Calibration Techniques for Neutron Personal Dosimetry

Eisenhauer, C.M.; Hunt, James B.; Schwartz, R. B.

doi:10.1093/oxfordjournals.rpd.a079410

Cited by 47 publications

(19 citation statements)

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“…Neutron spectra obtained in function of the source-to-detector distance on the bench show the presence of epithermal and thermal neutrons mainly produced when the source's neutrons collide with the ceiling, floor and walls of the hall returning back to the room after being moderated and thermalized (Eisenhauer et al, 1985;Vega-Carrillo et al, 2007a, 2007b.…”

Section: Discussionmentioning

confidence: 99%

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Neutron features at the UPM neutronics hall

Vega-Carrillo

Gallego

Lorente

et al. 2012

Applied Radiation and Isotopes

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HIGHLIGHTS• Neutron spectra and ambient dose equivalent, of a neutronics hall has been estimated.• Using Monte Carlo methods a detailed model of the hall and the new Al-made measuring bench were used to estimate neutron spectra and H*(10).• Neutron spectra were measured using a Bonner sphere spectrometer along the measuring bench, neutron spectra were used to estimate the H* (10) and to calculate the total fluence rate.• H*(10) was also measured using the neutron area monitor LB 6411 and compared with values obtained in the Monte Carlo calculations.• Total fluence rate was fitted to the semiempirical model. ABSTRACTThe neutronics hall of the Nuclear Engineering Department at the Polytechnical University of Madrid has been characterized. The neutron spectra and the ambient dose equivalent produced by an 241 AmBe source were measured at various source-to-detector distances on the new bench. Using Monte Carlo methods a detailed model of the neutronics hall was designed, and neutron spectra and the ambient dose equivalent were calculated at the same locations where measurements were carried out. A good agreement between measured and calculated values was found.

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Section: Discussionmentioning

confidence: 99%

“…The total fluence values, in function of the source-to-detector distance, were fitted to the semi-empirical model (Hunt and Kluge, 1985;Eisenhauer et al, 1985) shown in Eq. (3).…”

Section: H*(\0) = Jhl(e)$ E (E)dementioning

confidence: 99%

Neutron features at the UPM neutronics hall

Vega-Carrillo

Gallego

Lorente

et al. 2012

Applied Radiation and Isotopes

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“…Для Pu-Be-источников используется конус, состоящий из двух секций: из железа длиной 20 см, и из борированного полиэтилена длиной 30 см [1,9]. На рисунке 10 изображена схема применения теневого конуса.…”

Section: результаты и их обсуждениеunclassified

“…При проведении испытаний средств изме-рений нейтронного излучения широко исполь-зуются радионуклидные источники быстрых нейтронов [1,2]. В метрологическом обеспече-нии средств измерений нейтронного излучения в качестве эталонов широкое распространение получили установки с полем излучения, созда-ваемым радионуклидными источниками нейтро-нов.…”

Section: Introductionunclassified

“…В общем случае для коллимированной геоме-трии значение величины плотности потока или амбиентного эквивалента мощности дозы можно представить как сумму вкладов от трех источни-ков: от прямого излучения источника нейтронов, размещенного в начале координат (центр источ-ника); от источника, характеризующего рассеян-ное в контейнере-коллиматоре излучение; от рас-пределенного источника рассеянного в помеще-нии излучения [1,7]. Измерения характеристик нейтронного поля установки могут быть прове-дены в ограниченном числе точек, а в остальных точках используется метод Монте-Карло [8].…”

Section: Introductionunclassified

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