MEASURING REACTOR NEUTRON SPECTRA WITH THRESHOLD DETECTORS
Technical Report
·
OSTI ID:4148517
The use of threshold detector foils to measure the external neutron spectrum of the Livermore Pool Type Reactor and the KEWB Reactor is described. The foils employed are Pu/sup 239/ to measure the total fast flux, U/sup 238/for the region above l.5 Mev, S/sup 32/ above 2.5 Mev, and Au/sup 197/ for thermal neutrons. Scintillation counters are used to determine the activity induced in the detectors. The foil-counting system is calibrated by using a Cockcroft- Walton accelerator as a fast neutron source. The results indicate a fission type spectrum at each reactor. (auth)
- Research Organization:
- California. Univ., Livermore. Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-15-002806
- OSTI ID:
- 4148517
- Report Number(s):
- UCRL-6089
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACTIVATION
COCKCROFT-WALTON ACCELERATORS
ENGINEERING AND EQUIPMENT
FAST NEUTRONS
FOILS
GOLD 197
KEWB
MEASURED VALUES
NEUTRON DETECTION
NEUTRON FLUX
NEUTRON SPECTROMETERS
PLUTONIUM 239
POOL TYPE REACTOR
RADIATION DETECTORS
REACTORS
RESEARCH REACTORS
SCINTILLATION COUNTERS
SULFUR 32
SWIMMING POOL
THERMAL NEUTRONS
THRESHOLD DETECTORS
URANIUM 238
WATER COOLANT
COCKCROFT-WALTON ACCELERATORS
ENGINEERING AND EQUIPMENT
FAST NEUTRONS
FOILS
GOLD 197
KEWB
MEASURED VALUES
NEUTRON DETECTION
NEUTRON FLUX
NEUTRON SPECTROMETERS
PLUTONIUM 239
POOL TYPE REACTOR
RADIATION DETECTORS
REACTORS
RESEARCH REACTORS
SCINTILLATION COUNTERS
SULFUR 32
SWIMMING POOL
THERMAL NEUTRONS
THRESHOLD DETECTORS
URANIUM 238
WATER COOLANT