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Measurements of the electron beam size at the absorber prototype test bench

Document #:
Project X-doc-1100-v2
Document type:
technical note
Submitted by:
Lionel R Prost
Updated by:
Alexander Shemyakin
Document Created:
10 Sep 2012, 09:52
Contents Revised:
03 Oct 2012, 07:49
DB Info Revised:
03 Oct 2012, 07:49
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The PXIE MEBT chopper requires a beam absorber capable to withstand the beam power (20 kW) deposited onto its surface nearly continuously (DF ~ 80%).
A test bench using an electron beam to validate the absorber design choices has been devised and built. This paper presents the procedure(s) established to properly measure the electron beam size (hence the beam power density) before meaningful absorber tests can be carried on.
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