CALIBRATION OF THE BEVATRON BEAM-INDUCTION ELECTRODES
Three sets of electric-induction electrodes are used in the Bevatron to yield measures of the quantity of charge in the bunched proton beam. This report considers a refined calibration of these electrodes. It is shown that the quantity of charge in the beam may be obteined directly by measuring the amplitude of the first-harmonic component of the voltage pulses resulting from charge induced on the electrode by thc circulating beam. Although changes in the configuration of the induced voltage pulse alter the phase and magnitude of the harmonic content, it is shown that the ratio of the first-harmonic component to the average value is essentially unaffected. Fourier analyses of typical beam- pulse wave forms indicate that it is possible to determine the beam charge to within 2% at any beam energy by measuring the amplitude of the first-harmonic component of the voltage pulse. Electronic equipment is provided that measures the beam charge to within less than plus or minus 4%. (auth)
- Research Organization:
- California Univ., Berkeley, CA (US). Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-12-008789
- OSTI ID:
- 4322009
- Report Number(s):
- UCRL-8092
- Country of Publication:
- United States
- Language:
- English
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