Project X

Document List by Topic

Project X DocDB Home

These documents on Presentations are available:
Showing documents with topic Presentations on the most recent version. See documents with Presentations on any version.

Project X-doc-#	Title	Author(s)	Topic(s)	Last Updated
787-v5	325 MHz Cavity Test Cryostat 2K Conversion Functional Requirements Specification	Thomas H. Nicol	HINS 325 MHz SRF Requirements and Specifications Presentations Linac LE Linac	18 May 2011
1379-v1	PXIE 50 Ohm Fast Kicker: Measurement and Power Test Results of First Half Prototype	Alex Z Chen et al.	Presentations	18 Jun 2015
1380-v2	200 Ohm MEBT Chopper Development Progress	Alex Z Chen et al.	Instrumentation Presentations	10 Jun 2015
1375-v1	PXIE Operating Modes and Timing Events	Jim Steimel	Presentations Controls	26 May 2015
1372-v1	Space-Charge Compensation in the PXIE LEBT	Jean-Paul Carneiro et al.	Presentations Linac	11 May 2015
1365-v1	Summary for SLHiPP-5	Valeri A Lebedev	Reports Presentations Linac	15 Apr 2015
1361-v1	PXIE Controls Status	Michael J Kucera et al.	Presentations Controls	07 Apr 2015
1359-v1	PXIE LLR Update	Brian E Chase	Presentations	31 Mar 2015
1358-v2	PXIE LEBT Commissioning Update	Lionel R Prost	Presentations LE Linac	25 Mar 2015
1355-v1	HTS Vibration Analsys	Jeremiah Holzbauer et al.	Presentations	11 Mar 2015
1352-v1	Booster Longitudinal Impedance	Valeri A Lebedev	Instabilities Presentations RCS	10 Feb 2015
1331-v1	Painting in the course of PIP-II injection to Booster	Valeri A Lebedev	Presentations RCS	21 Oct 2014
1327-v4	Controls for PXIE and PIP-II	Jim Patrick	Presentations Controls	07 Oct 2014
1325-v1	PXIE LEBT Commissioning Update	Lionel R Prost	Presentations LE Linac	01 Oct 2014
1319-v1	Results of Hight Power Test of 325 MHz Couplers	Sergey Kazakov	SRF Presentations	27 Aug 2014
1318-v1	HIGH POWER DENSITY TEST OF PXIE MEBT ABSORBER PROTOTYPE	Curtis Baffes et al.	Presentations	26 Aug 2014
1315-v1	PXIE LEBT Emittance Scanner Commissioning	Richard D'Arcy	Presentations LE Linac	14 Aug 2014
1312-v1	Proton Capabilities at Fermilab	Steve Holmes	Presentations	07 Aug 2014
1311-v1	Proton Improvement Plan-II	Steve Holmes	Presentations	07 Aug 2014
1310-v1	PIP-II Overview: Goals, Status, Strategy	Steve Holmes	Presentations	07 Aug 2014
1309-v1	MegaWatt Proton Beams for Particle Physics at Fermilab	Steve Holmes	Presentations	07 Aug 2014
1308-v1	PXIE LEBT Commissioning Status	Lionel R Prost	Presentations LE Linac	29 Jul 2014
1307-v1	Intense Beams for Particle Physics	Bob Tschirhart	Presentations	17 Jul 2014
1298-v1	Tasks for the PIP-II RDR	Valeri A Lebedev	Presentations	25 Jun 2014
1292-v1	PXIE IS/LEBT Commissioning Update	Lionel R Prost	Ion Source Presentations LE Linac	15 May 2014
1290-v1	Highlights of the trip to SNS on May 5-6, 2014	Alexander Shemyakin et al.	Other Labs Presentations	13 May 2014
1279-v1	Status of Mechanical Design of LEBT_08APR14	Rich Andrews	Presentations	09 Apr 2014
1278-v1	PXIE LEBT Commissioning Status	Lionel R Prost	Presentations	08 Apr 2014
1274-v2	Preparation for the PIP-II RDR	Valeri A Lebedev	Main Injector Presentations LE Linac	01 Apr 2014
1273-v1	Engineering Document Management in Teamcenter	Donald Mitchell	Project Management Presentations	25 Mar 2014
1267-v1	Determination of Access controls for PXIE cave during RFQ RF powered operation	Anthony F Leveling	Reports Presentations LE Linac	04 Mar 2014
1263-v1	PXIE Ion Source & LEBT Commissioning Update	Rich Andrews et al.	Ion Source Presentations	18 Feb 2014
1261-v1	North American PAC 2013 Conference paper	Greg Saewert	Hardware Presentations	13 Feb 2014
1260-v2	PIP-II and PXIE	Valeri A Lebedev	HE Linac Presentations LE Linac	12 Feb 2014
1257-v1	Booster Injection in the Era of PIP-II: A preliminary assessment	David E. Johnson	Presentations	04 Feb 2014
1244-v1	Progress on RFQ couplers test stand	Sergey Kazakov	SRF Presentations	14 Jan 2014
1243-v2	PXIE CAD Model: Status, Responsibilities and Plan Forward	Curtis Baffes	Presentations Conventional Facilities	14 Jan 2014
1240-v1	PXIE Ion Source Commissioning Status - Update	Bruce Hanna et al.	Reports Ion Source Presentations	07 Jan 2014
1239-v1	Intensity Frontier materials for a general audience	Bob Tschirhart	Presentations	26 Dec 2013
1236-v1	Status of HWR Cryomodule Development	Peter N Ostroumov	SRF Presentations	17 Dec 2013
1228-v1	PXIE RFQ Status	Matt Hoff et al.	Presentations LE Linac	05 Nov 2013
1227-v1	PXIE Ion Source and LEBTInstallation Status	Lionel R Prost	Reports Front End Presentations	29 Oct 2013
1215-v1	PXIE Controls	Jim Patrick	Presentations Controls	20 Aug 2013
1216-v1	PXIE IS & LEBT Installation Status Report	Lionel R Prost	Presentations	20 Aug 2013
1209-v2	Summary of Project X Research Program Book	Bob Tschirhart	Experiments Presentations	25 Jul 2013
1208-v1	PROJECT X INJECTOR EXPERIMENT: GOALS, PLAN, AND STATUS	Steve Holmes et al.	Presentations LE Linac	03 Jul 2013
1207-v1	Modifications of PXIE Shielding Cave	Jerry Leibfritz	Presentations Conventional Facilities	24 Jun 2013
