Spectra of Neutrons and Gamma Rays from (Po-Be) and (Po-B) Sources Measured in (n, γ) Coincidence
Creators
- 1. Fiziko-Energeticheskij Institut, Obninsk, SSSR (Russian Federation)
Description
The authors present the energy spectra of neutrons and the recorded spectra of gamma rays from (Po-Be) and (Po-B) sources measured by a system of fast-slow coincidences. For the neutron detector, they used a single-crystal fast-neutron scintillation spectrometer with discrimination of gamma rays during de-excitation. A single-crystal scintillation spectrometer with a Nal(Tl) crystal was used as the gamma-ray detector. From the experimental results they obtain the energy spectrum of neutrons from the (Po-Be) source without interference by the 4.44-MeV gamma rays, determine the relationship between the neutrons and the 4.44-MeV gamma rays, and demonstrate the possibility of measuring the absolute activity of (Po-Be) sources. The results are compared with those obtained by other authors. (author)
Abstract (Russian)
Privodjatsja jenergeticheskie spektry nejtronov i apparaturnye spektry gamma-luchej (Ro - Be) - i (Ro - V)-istochnikov, izmerennye s pomoshh'ju sistemy bystro-medlennyh sovpadenij. Detektorom nejtronov sluzhil odnokristal'nyj scintilljacionnyj spektrometr bystryh nejtronov s diskriminaciej gamma- luchej po vremeni vysvechivanija. Detektorom gamma-luchej sluzhil odnokristal'nyj scintilljacionnyj spektrometr s kristallom NaJ(Tℓ). Iz rezul'tatov jeksperimenta poluchen jenergeticheskij spektr nejtronov (Ro - Be) -istochnika, ne soprovozhdaemyj gamma-luchami 4,44 Mjev, opredeleno sootnoshenie mezhdu nejtronami i gamma-luchami s Eγ =4,44 Mjev, pokazana vozmozhnost' izmerenija absoljutnoj aktivnosti istochnikov (Ro - Be). Rezul'taty jeksperimentov sravnivajutsja s dannymi drugih rabot. (author)Additional details
Additional titles
- Original title (Russian)
- Спектры нейтронов и гамма-лучей (Ро - Бе) и (Ро - В)-источников, измеренные в (п-у)-совпадениях
Publishing Information
- Publisher
- IAEA
- Imprint Place
- Vienna (International Atomic Energy Agency (IAEA))
- Imprint Title
- Neutron Monitoring. Proceedings of the Symposium on Neutron Monitoring for Radiological Protection
- Imprint Pagination
- 724 p.
- Series
- Proceedings Series
- Journal Page Range
- p. 201-207
- ISSN
- 0074-1884
Conference
- Title
- Symposium on Neutron Monitoring for Radiological Protection
- Dates
- 29 Aug - 2 Sep 1966
- Place
- Vienna (Austria)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44073810
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S61: RADIATION PROTECTION AND DOSIMETRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DE-EXCITATION; ENERGY SPECTRA; FAST NEUTRONS; GAMMA RADIATION; MONOCRYSTALS; NEUTRON DETECTORS; SCINTILLATIONS; SPECTROMETERS
- Descriptors DEC
- BARYONS; CRYSTALS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; FERMIONS; HADRONS; IONIZING RADIATIONS; MEASURING INSTRUMENTS; NEUTRONS; NUCLEONS; RADIATION DETECTORS; RADIATIONS; SPECTRA
Optional Information
- Notes
- 8 refs., 5 figs.
- Secondary number(s)
- IAEA-SM--76/52