RU2011135620A - METHOD FOR SIMULTANEOUS REPRODUCTION OF TASKED VALUES OF NEUTRON FLUENCE AND EXPOSURE DOSE OF GAMMA RADIATION ON RESEARCH REACTOR - Google Patents
METHOD FOR SIMULTANEOUS REPRODUCTION OF TASKED VALUES OF NEUTRON FLUENCE AND EXPOSURE DOSE OF GAMMA RADIATION ON RESEARCH REACTOR Download PDFInfo
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- RU2011135620A RU2011135620A RU2011135620/07A RU2011135620A RU2011135620A RU 2011135620 A RU2011135620 A RU 2011135620A RU 2011135620/07 A RU2011135620/07 A RU 2011135620/07A RU 2011135620 A RU2011135620 A RU 2011135620A RU 2011135620 A RU2011135620 A RU 2011135620A
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Abstract
Способ одновременного воспроизведения заданных значений флюенса нейтронов (Ф) и экспозиционной дозы гамма-излучения (D) на исследовательском реакторе при испытании крупногабаритных объектов на радиационную стойкость, основанный на суперпозиции полей излучений от реактора и специальных устройств, конвертирующих тепловые нейтроны в гамма-кванты, расположенных вне сектора прямого воздействия излучений реактора симметрично нормали, проходящей от центра активной зоны (AЗ) на продольную ось объекта испытаний, и перемещаемых во время испытаний вдоль объекта, отличающийся тем, что в поле излучений с размерами объекта испытаний устанавливают функциональные зависимости отношения экспозиционной дозы гамма-излучения (D) к флюенсу нейтронов (Ф) и флюенса нейтронов, приведенного к одному выходящему из AЗ нейтрону, (В) от длины (L) объекта, толщины (S) и количества (n) конверторов при выбранном варианте их размещения относительно AЗ и объекта испытаний, используя зависимость, выбирают толщину и количество конверторов по критерию обеспечения равенства D/Ф=D/Ф, затем определяют значение параметра В по зависимости B(S, n, L) и рассчитывают длительность (t) облучения объекта по формуле: t=Ф/к·В·Р, где Р - мощность реактора; к - выход нейтронов из AЗ реактора на мощности 1 Вт.A method for simultaneously reproducing the set values of the neutron fluence (F) and the exposure dose of gamma radiation (D) in a research reactor when testing large objects for radiation resistance, based on a superposition of radiation fields from the reactor and special devices that convert thermal neutrons into gamma rays located outside the sector of direct exposure to reactor radiation, it is symmetrical to the normal passing from the center of the active zone (AZ) to the longitudinal axis of the test object, and moved during the test along the object, characterized in that in the radiation field with the dimensions of the test object, the functional dependences of the ratio of the exposure dose of gamma radiation (D) to the neutron fluence (F) and the neutron fluence reduced to one neutron emerging from the AZ, (B) are established from the length (L) the object, the thickness (S) and the number (n) of converters for the selected variant of their placement relative to the AZ and the test object, using the dependence, choose the thickness and number of converters according to the criterion of ensuring equality D / Ф = D / Ф, then determine the value ameter B according to B (S, n, L) and calculate the duration (t) of the irradiation of the object according to the formula: t = Ф / к · В · Р, where Р is the reactor power; k is the neutron yield from the AZ reactor at a power of 1 W.
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RU2011135620/07A RU2497214C2 (en) | 2011-08-29 | 2011-08-29 | Method for simultaneous reproduction of specified values of neutron fluence and exposition dose of gamma radiation on research reactor |
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RU2011135620/07A RU2497214C2 (en) | 2011-08-29 | 2011-08-29 | Method for simultaneous reproduction of specified values of neutron fluence and exposition dose of gamma radiation on research reactor |
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RU2011135620A true RU2011135620A (en) | 2013-03-10 |
RU2497214C2 RU2497214C2 (en) | 2013-10-27 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2686838C1 (en) * | 2018-05-21 | 2019-05-06 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method for simultaneous reproduction of given neutron fluence and exposure dose of gamma radiation at research reactors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2641890C2 (en) * | 2016-05-10 | 2018-01-23 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method of simultaneous reproducing specified neutron fluence values and exposure dose of gamma-radiation in research reactors |
RU2713924C1 (en) * | 2019-10-31 | 2020-02-11 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method of reproducing test standards for large-size objects on research reactors |
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DE69637699D1 (en) * | 1996-11-18 | 2008-11-13 | Kenneth G Moses | METHOD AND DEVICE FOR X-RAY GENERATION |
RU2284068C1 (en) * | 2005-03-24 | 2006-09-20 | Войсковая часть 51105 | Device for generating loading radiation field of objects during radiation resistance tests |
KR100878330B1 (en) * | 2007-08-06 | 2009-01-14 | 한국원자력연구원 | Plug type research reactor irradiation rig |
RU2404467C1 (en) * | 2009-10-22 | 2010-11-20 | Федеральное государственное учреждение "12 Центральный научно-исследовательский институт Министерства обороны Российской Федерации" | Method for formation of gamma neutron radiation field in research reactors |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2686838C1 (en) * | 2018-05-21 | 2019-05-06 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method for simultaneous reproduction of given neutron fluence and exposure dose of gamma radiation at research reactors |
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