An absolute measurement of the efficiency of a BF3 proportional counter

Autor:	T. E. Sampson, Dietrich H. Vincent
Rok vydání:	1971
Předmět:	Physics Range (particle radiation) Physics::Instrumentation and Detectors Proportional counter General Medicine Well counter Neutron temperature law.invention Absolute measurement law Neutron flux Neutron detection Irradiation Atomic physics
Zdroj:	Nuclear Instruments and Methods. 95:563-569
ISSN:	0029-554X
DOI:	10.1016/0029-554x(71)90560-x
Popis:	We report an absolute measurement of the efficiency of a BF 3 counter in narrow beam geometry in the energy range frame 0.024 eV to 0.111 eV. Agreement with calculated efficiency values is excellent. No significant end effects are noted. The basic feature of this experiment is the measurement of the incident neutron flux by gold foil activation and counting in an NaI well counter which was calibrated with gold foils irradiated in the National Bureau of Standards Standard Thermal Neutron Flux.
Databáze:	OpenAIRE
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