Measurements of Beam Momentum at the Stacking Energy of the Accumulator

Werkema, Steve

Fermi National Accelerator Laboratory

关键词: Beam Position;    43 Particle Accelerators;    Tanks Accelerators;    Accelerators;    Antiproton Sources;   

DOI  :  10.2172/984588
RP-ID  :  FERMILAB-PBAR-NOTE-646
RP-ID  :  AC02-07CH11359
RP-ID  :  984588

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来源: UNT Digital Library

【 摘 要 】

The momentum and orbit length of beam on the central and extraction orbits of the Antiproton Source Accumulator are calculated from measurements of revolution frequency and transverse beam position. This report gives the results of measurements made at the stacking energy before and after the 1998-99 Accumulator lattice upgrade. Before the lattice upgrade, the Accumulator central orbit length and momentum are measured to be: L{sub c} = 474.0433 {+-} 0.0025 m, p{sub c} = 8819.5 {+-} 4.1 MeV/c. After the lattice upgrade the central orbit length and momentum are measured to be: L{sub c} = 474.0532 {+-} 0.0016 m, p{sub c} = 8803.4 {+-} 2.7 MeV/c. The extraction orbit length and momentum prior to the lattice upgrade are measured to be: L{sub e} = 474.1916 {+-} 0.0054 m, p{sub e} = 8900.8 {+-} 9.2 MeV/c. After the lattice upgrade the extraction orbit length and momentum are measured to be: L{sub e} = 474.1599 {+-} 0.0036 m, p{sub e} = 8886.3 {+-} 6.1 MeV/c.