The 848-8 Series of field test sources are portable, self-contained fixtures for on-site testing of area monitors. A sealed radiation source, combined with repeatable location of source and detector in the fixture, assures the consistency of the results. The source is encapsulated in welded stainless steel and secured inside a rotating section of the source shield. By rotating the section, one can bring the source to a position where radiation from the source passes through an exit hole in the shield to irradiate the detector. The rotating section is spring loaded to return to the closed position, and the mechanical interlocks prevent removal of the detector until the rotating section is in the closed position. These safeguards help to minimize the operatorâs exposure to radiation.
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848-8 Test Sources