A new antiproton beam transfer scheme without coalescing

Author

Chou, W. ; Griffin, J. ; MachLachlan, J. ; Werkema, S.

Author_Institution

Fermi Nat. Accel. Lab., USA

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1554

Abstract

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.

Keywords

accelerator RF systems; particle beam bunching; particle beam dynamics; proton accelerators; proton beams; 2.5 MHz; 53 MHz; ESME simulations; Fermilab Tevatron collider; RF bucket; RF system; accumulator; antiproton beam transfer; antiproton coalescing; antiproton transfer efficiency; bunch rotation; emittance dilution; luminosity; main injector; Acceleration; Frequency conversion; Hardware; Radio frequency; Sliding mode control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288592

Filename

1288592