EFFECT OF ION RECOMBINATION LUMINESCENCE ON THE LINEARITY OF ENERGY RESPONSE OF GAS SCINTILLATION COUNTERS
The presence of columnar electron-ion recombination luminescence, from alpha particles and fission fragments in an argon gas scintillation counter having a few percent N/sub 2/ as waveshifter, is established. A decrease in luminescence yield with applied electric field indicates a loss of recombination luminescence by ion collection. For a U/sup 235/ fission counter at two atomspheres pressure, a reduction in mean scintillation pulse height of 40% for fission fragments and 3% for background U/sup 234/ alphas results at 1200 v/cm. It is concluded that columnar electron-ion recombination luminesence accounts for the considerable nonlinearity of energy response observed in gas scintillation counters for heavily ionizing particles. (auth)
- Research Organization:
- Univ. of Tasmania, Hobart, Australia
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-007728
- OSTI ID:
- 4802429
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 32
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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