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Title: Synchrotron radiation based beam diagnostics at the Fermilab Tevatron

Synchrotron radiation has been used for many years as a beam diagnostic at electron accelerators. It is not normally associated with proton accelerators as the intensity of the radiation is too weak to make detection practical. Therefore, if one utilizes the radiation originating near the edge of a bending magnet, or from a short magnet, the rapidly changing magnetic field serves to enhance the wavelengths shorter than the cutoff wavelength, which for more recent high energy proton accelerators such as Fermilab's Tevatron, tends to be visible light. This paper discusses the implementation at the Tevatron of two devices. A transverse beam profile monitor images the synchrotron radiation coming from the proton and antiproton beams separately and provides profile data for each bunch. A second monitor measures the low-level intensity of beam in the abort gaps which poses a danger to both the accelerator's superconducting magnets and the silicon detectors of the high energy physics experiments. Comparisons of measurements from the profile monitor to measurements from the flying wire profile systems are presented as are a number of examples of the application of the profile and abort gap intensity measurements to the modelling of Tevatron beam dynamics.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Publication Date:
OSTI Identifier:
1027948
Report Number(s):
FERMILAB-PUB--11-419-AD
Journal ID: ISSN 1748-0221; arXiv eprint number arXiv:1109.3505; TRN: US1105309
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 6; Journal Issue: 09; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATORS; ANTIPROTON BEAMS; BEAM DYNAMICS; BEAM PROFILES; BENDING; DETECTION; ELECTRONS; FERMILAB TEVATRON; HIGH ENERGY PHYSICS; IMPLEMENTATION; MAGNETIC FIELDS; MONITORS; PROTONS; RADIATIONS; SILICON; SUPERCONDUCTING MAGNETS; SYNCHROTRON RADIATION; WAVELENGTHS instrumentation; beam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons)