00000nam 2200000zi 4500 9.954229 CaOODSP 20250922124455 m o d f cr bn||||||||| 250819e199411 oncad bt f0|||| eng d CaOODSP eng rda CaOODSP eng eng fre n-cn--- DR52-17/60-1994E-PDF Pepper, Gary T. (Gary Thomas), 1958- author. Neutron, electron and gamma-ray radiation responses of a fast P-I-N photodiode / by G.T. Pepper, S.M. Khanna and R.E. Stone. Ottawa : Defence Research Establishment Ottawa, November 1994. 1 online resource (xv, 42 pages) : illustrations, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier DREO report ; no. 1237 Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (pages 38-39). "This work is an experimental investigation of radiation-induced changes in the electrical characteristics of the MRD500 P-I-N photodiode, due to various fluences and energies of neutrons, electrons and gamma-rays. Analyses of changes in MRD500 forward bias current-voltage (I-V) characteristics, as a function of fission spectrum neutron fluence (reported as 1 MeV equivalent), indicate that the device can serve as a neutron fluence monitor, useable well beyond the range of the widely-used Harshaw DN-156 P-I-N diode fluence monitors. Furthermore, experimentally-determined changes in MRD500 forward voltage, ΔVf(ϕ), (at constant If and constant temperature) as a function of various energies and fluences of neutrons, electrons and gamma-rays, demonstrate the potential usefulness of the MRD500 as a displacement damage monitor.In this study, fission neutrons (1 MeV equivalent), 7.5 MeV (average energy) electrons and 1.25 MeV (average energy) gamma-rays are used to investigate the effectiveness of these radiations in producing displacement damage in the MRD500. The device physics responsible for the radiation-induced changes in the electrical characteristics of the diode is also discussed"--Abstract, page iii. Includes abstracts in English and French. Radiation. Photodiodes. Rayonnement. Photodiodes. Defence Research Establishment Ottawa, issuing body. Canada. Department of National Defence, issuing body. DREO report ; no. 1237. (CaOODSP)9.941661 PDF 1.97 MB https://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-17-60-1994-eng.pdf