1206-v1	The Conceptual Design of the PXIE Beam Dump. Radiation Shielding and PXIE Complex Enclosure	Nikolay A. Solyak	Absorbers Presentations	24 Jun 2013
1202-v2	Project X Research Program presentation at the 2013 Fermilab Users Meeting	Bob Tschirhart	Experiments Presentations	12 Jun 2013
1203-v1	Project X Accelerator Status: Goals, Status, and Strategy	Steve Holmes	Presentations	12 Jun 2013
1190-v1	Project X Colloquium at the University of Washington	Bob Tschirhart	Experiments Presentations	11 Jun 2013
1198-v1	Update on Project X in the Snowmass Process	Bob Tschirhart	Experiments Presentations	10 Jun 2013
1196-v1	650 MHz high beta dressed cavity development plan	Timergali Khabiboulline et al.	SRF CW Linac HE Linac Presentations Cavities and Cryomodules 650 MHz	06 Jun 2013
1197-v1	Fermilab Intensity Frontier Research Program	Eric J. Prebys	Experiments Presentations	03 Jun 2013
1195-v1	Review of the US Intensity Frontier Research Program at the 'Snowmass on the Pacific Meeting'	Bob Tschirhart	Experiments Presentations	03 Jun 2013
1194-v1	Future Fermilab Intensity Frontier Program at the Snowmass ISOUPS meeting	Bob Tschirhart	Experiments Presentations	03 Jun 2013
1187-v1	Current Leads for Project X Cold Magnets	Thomas J. Peterson	Cryogenics Presentations	14 May 2013
1185-v1	Review of CLFV Facilities	Bob Tschirhart	Presentations	07 May 2013
1180-v1	Review of DOE Office of Science Facilites Exercise	Bob Tschirhart	Experiments Presentations	16 Apr 2013
1177-v1	Intensity Frontier overview to the March 2013 FRA Visting Committee	Bob Tschirhart	Presentations	29 Mar 2013
1174-v1	PXIE RFQ Update	Derun Li	Presentations	19 Mar 2013
1165-v1	Power test of a short 50 ohm kicker prototype	Ding Sun et al.	Reports Presentations	20 Feb 2013
1158-v1	MEBT BPM Prototype Flange Assembly Design Presentations	Matthew L Alvarez	Presentations	18 Feb 2013
1137-v1	RF Modeling of the Helical Kicker for Project X	Mohamed H A Hassan et al.	Instrumentation Presentations	13 Feb 2013
1154-v1	Project X HEP seminar at Caltech, January 2013	Bob Tschirhart	Experiments Presentations	30 Jan 2013
1151-v1	PXIE MEBT Bunching Cavity Status Update	Meiyu Chen et al.	Presentations Cavities and Cryomodules LE Linac	18 Jan 2013
1147-v1	Project-X Beam Transfer to Booster	Brian E Chase et al.	Presentations LE Linac	21 Dec 2012
1144-v1	PXIE MEBT Triplets, Doublets, and Dipole Correctors	Vladimir Kashikhin	Reports Front End Presentations Linac Simulations	21 Dec 2012
1141-v1	Chopper Scenarios for injection into Booster (part 1)	Brian E Chase et al.	Presentations H- Injection	18 Dec 2012
1139-v1	Project X HEP Seminar at University of Wisconsin Dec 2012	Bob Tschirhart	Experiments Presentations	11 Dec 2012
1136-v1	200 Ohm Chopper Update - Dec. 4, 2012	Greg Saewert	Instrumentation Presentations	04 Dec 2012
1131-v1	PXIE RFQ Installation & Commissioning Plan	Vic E Scarpine et al.	Front End Presentations	29 Nov 2012
1135-v1	Project X Plans for Snowmass	Bob Tschirhart	Experiments Presentations	29 Nov 2012
1134-v1	Project X Research Program staging plan	Bob Tschirhart	Experiments Presentations	29 Nov 2012
1133-v1	Project X Research Program	Bob Tschirhart	Experiments Presentations	29 Nov 2012
1121-v2	Snowmass strategy briefing to the Fermilab PPD Intensity Frontier department	Bob Tschirhart	Experiments Presentations	27 Nov 2012
1126-v3	PXIE Collaboration Meeting - Ion Source & LEBT	Lionel R Prost	Presentations	27 Nov 2012
1129-v1	PXIE LEBT studies at LBNL	Qing Ji	Presentations	27 Nov 2012
1128-v1	PXIE RFQ report	Derun Li	Presentations	27 Nov 2012
1127-v1	PXIE goals and plan	Sergei Nagaitsev	Presentations	27 Nov 2012
1125-v1	Project X presentation to the NuFACT meeting in July 2012	Bob Tschirhart	Experiments Presentations	26 Nov 2012
1124-v1	Project-X presentation to the CIPANP meeting, May 2012	Bob Tschirhart	Experiments Presentations	26 Nov 2012
1123-v1	Muon Physics in the Project X era	Bob Tschirhart	Experiments Presentations	26 Nov 2012
1122-v1	Project X outreach presentation at the November 2012 Physics Slam	Bob Tschirhart	Experiments Presentations	26 Nov 2012
1120-v1	Project X Research Program presentation to Fermilab PAC Oct 2012	Bob Tschirhart	Experiments Presentations	26 Nov 2012
1115-v2	Summary of Recent Research Program Activities	Bob Tschirhart	Experiments Presentations	16 Nov 2012
1113-v1	Project X: Technolgy, Perspectives, and Applications	Steve Holmes	Presentations	05 Nov 2012
1110-v1	RFQ coupler	Sergey Kazakov	Presentations LE Linac	25 Oct 2012
1107-v1	PXIE MEBTstatus and plans for FY2013	Alexander Shemyakin	Reports Front End Presentations	16 Oct 2012
1098-v3	Proposal for a ‘Phase I’ PXIE LEBT	Bruce Hanna et al.	Experiments Presentations Space Charge Effects	02 Oct 2012
1086-v1	MEBT Buncher Cavity pre-Design Review	Meiyu Chen et al.	Reviews Presentations 162.5 MHz	19 Jul 2012
1078-v1	Ion Source and LEBTStatuses	Lionel R Prost	Ion Source Front End Presentations LE Linac	03 Jul 2012
1076-v1	Project X Physics Study W&C June 22nd 2012	Bob Tschirhart	Presentations	29 Jun 2012
