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Title: High-energy gamma-ray beams from Compton-backscattered laser light

Technical Report ·
DOI:https://doi.org/10.2172/6442673· OSTI ID:6442673

Collisions of light photons with relativistic electrons have previously been used to produce polarized ..gamma..-ray beams with modest (-10%) resolution but relatively low intensity. In contrast, the LEGS project (Laser + Electron Gamma Source) at Brookhaven will produce a very high flux (>2 x 10/sup 7/ s/sup -1/) of background-free polarized ..gamma.. rays whose energy will be determined to a high accuracy (..delta..E = 2.3 MeV). Initially, 300(420)-MeV ..gamma.. rays will be produced by backscattering uv light from the new 2.5(3.0)-GeV X-ray storage ring of the National Synchrotron Light Source (NSLS). The LEGS facility will operate as one of many passive users of the NSLS. In a later stage of the project, a Free Electron Laser is expectred to extend the ..gamma..-ray energy up to 700 MeV.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
6442673
Report Number(s):
BNL-32874; CONF-830311-88; ON: DE83010443
Resource Relation:
Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English