A Proton-Recoil Proportional-Counter Array for Neutron-Image Construction
| Autor: | C. L. Fink, A. DeVolpi, J. J. Eichholz |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Physics
Nuclear and High Energy Physics Discriminator Physics::Instrumentation and Detectors business.industry Detector Proportional counter Dead time Particle detector Optics Nuclear Energy and Engineering Hodoscope Rise time Electronic engineering Neutron detection Electrical and Electronic Engineering Nuclear Experiment business |
| Zdroj: | IEEE Transactions on Nuclear Science. 32:380-383 |
| ISSN: | 0018-9499 |
| DOI: | 10.1109/tns.1985.4336859 |
| Popis: | The fuel-motion measurement capability of the fast-neutron hodoscope has been upgraded by the addition of a 360-detector proton-recoil proportional-counter array, which detects high-energy fission neutrons. The current sensitive amplifier/discriminator module for each detector fits into a 12.7- by 12.7- by 102-mm package and costs less than $100 per module. It has a 50-ns rise time, a noise level of 100 nA, and a deadtime per event of 200 ns. Provision has been provided for the independent adjustment of the input current versus discriminator voltage for each module. The new proportional-counters cost approximately $400 each. Each detector has been tested to have the same gain versus voltage response. A space-charge model relating count-rate changes to space-charge effects has also been developed. The new detector array has been operational for approximately two years and has become the main detector system in fuel-motion analysis. It has significantly improved the linearity, stability, count-rate capability, and setup ease of the hodoscope. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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