1075-v1	Summary of Project X Physics Study	Bob Tschirhart	Experiments Presentations	29 Jun 2012
1073-v1	PXIE Machine Protection System	Jim Steimel et al.	Accelerator Physics & System Integration CW Linac Presentations	26 Jun 2012
1070-v1	Project X Research Program presentation to the June 2012 PAC	Bob Tschirhart	Experiments Presentations	19 Jun 2012
1069-v2	Project X: Accelerator Goals and Challenges	Steve Holmes	Presentations	16 Jun 2012
1063-v1	Project X presentation to the May 2012 IPAC meeting	Bob Tschirhart	Presentations	04 Jun 2012
1062-v1	Project X presentation to the CIPANP conference	Bob Tschirhart	Presentations	04 Jun 2012
1056-v1	Project X chopper update (5/16/12)	Tao Tang	Instrumentation Other Labs Presentations Linac	16 May 2012
1055-v1	SLAC Project-X RF Development (May 16 2012)	Rosa Ciprian et al.	Other Labs Presentations Linac	16 May 2012
1052-v1	Project X and the Endless Frontier	Bob Tschirhart	Experiments Presentations	11 May 2012
1049-v1	Staging Opportunities for Project X	Steve Holmes	Presentations	08 May 2012
1048-v1	Summary of Project X interactions with the LBNE reconfiguration study	Bob Tschirhart	Friday Meeting Presentations	04 May 2012
1046-v1	BARC IIFC on Instrumentation - April 2012 Visit Summary	Gopal Joshi et al.	Instrumentation Collaboration Other Labs Presentations	03 May 2012
1037-v1	SSR1 Cryomodule Development - Project X Collaboration Meeting - April 10-12, 2012	Thomas H. Nicol	SRF Presentations	13 Apr 2012
1036-v1	Project X Beta = 0.9, 650 MHz, Cavity and Cryomodule Status	Thomas J. Peterson	Cryogenics SRF Presentations	12 Apr 2012
1034-v1	PX front end SC cavity design and measurements	Timergali Khabiboulline	SRF Presentations Cavities and Cryomodules	12 Apr 2012
1033-v1	Cavity Test Stands for Project X	Andy Hocker	SRF Presentations	11 Apr 2012
1032-v1	Cavity Processing Issues for Project X	Allan M Rowe	Presentations	11 Apr 2012
1031-v1	PXIE Beam Diagnostics	Manfred Wendt	Instrumentation Presentations	11 Apr 2012
1029-v2	RF Power Sources for PXIE LBNL collaboration meeting	Ralph J. Pasquinelli	Presentations	11 Apr 2012
1022-v3	PXIE Vacuum Concept	Alex Z Chen	Presentations	11 Apr 2012
1028-v3	200Ohm Chopper R&D Progress	Greg Saewert	Instrumentation Front End Presentations	10 Apr 2012
1025-v2	PXIE Overview: Goals, Concepts and Planning	Sergei Nagaitsev	Presentations	09 Apr 2012
1026-v2	Project X: News, Strategy, Meeting Goals	Steve Holmes	Presentations	09 Apr 2012
1024-v1	MEBT Buncher Cavities.Por	Gennady Romanov	Presentations	08 Apr 2012
1023-v1	Bunch-by-Bunch Kicker and its Driver: 50  choice	Ralph J. Pasquinelli et al.	Instrumentation Absorbers Presentations	08 Apr 2012
1009-v1	Updates on Broadband Chopper Driver Development in SLAC (Mar. 2012)	Tao Tang	Instrumentation Other Labs Presentations Linac	08 Mar 2012
1011-v1	EM analysis of a helical electrode for a broadband chopper	Manfred Wendt	Instrumentation Presentations Linac Simulations	08 Mar 2012
1010-v1	SLAC Project-X RF Development, March 7 2012	Rosa Ciprian	Other Labs Presentations Linac	08 Mar 2012
1006-v4	PXIE Accelerator Physics	Valeri A Lebedev	Reviews Presentations	06 Mar 2012
1007-v2	SSR1 cryomodule for PXIE - PXIE review - March 6-7, 2012	Thomas H. Nicol	Reviews Presentations	06 Mar 2012
1008-v2	PXIE HWR Cryomodule	Peter N Ostroumov	Reviews Presentations	05 Mar 2012
1005-v1	RF Power Sources for PXIE	Ralph J. Pasquinelli	Reviews SRF Presentations	05 Mar 2012
1001-v1	PXIE Review - Ion Source & LEBT	Qing Ji et al.	Reviews Presentations	05 Mar 2012
984-v1	Beam Diagnostic Instrumentation for PXIE	Vic E Scarpine	Instrumentation Presentations	17 Jan 2012
972-v1	PXIE Vacuum Considerations	Alex Z Chen et al.	Presentations	21 Dec 2011
963-v1	Electron Beam Dynamics Simulations for the Proposed Test of the PXIE/Project X MEBT Absorber	Lionel R Prost et al.	Experiments Absorbers Presentations Simulations	15 Nov 2011
959-v1	Project X Update	Steve Holmes	Presentations	09 Nov 2011
953-v1	Project X: Status and Plans	Steve Holmes	Presentations	28 Oct 2011
950-v1	Project X: Status, Strategy, Meeting Goals	Steve Holmes	Collaboration Presentations	26 Oct 2011
949-v1	SSR1 cryomodule for PXIE - Project X collaboration meeting - October 26, 2011	Thomas H. Nicol	Presentations	26 Oct 2011
944-v1	Project X Reference Design andR&D Plan	Sergei Nagaitsev	Presentations	24 Oct 2011
940-v1	Project X Pulsed Linac, Overview and plans	Nikolay A. Solyak	Presentations Linac	23 Oct 2011
937-v1	Progress report on fast kicker (cooling version)	Valeri A Lebedev et al.	Presentations	19 Oct 2011
921-v1	Front End Test Facility	Sergei Nagaitsev	Presentations	19 Aug 2011
913-v1	Notes from the SPL & ESS Collaboration Meeting	Manfred Wendt	Presentations	08 Jul 2011
903-v1	Project X Upgrade Options for 4 MW at 8 GeV	Sergei Nagaitsev	Presentations	05 Jul 2011
893-v2	Beam chopping for injection into RR/MI	Sergei Nagaitsev	Presentations H- Injection	25 May 2011
889-v1	Design Limitations for MEBT Kicker	Valeri A Lebedev	Presentations	17 May 2011
877-v1	Project X: A New Multi-Megawatt Proton Source at Fermilab	Sergei Nagaitsev	Presentations	05 May 2011
