The use of hydrogenous material for sensitizing pMOS dosimeters to neutrons
| Autor: | Stanley Kronenberg, G.J. Brucker |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Nuclear and High Energy Physics
Dosimeter Materials science Physics::Instrumentation and Detectors business.industry Astrophysics::High Energy Astrophysical Phenomena Charged particle Particle detector PMOS logic Threshold voltage Nuclear Energy and Engineering Neutron flux Optoelectronics Neutron detection Neutron Electrical and Electronic Engineering Nuclear Experiment business |
| Zdroj: | IEEE Transactions on Nuclear Science. 42:20-26 |
| ISSN: | 1558-1578 0018-9499 |
| DOI: | 10.1109/23.364877 |
| Popis: | This paper is concerned with the application of pMOS dosimeters to measuring neutron dose by the use of hydrogenous materials to convert incident neutron flux to recoil protons. These latter charged particles can generate electron-hole pairs, and consequently, charge trapping takes place at the MOS interfaces, and threshold voltage shifts are produced. The use of pMOS devices for measuring gamma doses has been described extensively in the literature. Clearly, if measurable voltage shifts could be generated in a MOS device by neutrons, then a radiation detection instrument containing two MOS devices, back to back, with hydrogenous shields, and one MOS dosimeter without a converter would allow 4/spl pi/ measurements of neutron and gamma doses to be made. The results obtained in this study indicate that paraffin or polyethylene will convert incident, 2.82 MeV neutrons to recoil protons, which subsequently cause measurable voltage shifts. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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