A Main Ring bunch length monitor by detecting two frequency components of the beam

Technical Report · Fri Jun 02 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/5757593· OSTI ID:5757593

Ieiri, T; Jackson, G

The bunch length is measured by detecting two revolution frequency harmonics of the beam and taking the ratio of their amplitudes. Two heterodyne receivers have been made to direct them, one at 53MHz and the other at 159MHz. These signals are picked-up by a stripline detector. An analog circuit provides a signal proportional to the bunch length. The monitor measures variation of the bunch length as a function of time in the Main Ring. The measured signal, which sometimes shows that the bunches are tumbling in phase space, can be damped by feedback to the RF amplitude modulator. 9 refs., 12 figs., 1 tab.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (USA)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 5757593
• Report Number(s): FNAL-TM-1600; ON: DE89014016
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
BEAM BUNCHING
BEAM DYNAMICS
BEAM MONITORS
DESIGN
ELECTRONIC EQUIPMENT
EQUIPMENT
HETERODYNE RECEIVERS
MATHEMATICAL SPACE
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
MONITORS
PERFORMANCE
PHASE SPACE
RADIO EQUIPMENT
SPACE