874-v1	Bandwidth Considerations for the Project X Fast Kicker	Brian E Chase	Presentations	03 May 2011
872-v1	SNS/ProjectX Commissioning/Infrastructure	Willem Blokland	Operations Instrumentation Instabilities Presentations Linac Controls	22 Apr 2011
871-v1	Beam Diagnostics: Requirements	David E. Johnson et al.	Instrumentation Presentations Linac	22 Apr 2011
870-v1	Beam Diagnostics & Beam Studies at HINS / MDB	Vic E Scarpine	Instrumentation HINS Presentations Linac	22 Apr 2011
869-v1	Beam Loss Monitors operating at Cryogenic Temperature with FPGA- Based TDC Signal Processing	Arden A. Warner et al.	Instrumentation Presentations Linac	22 Apr 2011
868-v1	Propagation and noise experiments for a fiber-delivered laser wire	John M Byrd et al.	Instrumentation Collaboration Presentations Linac	22 Apr 2011
866-v1	High Power Fast Faraday Cup R&D	Craig Deibele et al.	Instrumentation Collaboration Presentations Linac	22 Apr 2011
865-v1	BPMs as Phase Monitors	Craig Deibele	Instrumentation Collaboration Presentations Linac	22 Apr 2011
864-v1	Considerations for FET-based Broadband Chopper Modulator	Craig Burkhart et al.	Instrumentation Collaboration Presentations Linac	22 Apr 2011
863-v1	Status of the Kicker R&D for a Broadband Chopper	Greg Saewert et al.	Instrumentation Presentations Linac	22 Apr 2011
844-v1	Front End WG: Introduction	Sergei Nagaitsev	Presentations	12 Apr 2011
843-v1	Project X Reference Design Overview	Sergei Nagaitsev	Presentations	12 Apr 2011
841-v1	Project X - A New Multi-MW Proton Source at Fermilab	Sergei Nagaitsev	Presentations	07 Apr 2011
840-v1	Project X Cryomodule Configurations	Thomas H. Nicol	325 MHz Cryogenics Presentations Cavities and Cryomodules LE Linac	22 Mar 2011
832-v1	CW Re-Buncher Cavity Design for Project X	Gennady Romanov	Presentations LE Linac	09 Mar 2011
831-v1	FNAL RFQ Studies for Project-X	Andrey Kolomiets et al.	Presentations LE Linac	09 Mar 2011
834-v1	Project X Front End Workshop	Sergei Nagaitsev	Presentations	09 Mar 2011
830-v1	Project X Poster at InPAC 2011	Jim Kerby	Project Management Presentations	07 Mar 2011
829-v1	Project X Overview Talk at InPAC2011	Jim Kerby	Project Management Presentations	07 Mar 2011
824-v1	650 MHz Cryomodule, Stand-alone TESLA-style	Thomas J. Peterson	Cryogenics HE Linac Presentations	10 Feb 2011
823-v1	Solenoid Lenses for SSR Cryomodules	Iouri Terechkine	HINS SRF Presentations Linac	10 Feb 2011
816-v1	Project X Front-end concept for 162.5 MHz RFQ	Alexander Vostrikov	Presentations Linac	04 Feb 2011
814-v1	Cryomodule Helium Pressure Stability	Thomas J. Peterson	Cryogenics Instabilities HE Linac Presentations	30 Jan 2011
809-v1	Design studies of 162.5 MHz RFQ	Sunny Lalitha sanyasirao Sista venugopal	Presentations Linac LE Linac	20 Jan 2011
803-v1	Project-X Front-End Update	John Staples	Front End Other Labs Presentations	15 Dec 2010
802-v1	Project X update	Sergei Nagaitsev	Presentations	14 Dec 2010
798-v1	Possible Configurations for Prototypes of PX Cryomodules:SSR0 and SSR1	Iouri Terechkine	HINS SRF Presentations Linac LE Linac	10 Dec 2010
792-v2	Chopping and Limitations to MEBT	Valeri A Lebedev	Absorbers Presentations LE Linac Space Charge Effects Transfer Line	03 Dec 2010
797-v1	Broadband Chopper	Manfred Wendt	Presentations	03 Dec 2010
796-v1	Project X: A Multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	02 Dec 2010
793-v1	Scenarios with 325 and 162.5 MHz linac bunches	Sergei Nagaitsev	Experiments Presentations Linac	01 Dec 2010
786-v1	Project-X Presentation to the Fermilab PAC	Bob Tschirhart	Presentations	13 Nov 2010
785-v1	Project X: A Multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	10 Nov 2010
783-v1	325 MHz Spoke Cavity Status and FY11 Plans	Bob Webber	HINS SRF Presentations Linac LE Linac	04 Nov 2010
780-v1	RF Issues with Configuration Options	Brian E Chase	Presentations	02 Nov 2010
773-v1	Front-end R&D Plans - SSR Prototype and Chopper Section	Bob Webber	HINS Presentations Linac LE Linac	01 Nov 2010
770-v1	SSR1 Cryomodule Status	Thomas H. Nicol	HINS SRF Presentations Linac LE Linac	01 Nov 2010
767-v1	MEBT Chopper Beam Dump	Nikolai Mokhov	HINS Presentations Linac LE Linac	27 Oct 2010
750-v1	Integration of the SSR cryomodules into the Project X cryo system and implications for the SSR1 prototype	Thomas J. Peterson	Cryogenics Presentations	30 Sep 2010
748-v1	IIFC on Instrumentation and Controls	TS Ananthakrishnan et al.	Instrumentation Other Labs Presentations Linac Controls	24 Sep 2010
706-v1	RF Controls Strategies	Brian E Chase	Presentations LLRF	08 Sep 2010
715-v2	ESS Opportunities	Andreas Jansson	Instrumentation Other Labs Presentations	08 Sep 2010
713-v3	Laser Diagnostics	John M Byrd et al.	Instrumentation Other Labs Presentations	08 Sep 2010
721-v2	Project X: Status, Strategy, Meeting Goals	Steve Holmes	Collaboration Presentations	08 Sep 2010
704-v1	MOSFET Chopper	Tao Tang	HINS Other Labs Presentations Linac	07 Sep 2010
725-v2	FRIB Instrumentation	Saeed Assadi	Instrumentation Other Labs Presentations	07 Sep 2010
