Offset calibration of the beam position monitor using external means

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6061429

Chung, Y; Decker, G

Determination of the offset of the electrical center of the beam position monitor (BPM) relative to the mechanical center is required for the absolute beam position measurement in the injector synchrotron and the storage ring of the APS. Conventionally, RF signal is sent to an antenna or through a wire carefully aligned in the vacuum chamber and the signal is measured at each electrode. A new method using only external means which does not involve mechanical alignment inside the vacuum chamber was applied to the injector synchrotron BPM unit in this work. The result shows a good agreement with the wire method within 15 {mu}m error. A similar measurement on the storage ring BPM will also be discussed.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6061429
• Report Number(s): ANL/CP-74952; CONF-9110118--4; ON: DE92005232
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM MONITORS
BEAM POSITION
CALIBRATION
MEASURING INSTRUMENTS
MONITORS
RADIATION SOURCES
SPECIFICATIONS
STORAGE RINGS
SYNCHROTRON RADIATION SOURCES