A SENSITIVE GAMMA SCINTILLATION TRANSISTORIZED MONITOR
A sensitive gamma monitor was designed with a firstrange full scale sensitivity of 0.015 mr/hr or 10,000 C/M. Rangc two and range three are 100,000 and l,000,000 C/M, respectively. Thc complete instrument (including probe) weighs 17 pounds excluding the chart recorder. The instrument employs a 5-inch diameter phototube and a 5 x 5-inch NE-l02 terphenyl-inpolyvinyltoluene crystal. All circuits are transistorized and are of the plug-ins unitized construction type. The instrument will drive a standard one milliampere chart recorder. The batteries employed will continuously operate the instrumcnt for 150 hours. The complete instrument was temperature-tested from minus 20 to plus 140 F with no malfunctioning and with a reading error of about 6.0 per cent. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- W-31-109-ENG-52
- NSA Number:
- NSA-13-014443
- OSTI ID:
- 4246700
- Report Number(s):
- HW-57507
- Country of Publication:
- United States
- Language:
- English
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