731-v1	RFQ Activities in India	Sunny Lalitha sanyasirao Sista venugopal	Collaboration Presentations Linac LE Linac	07 Sep 2010
678-v1	SNS Diagnostics	John D Galambos	Other Labs Presentations	07 Sep 2010
714-v0	SNS Activities	Willem Blokland	None	04 Sep 2010
716-v1	H- Ion Source for Project X	Qing Ji	Ion Source Presentations Linac LE Linac	07 Sep 2010
659-v1	Laser Chopper for Project X	David E. Johnson	Presentations	03 Sep 2010
657-v1	Third Report on SSR1-01 RF Results in MDB Cryostat and Power Coupler Qext Calculations	Timergali Khabiboulline	HINS SRF Presentations Linac LE Linac	27 Aug 2010
654-v2	HINS Report for DOE Site Visit - B&R Code KA15-02-011_August_23_2010	Bob Webber	HINS SRF Presentations Linac LE Linac	23 Aug 2010
650-v1	SSR1 cold test - FAST/SLOW TUNER - first data	Yuriy Pischalnikov	HINS SRF Presentations Linac LE Linac	20 Aug 2010
642-v1	Optimization of Wire Scanner position for HINS Energy Spread Measurement	Eliana Gianfelice-Wendt	Instrumentation HINS Presentations Simulations LE Linac	04 Aug 2010
635-v4	Project-X presentation for ICHEP	Bob Tschirhart	Presentations	02 Aug 2010
633-v1	HINS Six-Cavity Test Presentation to PX Front-End Meeting	Bob Webber	HINS Presentations LE Linac	07 Jul 2010
630-v1	Analysis of CC2 data at 4K	Gustavo I Cancelo	Presentations Controls LLRF	30 Jun 2010
620-v1	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	06 Jun 2010
617-v1	PX_solyak_lattice_front-end_in_HINS_Cave	Bob Webber	HINS Presentations LE Linac	26 May 2010
600-v3	An Estimate of Orbit Correction for SSR0 section of the Project X	Valeri A Lebedev	HINS Presentations Linac	12 May 2010
598-v1	HINS Beam Absorber MARS15 Simulations (extended)	Nikolai Mokhov	HINS Absorbers Presentations	30 Apr 2010
450-v3	Project X CW linac design	Nikolay A. Solyak	Presentations Linac	26 Mar 2010
447-v2	Project X Update	Vyacheslav P. Yakovlev et al.	Presentations Linac	24 Mar 2010
452-v1	Using Booster, Switchyard and MI-8 in Project X	Robert M. Zwaska et al.	Presentations	20 Mar 2010
451-v1	Project X Status and Strategy	Steve Holmes	Presentations	17 Mar 2010
449-v1	The Front-End System Study of Project X	Derun Li	Presentations	16 Mar 2010
448-v1	Project X Status Report	Sergei Nagaitsev	Presentations	16 Mar 2010
442-v1	A Multi-Stripline Chopper with individual MOSFET Drivers	Manfred Wendt	Instrumentation Presentations Linac	02 Mar 2010
441-v2	Options for Locating 325MHz Cryomodule Test Stand at MDB	Bob Webber	HINS Presentations	24 Feb 2010
438-v1	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	16 Feb 2010
430-v1	Design concepts for a pulsed multi-GeV H¯ LINAC	Peter N Ostroumov	HINS Presentations Linac	03 Feb 2010
426-v1	HINS Possibilities for Project X, January 2010	Bob Webber	Instrumentation HINS SRF Presentations	26 Jan 2010
416-v1	Lifetime of Stark States Hydrogen Atom in Magnetic Field Calculation and Estimation of Losses at Stripping Injection	Alexandr Drozhdin et al.	Main Injector Presentations RCS	20 Jan 2010
421-v1	Overview of proton drivers for neutrino super beams and neutrino factories	Weiren Chou	Main Injector Presentations Linac RCS	20 Jan 2010
352-v1	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	07 Jan 2010
335-v1	Design and Engineering Limitations for SSR1 Cavities and Cryomodules	Thomas H. Nicol	Presentations LE Linac	16 Dec 2009
334-v1	Project X Linac: Beam Preparation and Distribution	Iouri Terechkine et al.	Presentations LE Linac	09 Dec 2009
330-v1	SPL Meeting impressions	Vyacheslav P. Yakovlev	Presentations Linac	25 Nov 2009
327-v1	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	05 Nov 2009
278-v2	RFQ Studies	John Staples	Collaboration Presentations LE Linac	12 Sep 2009
306-v1	325 MHz Couplers	Timergali Khabiboulline	Collaboration Presentations LE Linac	12 Sep 2009
305-v1	1.3 GHz Couplers	Chris Adolphsen	Collaboration HE Linac Presentations	12 Sep 2009
304-v1	Triple Spoke Cavities for a CW Linac	Peter N Ostroumov	Collaboration Presentations LE Linac	12 Sep 2009
303-v1	Linac Design: Single Spoke Cavities	Vyacheslav P. Yakovlev	Collaboration Presentations LE Linac	12 Sep 2009
302-v1	Front End	Derun Li	Collaboration Presentations LE Linac	12 Sep 2009
301-v1	Overall Linac Design, 1.3 GHz Cavities	Nikolay A. Solyak	Collaboration HE Linac Presentations	12 Sep 2009
300-v1	RF Working Group Summary	Leigh Harwood et al.	Collaboration HE Linac Presentations LE Linac LLRF	12 Sep 2009
299-v1	RCS and Transfer Line WG Summary	David E. Johnson et al.	Collaboration Presentations RCS Transfer Line	12 Sep 2009
295-v2	Summary Instrumentation & Controls Working Group	Willem Blokland	Instrumentation Presentations Controls	12 Sep 2009
297-v1	Cavities and Cryomodules Working Group Summary	Mark Champion	SRF Presentations	12 Sep 2009
298-v2	Cryomodule Development at Fermilab	Donald Mitchell	SRF Presentations	12 Sep 2009
294-v2	Linac WG summary	Sergei Nagaitsev	Collaboration Presentations Linac	12 Sep 2009
277-v2	Project X ICD-1 and ICD-2 Overview	Sergei Nagaitsev	Collaboration Presentations	12 Sep 2009
