NEUTRON EXPOSURE DOSIMETRY OF HUMANS BY IN VIVO GAMMA MEASUREMENT OF SODIUM- 24
Technical Report
·
OSTI ID:4211993
A procedure for neutron dosimetry of humans by in vivo gamma spectrometric measurement of the sodium-24 content of the human body is described. Specific calibration of the 9-inch-diameter x 4-inch-thick NaI scintillation crystal of the Y-12 In Vivo Radioactivity Measurement Facility for bedy sodium-24 is included. The apparent limit of detection, at an examination rate of one subject each fifteen to twenty minutes is 2.5 x 10/sup -3/ mu c sodium-24 in the body. The relationship of body sodium-24 to neutron dose is made on the basis of the 1958 Y-12 criticality accident and results in an apparent limit of detection of 12.5 millirads if the sodium-24 measurement is made within fifteen hours after neutron exposure. (auth)
- Research Organization:
- Union Carbide Nuclear Co. Y-12 Plant, Oak Ridge, Tenn.
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-14-009669
- OSTI ID:
- 4211993
- Report Number(s):
- Y-1283
- Country of Publication:
- United States
- Language:
- English
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