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Title: Defects induced by protons and {gamma}-rays in semi-insulating GaAs detectors

Book ·
OSTI ID:99472
;  [1];  [1];  [2]; ;  [3];  [3];  [4];  [5]
  1. Dipartimento di Fisica, Bologna (Italy)
  2. FRAE-CNR, Bologna (Italy)
  3. Facolta di Ingegneria, Modena (Italy)
  4. Istituto di Elettrotecnica, Cagliari (Italy)
  5. ALENIA S.p.A., Roma (Italy)

Semi-insulating gallium arsenide has been irradiated by protons and by gamma-rays with different doses. The irradiation-induced deep level defects have been investigated by current transient spectroscopy to find their energy, capture cross sections and generation rate. Two electron traps at E{sub c}{minus}0.14V(E13) and E{sub c}{minus}0.70eV(E4) and a hole trap at E{sub v}+0.41eV(H2) in addition to the levels existing before the irradiation have been detected in the irradiated samples. These findings have been related to the performance of gallium arsenide charge particle detectors.

OSTI ID:
99472
Report Number(s):
CONF-941144-; ISBN 1-55899-275-8; TRN: 95:019130
Resource Relation:
Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: 1995; Related Information: Is Part Of Microstructure of irradiated materials; Robertson, I.M. [ed.] [Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering]; Rehn, L.E. [ed.] [Argonne National Lab., IL (United States). Materials Science Div.]; Zinkle, S.J. [ed.] [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.]; Phythian, W.J. [ed.] [AEA Technology-Harwell, Oxon (United Kingdom)]; PB: 588 p.; Materials Research Society symposium proceedings, Volume 373
Country of Publication:
United States
Language:
English