264-v3	xTCA for Physics Standards - Progress & Applications Summary for Project X Collaboration	Ray Larsen	Instrumentation Presentations Controls	12 Sep 2009
291-v2	Longitudinal Laser Wire for Project X / HINS	John M Byrd	Instrumentation Presentations	12 Sep 2009
281-v2	MI/RR Space Charge Simulations with Synergia	James F Amundson et al.	Collaboration Main Injector Presentations Simulations Space Charge Effects	11 Sep 2009
258-v2	Cryomodule design changes for ICD-2	Arkadiy Klebaner	Presentations	11 Sep 2009
284-v5	RCS High Power RF System	John S Reid	Presentations	11 Sep 2009
282-v1	Project X Control System	Jim Patrick	Presentations Controls	11 Sep 2009
270-v3	Linac Design - Chopper Ideas	Bob Webber	Presentations Linac	11 Sep 2009
279-v1	HINS as a Beam Diagnostics Test Facility	Vic E Scarpine	Instrumentation Presentations	11 Sep 2009
273-v1	RCS for Project-X	Valeri A Lebedev	Presentations Space Charge Effects	11 Sep 2009
271-v1	Project X Physics Program Review	Bob Tschirhart	Collaboration Presentations	11 Sep 2009
262-v1	Fermi Timing Systems and Project X	Gregory L. Vogel	Instrumentation Presentations Controls	10 Sep 2009
266-v1	Bunch Shape Monitor for HINS	Wai-Ming Tam	Instrumentation Presentations	10 Sep 2009
268-v1	E-Beam Scanner R&D	Randy M Thurman-Keup	Instrumentation Presentations	10 Sep 2009
265-v1	Experience on SNS Beam Instrumentation Collaborations	Willem Blokland	Instrumentation Presentations Controls	10 Sep 2009
263-v1	Collaboration Opportunities on Project X Beam Instrumentation	Manfred Wendt	Instrumentation Presentations	10 Sep 2009
253-v3	Review Transfer/Injection R&D Plan – Siting Issues	David E. Johnson	Collaboration Presentations Transfer Line	10 Sep 2009
261-v1	Design Considerations for CW SRF Linacs	Arkadiy Klebaner et al.	Cryogenics Presentations	10 Sep 2009
259-v1	Project X ICD-2 Cryogenic System Overview	Jay C. Theilacker	Cryogenics Presentations	10 Sep 2009
250-v5	Project X: Introduction, Strategy, and Collaboration Meeting Goals	Steve Holmes	Presentations	10 Sep 2009
251-v1	Project X ICD-1 Cryogenics and associated RD&D Plan Overview	Arkadiy Klebaner	Cryogenics Presentations	10 Sep 2009
252-v1	J-PARC RCS Injection Issues	Pranab K Saha	Collaboration Other Labs Absorbers Presentations H- Injection	10 Sep 2009
249-v1	Deflecting Cavity for the Beam RF Splitter	Vyacheslav P. Yakovlev	SRF Presentations Transfer Line	01 Sep 2009
248-v1	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	31 Aug 2009
247-v1	Project X ICD2 briefing	Sergei Nagaitsev	Presentations	21 Aug 2009
227-v1	HINS Status Report for June 19, 2009 Project X Meeting	Bob Webber	HINS Presentations	19 Jun 2009
221-v1	ACD proton front end	Sergei Nagaitsev	Presentations LE Linac	17 Jun 2009
218-v2	Project X: A multi-MW Proton Source at Fermilab	Steve Holmes	Presentations	14 Jun 2009
216-v1	Project-X ACD write-up	Valeri A Lebedev	Basis of Estimate Presentations	02 Jun 2009
211-v2	Project X at Fermilab: Prospects and Plans	Steve Holmes	Presentations	08 May 2009
21-v1	High Energy Linac Overview	Sergei Nagaitsev	HE Linac Presentations	23 Apr 2009
108-v1	Beam physics, linac lattice	Peter N Ostroumov	Presentations Linac	23 Apr 2009
137-v1	Fermilab proposal for the PrX Linac RF distribution	Oleg Nezhevenko	Presentations Linac	23 Apr 2009
138-v1	CERN interests/views	Roland Garoby	Presentations Linac	23 Apr 2009
139-v1	LLRF and other activities (LBNL)	Lawrence Doolittle	Presentations Linac	23 Apr 2009
98-v1	Present details of transfer line and injection ICD	David E. Johnson	Recycler Presentations	23 Apr 2009
99-v1	Recycler Lattice	Meiqin Xiao	Recycler Presentations	23 Apr 2009
100-v1	Transverse phase space painting	Alexandr Drozhdin et al.	Recycler Presentations	23 Apr 2009
101-v1	Laser stripping	Robert M. Zwaska	Presentations H- Injection	23 Apr 2009
102-v1	Injection absorber design	Igor L Rakhno et al.	Presentations H- Injection	23 Apr 2009
103-v1	Footprint and Siting Issues	David E. Johnson	Recycler Presentations	23 Apr 2009
104-v1	PS2 Injection: thoughts and concerns	Brennan Goddard	Recycler Presentations	23 Apr 2009
88-v1	Px Overview/Goals of working grp/elliptical cav.	Robert D Kephart	SRF Presentations	23 Apr 2009
89-v1	FNAL program and ANL/FNAL infrastructure	Shekar Mishra	SRF Presentations	23 Apr 2009
112-v1	Superconducting Accelerator Segmentation Overview	Jay C. Theilacker	Cryogenics Presentations	23 Apr 2009
181-v2	Project X Directors Review - Controls	Jim Patrick	Basis of Estimate Presentations Controls Directors Reviews	16 Mar 2009
190-v1	PX Dir Review 8 GeV Transport Line Components	David E. Johnson	Basis of Estimate Presentations Directors Reviews Transfer Line	15 Mar 2009
189-v1	PX Dir Review 8 GeV Injection Components	David E. Johnson	Basis of Estimate Presentations Directors Reviews H- Injection	15 Mar 2009
188-v2	Project Management Overview - Director's Review	Steve Holmes	Presentations Directors Reviews	15 Mar 2009
175-v2	PX Dir Review 8 GeV level 2 Overview	David E. Johnson	Presentations Directors Reviews Transfer Line H- Injection	15 Mar 2009
