Energy loss estimates at several beam intensities in the Fermilab Booster

MacLachlan, Xi Yang and James

Fermi National Accelerator Laboratory

关键词: Calibration;    43 Particle Accelerators;    Magnetic Fields;    Fermilab;   

DOI  :  10.2172/824991
RP-ID  :  FERMILAB-TM-2244
RP-ID  :  AC02-76CH03000
RP-ID  :  824991

美国|英语

来源: UNT Digital Library

【 摘 要 】

The difference between the effective rf voltage and the accelerating voltage required to match the rate of change of the Booster magnetic field can be used to estimate the energy loss per beam turn. Although the effective rf voltage (RFSUM) and the synchronous phase can be experimentally measured and used to calculate the accelerating voltage, the calibration of the signals during the fast change of the Booster rf frequency is difficult and appears to introduce some offset to the beam energy loss estimation. An observed linear relationship between energy loss and beam intensity is used to evaluate the offset, which is then applied to the experimental data. This approach, rather than recalibrating the signals, is simple and suitable for minimizing the error in the data.