Beams Document 633-v1

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A New Antiproton Beam Transfer Scheme without Coalescing

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Weiren Chou
Updated by:
Weiren Chou
Document Created:
28 May 2003, 20:47
Contents Revised:
28 May 2003, 20:47
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28 May 2003, 20:47
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An effective way to increase the luminosity in the Fermilab Tevatron collider program Run2 is to improve the overall antiproton transfer efficiency. During antiproton coalescing in the Main Injector (MI), about 10-15% particles get lost. This loss could be avoided in a new antiproton transfer scheme that removes coalescing from the process. Moreover, this scheme would also eliminate emittance dilution due to coalescing. This scheme uses a 2.5 MHz RF system to transfer antiprotons from the Accumulator to the Main Injector. It is then followed by a bunch rotation in the MI to shorten the bunch length so that it can be captured by a 53 MHz RF bucket. Calculations and ESME simulations show that this scheme works. No new hardware is needed to implement this scheme.
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PAC 2003 held from 12 May 2003 to 16 May 2003 in Portland, Oregon
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