176-v2	Introduction and Overview - Director's Cost Review	Steve Holmes	Presentations Directors Reviews	13 Mar 2009
178-v1	Project X: Initial Configuration	Paul Derwent	Instrumentation HINS Cryogenics Main Injector Recycler Presentations Linac Controls Directors Reviews Transfer Line Conventional Facilities	13 Mar 2009
129-v1	JLab interests and capabilities	Andrew Hutton	SRF Presentations	24 Feb 2009
147-v1	PrX SC quads/solenoids	Michael A Tartaglia	Presentations Linac	24 Feb 2009
128-v1	SLAC interest in Px RF equipment (dist, klystrons, modulators), RF R&D needed	Chris Adolphsen	Presentations Linac	24 Feb 2009
127-v1	HINS Solenoids Head Load	Thomas M. Page	Cryogenics Presentations	24 Feb 2009
126-v1	NML Cryogenic System Overview	Alexander Martinez	Cryogenics Presentations	24 Feb 2009
125-v1	The 1.3 GHzCryomodule Heat Load	Thomas J. Peterson	Cryogenics Presentations	24 Feb 2009
124-v1	MI Collimation experience	Bruce C. Brown	Main Injector Presentations	24 Feb 2009
123-v1	Review of MI e-cloud simulations	Miguel A Furman	Main Injector Presentations	24 Feb 2009
122-v1	MI e-cloud measurements	Robert M. Zwaska	Main Injector Presentations	24 Feb 2009
121-v1	How to design/build top loaded cryostats	Joel D. Fuerst	Cryogenics Presentations	24 Feb 2009
120-v1	Cornell interests and capabilities	Maury Tigner	Presentations Linac	24 Feb 2009
119-v1	SLAC proposals for PrX (1.3) couplers	Chris Adolphsen	Presentations Linac	24 Feb 2009
140-v1	PrX coupler requirements	Nikolay A. Solyak et al.	Presentations Linac	24 Feb 2009
118-v1	ANL interests and capabilities (spokes + ellipticals)	Michael P. Kelly	SRF Presentations	24 Feb 2009
117-v1	Intro to PrX front end/Low Beta Cavities	Bob Webber	Presentations LE Linac	24 Feb 2009
116-v1	Linac lattice requirements on cryomodules	Peter N Ostroumov	Presentations Linac Conventional Facilities	24 Feb 2009
115-v1	Present initial draft of RD&D plan	David E. Johnson	Recycler Presentations	24 Feb 2009
114-v1	Present current R&D issues	David E. Johnson	Recycler Presentations	24 Feb 2009
113-v1	SRF Pressure Safety at Fermilab	Thomas H. Nicol	Cryogenics SRF Presentations	24 Feb 2009
111-v1	Potential Cryogenic Cycles	Dana Arenius	Presentations Conventional Facilities	24 Feb 2009
110-v1	Project X Cryogenic System Overview	Arkadiy Klebaner	Cryogenics Presentations	24 Feb 2009
109-v1	Presentation of possible Project X Beam Instrumentation R&D projects	Vic E Scarpine et al.	Instrumentation Presentations	24 Feb 2009
92-v1	India interest in beta = 0.8 CM and capabilities	V. Sahni	SRF Presentations	24 Feb 2009
91-v1	India interest in Spoke resonators	A. Roy	SRF Presentations	24 Feb 2009
107-v1	Experience with the RHIC yt-jump system	Thomas Roser	Main Injector Presentations	24 Feb 2009
105-v1	Review of MI Issues	Ioanis Kourbanis	Main Injector Presentations	24 Feb 2009
106-v1	New rf system requirements/preliminary design	John S Reid	Main Injector Presentations	24 Feb 2009
143-v1	Accelerator Issues of Project X 8/7/2007	Dave McGinnis	Reports Presentations Linac	28 Jan 2009
90-v1	MSU on Beta = 0.8 R&D so far, what is needed, and interests	Richard York	SRF Presentations	17 Dec 2008
97-v1	A Personal View of Beam Instrumentation Collaborations	Manfred Wendt	Instrumentation Presentations	02 Dec 2008
95-v2	Overview of SNS Beam Instrumentation (Incl. Collaboration Aspects)	Willem Blokland	Instrumentation Presentations	02 Dec 2008
96-v1	HINS Beam Instrumentation R&D	Vic E Scarpine	Instrumentation Presentations	02 Dec 2008
94-v1	Project X Initial Configuration Overview	Paul Derwent	Presentations	02 Dec 2008
93-v1	Project X Introduction, Strategy, and Collaboration Goals	Steve Holmes	Presentations	02 Dec 2008
84-v2	XYZ	Valeri A Lebedev et al.	Presentations	25 Nov 2008
87-v1	Project X Presentation to Linear Collider Workshop 11-16-08	Steve Holmes	Presentations	17 Nov 2008
86-v1	Project X Talk to HEPAP 11-13-08	Steve Holmes	Presentations	14 Nov 2008
82-v1	AP&T Seminar 30 Oct 08 on the ICD	Paul Derwent	Project Management Presentations	30 Oct 2008
78-v1	120 GeV Targeting	James Hylen	Reviews Targetting Presentations	07 Oct 2008
77-v1	Recycler 8.9 GeV/c Extraction	David E. Johnson	Reviews Recycler Presentations	07 Oct 2008
76-v1	Project X Main Injector	Valeri A Lebedev	Reviews Main Injector Presentations	07 Oct 2008
75-v1	Project-X Related Issues in Recycler	Alexander A Valishev	Reviews Recycler Presentations	07 Oct 2008
74-v1	Project X: 8 GeV Recycler Injection	David E. Johnson	Reviews Presentations H- Injection	07 Oct 2008
73-v1	Project X Linac	Giorgio Apolinari	Reviews Presentations Linac	07 Oct 2008
72-v1	Project X Overview	Dave McGinnis	Reviews Presentations	07 Oct 2008
67-v1	Issues and Challenges of High Power Targets for Muon Colliders	Kirk T McDonald	Targetting Presentations	01 Oct 2008
66-v1	Experimental Radiation Damage Assessment of High Power Accelerator Targets	Nikolaos Simos	Targetting Presentations	01 Oct 2008
65-v1	Issues with Liquid vs. Solid Targets	John C Sheppard	Targetting Presentations	01 Oct 2008
