M. R. Shaneyfelt

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-Improvements have been made at TRIUMF to permit higher proton intensities of up to 10 cms over the energy range 20-500 MeV. This improved capability enables the study of displacement damage effects that require higher fluence irradiations. In addition, a high energy neutron irradiation capability has been developed for terrestrial cosmic ray soft error(More)
This report describes an LDRD-supported experimental-theoretical collaboration on the enhanced low-dose-rate sensitivity (ELDRS) problem. The experimental work led to a method for elimination of ELDRS, and the theoretical work led to a suite of bimolecular mechanisms that explain ELDRS and is in good agreement with various ELDRS experiments. The model shows(More)
Silicon-on-insulator (S01) technology exhibits three main advantages over bulk silicon technology for use in radiation environments. (1) SOI devices are immune to Iatchup, (2)the volume of the sensitive region (body) and hence total charge collection per transient irradiation is much reduced in SOI devices and (3) the insulating layer blocks charge(More)
The amounts of charge collection by single-photon absorption (SPA) and by two-photon absorption (TPA) laser testing techniques have been directly compared using specially made SOI diodes. For SPA measurements and some TPA measurements, the back substrates of the diodes were removed by etching in XeF2. With the back substrates removed, the amount of TPA(More)
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