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A method of obtaining parasitic e[sup +] or e[sup [minus]] beams during SLAC linear collider operation

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6884805
; ;  [1]; ; ; ; ; ; ; ; ; ;  [2]; ;  [3]
  1. Univ. of California, Santa Cruz, CA (United States). Santa Cruz Inst. for Particle Physics
  2. Stanford Univ., CA (United States). Stanford Linear Accelerator Center
  3. American Univ., Washington, DC (United States)
The authors have developed a technique that allows SLAC to provide parasitic low-intensity secondary e[sup +] and e[sup [minus]] beams up to 25 GeV to End Stations A and B and to the FFTB during SLC operation. This beam was successfully used for a one-month-long experimental run in End Station A by the SLAC E-146 collaboration. The experiments used 400 MeV to 25 GeV electron beams at intensities averaging one electron per pulse and 120 pulses per second. The method for producing such a beam without the need for dedicated beam time was to operate parasitically from SLC: photons produced in the SLC beam scrapers in linac sectors 28, 29 and 30 were converted to positrons and electrons in a target downstream from the SLC splitter magnet. The secondary electrons or positrons were then transported to ESA with the A-line.
DOE Contract Number:
AC03-76SF00515; W-7405-ENG-48
OSTI ID:
6884805
Report Number(s):
CONF-931051--
Conference Information:
Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:4Pt1
Country of Publication:
United States
Language:
English