64-v1	IHEP 2 Megawatt Target Design	James Hylen	Targetting Presentations	01 Oct 2008
63-v1	High Power Targets for Project X and Beyond	Kirk T McDonald	Targetting Presentations	01 Oct 2008
62-v1	Activation and Remote Handling	John C Sheppard	Targetting Presentations	01 Oct 2008
61-v1	Engineering Issues for the NuMI Beamline at 2 MW	Patrick G Hurh	Targetting Presentations	01 Oct 2008
60-v1	Modeling of Ring Performance	Robert D Ryne	Main Injector Recycler Presentations Simulations	01 Oct 2008
59-v1	Injection and Extraction	David E. Johnson	Main Injector Recycler Presentations Transfer Line	01 Oct 2008
58-v1	Transverse Damper	Phil Adamson	Main Injector Instabilities Recycler Presentations	01 Oct 2008
57-v1	RF System and Beam Loading Compensation	John S Reid	Main Injector Recycler Presentations	01 Oct 2008
56-v1	Transition Crossing Simulations	Ioanis Kourbanis	Main Injector Presentations Simulations	01 Oct 2008
55-v1	Gamma Transition Jump	Weiren Chou et al.	Main Injector Presentations	01 Oct 2008
54-v1	Present MI Operation and Near Future Plans	Ioanis Kourbanis	Operations Main Injector Presentations	01 Oct 2008
53-v1	SNS Laser Stripping Development	Aleksandrov V Aleksandrov	Other Labs Presentations H- Injection	01 Oct 2008
52-v1	Transfer lines, H- stripping and injection	Deepak Raparia	Presentations Transfer Line H- Injection	01 Oct 2008
51-v1	Present RR operation	Consolato Gattuso	Operations Recycler Presentations	01 Oct 2008
50-v1	Beam Loss and Collimation	Nikolai Mokhov	Main Injector Absorbers Presentations	01 Oct 2008
49-v1	Electron Cloud, EP Instability and Requirements for Vacuum	Miguel A Furman	Main Injector Instabilities Recycler Presentations	01 Oct 2008
48-v1	Theoretical Expectations for Instabilities	Alexey V Burov	Main Injector Instabilities Recycler Presentations	01 Oct 2008
47-v1	Experimental Observations of Instabilities at Main Injector	Ioanis Kourbanis	Main Injector Instabilities Presentations	01 Oct 2008
45-v1	Linac Instrumentation	Nathan Eddy	Instrumentation Presentations Linac	01 Oct 2008
44-v1	Electron source at a 2-GeV location	Philippe Piot	Presentations Linac	01 Oct 2008
43-v1	MSU Collaboration Report - Beta 0.8 Cavities	Walter Hartung	Other Labs Presentations Linac	01 Oct 2008
42-v1	Automated Linac Re-tuning	John D Galambos	Presentations Linac	01 Oct 2008
41-v1	PrX Civil Construction and Layout	Dixon Bogert	Presentations Linac Conventional Facilities	01 Oct 2008
40-v1	Cryo Systems Needed for Project X	Arkadiy Klebaner	Cryogenics Presentations Linac	01 Oct 2008
39-v1	Berkeley Collaboration Report - Buncher Cavities and LLRF	Alessandro Ratti	Other Labs Presentations LE Linac	01 Oct 2008
38-v1	Brookhaven Collaboration Report - Instrumentation	Roger Connolly	Instrumentation Other Labs Presentations LE Linac	01 Oct 2008
37-v1	Argonne Collaboration Report - Accelerator Physics and Spoke Cavities	Donald F Geesaman	Other Labs Presentations LE Linac	01 Oct 2008
36-v1	History of SNS Design and Decisions	Robert L Kustom	Other Labs Presentations LE Linac	01 Oct 2008
35-v1	LLRF Challenges	Brian E Chase	HE Linac Presentations	01 Oct 2008
34-v1	RF Distribution for Project X	Christopher Nantista	HE Linac Presentations	01 Oct 2008
33-v1	Project X and ILC: Differences and Similarities	Chris Adolphsen	HE Linac Presentations	01 Oct 2008
31-v1	SC Spoke Cavity Design and Status	Timergali Khabiboulline	Presentations LE Linac	01 Oct 2008
32-v1	Superconducting Solenoid Design	Iouri Terechkine	Presentations LE Linac	01 Oct 2008
30-v1	Room Temperature Cavity Design	Gennady Romanov	Presentations LE Linac	30 Sep 2008
29-v1	325 MHz RF Distribution	Alfred Moretti	Presentations LE Linac	30 Sep 2008
28-v1	SNS Superconducting Linac operating experience and issues	Isidoro E Campisi	Other Labs Presentations Linac	30 Sep 2008
27-v1	What It Will Take to Produce 1 Cryomodule per Month	Robert D Kephart	Cryogenics Presentations	30 Sep 2008
24-v1	120 GeV Targeting Overview	James Hylen	Targetting Presentations	30 Sep 2008
23-v1	Main Injector Overview	Valeri A Lebedev	Main Injector Presentations	30 Sep 2008
22-v1	Recycler Overview	Alexander A Valishev	Recycler Presentations	30 Sep 2008
20-v1	Low Energy Linac Overview	Bob Webber	Presentations LE Linac	30 Sep 2008
19-v1	Project X Overview	Dave McGinnis	Presentations	30 Sep 2008
18-v1	Introductory Remarks	Steve Holmes	Presentations	30 Sep 2008

Number of documents found: 378

[ DocDB Home ] [ Search ] [ Last 20 Days ] [ List Authors ] [ List Topics ]


Security, Privacy, Legal Fermilab Policy on Computing

For assistance contact HelpDesk

DocDB Version 8.8.9, contact Document Database Administrators
Execution time: 2 wallclock secs ( 0.48 usr + 0.12 sys = 0.60 CPU)

Project X

Document List by Topic

These documents on Presentations are available:Showing documents with topic Presentations on the most recent version. See documents with Presentations on any version.

These documents on Presentations are available:
Showing documents with topic Presentations on the most recent version. See documents with Presentations on any version.