A BLAST WAVE DENSITY GAUGE USING BETA-RADIATION
A gage was designed to determine the gas density in blast waves by recording the attenuation of BETA rays from erbium-169 using a compact detector unit and transistor amplifier. The output signal is transmitted over several thousand feet of coaxial cable and recorded as an f-m signal on magnetic tape. Voltage and density calibration units are described. The gage was used to study blast waves in the 60to 5 lb in.-2 over-pressure region, and some results are presented. The present accuracy of about plus or minus 10% may be improved by using a source of greater activity and by strengthening the mounting system to prevent slight changes of the source-detector geometry. (auth)
- Research Organization:
- Suffield Experimental Station, Ralston, Alberta, Can.
- NSA Number:
- NSA-18-008618
- OSTI ID:
- 4128927
- Journal Information:
- J. Sci. Instr., Vol. Vol: 40; Other Information: Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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