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HIGH POWER DENSITY TEST OF PXIE MEBT ABSORBER PROTOTYPE

Document #:
Project X-doc-1318-v1
Document type:
proceeding
Submitted by:
Alexander Shemyakin
Updated by:
Alexander Shemyakin
Document Created:
26 Aug 2014, 08:19
Contents Revised:
26 Aug 2014, 08:19
DB Info Revised:
26 Aug 2014, 08:19
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Abstract:
One of the goals of the PXIE program at Fermilab is to demonstrate the capability to form an arbitrary bunch pattern from an initially CW 162.5 MHz H- bunch train coming out of an RFQ. The bunch-by-bunch selection will take place in the 2.1 MeV Medium Energy Beam Transport (MEBT) by directing the undesired bunches onto an absorber that needs to withstand a beam power of up to 21 kW, focused onto a spot with a ~2 mm rms radius. Two prototypes of the absorber were manufactured from molybdenum alloy TZM and tested with a 28 keV DC electron beam up to the peak surface power density required for PXIE, 17W/mm2. Temperatures and flow parameters were measured and compared to analysis. This paper describes the absorber prototypes and key testing results.
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