Title :
Properties of a Large NaI(Tl) Spectrometer for the Energy Measurement of High-Energy Gamma Rays on the Gamma Ray Observatory
Author :
Hughes, E.B. ; Finman, L.C. ; Hofstadter, R. ; Lepetich, J.E. ; Lin, Y.C. ; Mattox, J.R. ; Nolan, P.L. ; Parks, R. ; Walker, A.H.
Author_Institution :
Hansen Laboratories of Physics and Department of Physics Stanford University, Stanford, CA 94305
Abstract :
A large NaI(Tl) spectrometer is expected to play a crucial role in the measurement of the energy spectra from an all-sky survey of high-energy celestial gamma rays on the Gamma Ray Observatory. The crystal size and requirements of space flight have resulted in a novel crystal-packaging and optics combination. The structure of this spectrometer and the operating characteristics determined in a test program using high energy positrons are described.
Keywords :
Energy measurement; Extraterrestrial measurements; Gamma rays; Observatories; Packaging; Physics; Positrons; Spectroscopy; Telescopes; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1986.4337202
