The use of hydrogenous material for sensitizing pMOS dosimeters to neutrons

Journal Article · Wed Feb 01 00:00:00 EST 1995 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.364877· OSTI ID:46127

Kronenberg, S ^[1]; Brucker, G J ^[2]

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1. Army, Fort Monmouth, NJ (United States)
2. Brucker (G.J.), West Long Branch, NJ (United States)

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{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.

• OSTI ID: 46127
• Journal Information: IEEE Transactions on Nuclear Science, Vol. 42, Issue 1; Other Information: PBD: Feb 1995
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
NEUTRON DOSIMETRY
DOSEMETERS
DESIGN
MOS TRANSISTORS
EXPERIMENTAL DATA
FEASIBILITY STUDIES
MATERIALS