ALPHA GAUGE FOR THE MEASUREMENT OF SMALL DENSITY THICKNESSES
An alpha-particle gage was developed based on a transmission, total- count principle. In consists of a thick alpha source and a surface-barrier detector. This simple combination eliminates many of the practical disadvantages of previous alpha-gage systems. Without mechanical or electronic adjustment, air density can be measured with a 1-sec time constant over the range from 0 to 1.1 mg/cm/sup 3/ with a maximum standard deviation of 5.9 x 10/sup -4/ mg/cm/sup 3/. (auth)
- Research Organization:
- Oak Ridge Inst. of Nuclear Studies, Tenn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-006422
- OSTI ID:
- 4751240
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 33
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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