Simplified fast neutron dosimeter

Details Simplified fast neutron dosimeter Simplified fast neutron dosimeter

1975-12-08

1979-06-05

Borchelt, Archie R.

Radiant energy

Invisible radiation responsive nonelectric signalling

Methods

250391, 250472, G01T 502, G01T 300

Patent

active

041574737

ABSTRACT:
Direct fast-neutron-induced recoil and alpha particle tracks in polycarbonate films may be enlarged for direct visual observation and automated counting procedures employing electrochemical etching techniques. Electrochemical etching is, for example, carried out in a 28% KOH solution at room temperature by applying a 2000 V peak-to-peak voltage at 1 kHz frequency. Such recoil particle amplification can be used for the detection of wide neutron dose ranges from 1 mrad. to 1000 rads. or higher, if desired.

REFERENCES:
patent: 3509339 (1970-04-01), Doehner
patent: 3529157 (1970-09-01), Johnston et al.
patent: 3612871 (1971-10-01), Crawford et al.
patent: 3663815 (1972-05-01), Cross et al.
patent: 3852134 (1974-12-01), Bean

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