Appendix A
Type of Instrument
The I™ is a Spectroscopic Personal Radiation Detector (SPRD).
It is sensitive to gamma radiation and (optionally) thermal neutrons. It will
measure and record gamma dose rate and neutron count rate.
It uses three Cadmium-Zinc-Telluride (CZT) detectors for the detection and
identification of gamma radiation and one
3
He proportional counter for the
detection of thermal neutrons.
The instrument has an operating mode which automatically allows identify-
ing specific radioactive isotopes listed in its internal library. Detailed specifica-
tions are outlined in the next appendix.
Thermo Fisher Scientific Interceptor™/en/5.1(4956)/Feb2010 115
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