The scanning Compton polarimeter for the SLD experiment

Conference · Tue Oct 01 00:00:00 EDT 1996

OSTI ID:486198

Woods, M

For the 1994/95 run of the SLD experiment at SLAC, a Compton polarimeter measured the luminosity-weighted electron beam polarization to be (77.2 {+-} 0.5)%. This excellent accuracy is achieved by measuring the rate asymmetry of Compton-scattered electrons near the kinematic endpoint. The polarimeter takes data continuously while the electron and positron beams are in collision and achieves a statistical precision of better than 1% in a three minute run. To calibrate the polarimeter and demonstrate its accuracy, many scans are frequently done. These include scans of the laser polarization, the detector position with respect to the kinematic edge, and the laser power.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 486198
• Report Number(s): SLAC-PUB-7319; CONF-960999-2; ON: DE97007632; TRN: 97:011338
• Resource Relation: Conference: Workshop on polarized electron sources and low-energy polarimeters, Amsterdam (Netherlands), 6-7 Sep 1996; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
43 PARTICLE ACCELERATORS
STANFORD LINEAR COLLIDER DETECTOR
POLARIMETERS
ELECTRON BEAMS
ACCURACY
CALIBRATION
POLARIZED BEAMS
PHOTON BEAMS
COMPTON EFFECT