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

Conference · Mon Nov 01 04:00:00 EST 1993

OSTI ID:10114849

Cavalli-Sforza, M; Kelley, L A; Klein, S R ^[1]

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1. California Univ., Santa Cruz, CA (United States). Inst. for Particle Physics; and others

We 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 experiment 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 e{sup {minus}} (or e{sup +}) were then transported to ESA with the A-line.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 10114849
• Report Number(s): SLAC-PUB--6387; CONF-931107--31; ON: DE94005227; CNN: NSF-PHY-9113428; NSF-PHY-9114958
• Country of Publication: United States
• Language: English

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