Calculation and measurement of Al prompt capture gammas above
water in a pool-type reactor

J 2022

Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor

CZAKOJ, Tomáš, Michal KOŠŤÁL, Evžen LOSA, Zdeněk MATĚJ, Jan ŠIMON et. al.

Základní údaje

Originální název

Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor

Autoři

CZAKOJ, Tomáš (garant), Michal KOŠŤÁL (203 Česká republika), Evžen LOSA, Zdeněk MATĚJ (203 Česká republika, domácí), Jan ŠIMON, Filip MRAVEC (203 Česká republika, domácí) a František CVACHOVEC (203 Česká republika)

Vydání

NUCLEAR ENGINEERING AND TECHNOLOGY, SOUTH KOREA, KOREAN NUCLEAR SOC, 2022, 1738-5733

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10300 1.3 Physical sciences

Stát vydavatele

Korejská republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.700

Kód RIV

RIV/00216224:14330/22:00128971

Organizační jednotka

Fakulta informatiky

DOI

http://dx.doi.org/10.1016/j.net.2022.05.019

UT WoS

000869040500009

Klíčová slova anglicky

PGNAA; Reactor; Radiation heating. Prompt gamma; mcnp

Změněno: 5. 4. 2023 04:37, RNDr. Pavel Šmerk, Ph.D.

Anotace

V originále

Prompt capture gammas are an important part of the fission reactor gamma field. Because some of the structural materials after neutron capture can emit photons with high energies forming the dominant component of the gamma spectrum in the high energy region, the following study of the high energy capture gamma was carried out. High energy gamma radiation may play a major role in areas of the radiation sciences as reactor dosimetry. The HPGe measurements and calculations of the high-energy aluminum capture gamma were performed at two moderator levels in the VR-1 pool-type reactor. The result comparison for nominal levels was within two sigma uncertainties for the major 7.724 MeV peak. A larger discrepancy of 60% was found for the 7.693 MeV peak. The spectra were also measured using a stilbene detector, and a good agreement between HPGe and stilbene was observed. This confirms the validity of stilbene measurements of gamma flux. Additionally, agreement of the wide peak measurement in 7–9.2 MeV by stilbene detector shows the possibility of using the organic scintillators as an independent power monitor. This fact is valid in these reactor types because power is proportional to the thermal neutron flux, which is also proportional to the production of capture gammas forming the wide peak.

Citovat

CZAKOJ, Tomáš, Michal KOŠŤÁL, Evžen LOSA, Zdeněk MATĚJ, Jan ŠIMON, Filip MRAVEC a František CVACHOVEC. Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor. NUCLEAR ENGINEERING AND TECHNOLOGY. SOUTH KOREA: KOREAN NUCLEAR SOC, 2022, roč. 54, č. 10, s. 3824-3832. ISSN 1738-5733. Dostupné z: https://dx.doi.org/10.1016/j.net.2022.05.019.

@article{2273077,
   author = {Czakoj, Tomáš and Košťál, Michal and Losa, Evžen and Matěj, Zdeněk and Šimon, Jan and Mravec, Filip and Cvachovec, František},
   article_location = {SOUTH KOREA},
   article_number = {10},
   doi = {http://dx.doi.org/10.1016/j.net.2022.05.019},
   keywords = {PGNAA; Reactor; Radiation heating. Prompt gamma; mcnp},
   language = {eng},
   issn = {1738-5733},
   journal = {NUCLEAR ENGINEERING AND TECHNOLOGY},
   title = {Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor},
   url = {https://www.sciencedirect.com/science/article/pii/S1738573322002686},
   volume = {54},
   year = {2022}
}

TY  - JOUR
ID  - 2273077
AU  - Czakoj, Tomáš - Košťál, Michal - Losa, Evžen - Matěj, Zdeněk - Šimon, Jan - Mravec, Filip - Cvachovec, František
PY  - 2022
TI  - Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor
JF  - NUCLEAR ENGINEERING AND TECHNOLOGY
VL  - 54
IS  - 10
SP  - 3824-3832
EP  - 3824-3832
PB  - KOREAN NUCLEAR SOC
SN  - 17385733
KW  - PGNAA
KW  - Reactor
KW  - Radiation heating. Prompt gamma
KW  - mcnp
UR  - https://www.sciencedirect.com/science/article/pii/S1738573322002686
N2  - Prompt capture gammas are an important part of the fission reactor gamma field. Because some of the structural materials after neutron capture can emit photons with high energies forming the dominant component of the gamma spectrum in the high energy region, the following study of the high energy capture gamma was carried out. High energy gamma radiation may play a major role in areas of the radiation sciences as reactor dosimetry. The HPGe measurements and calculations of the high-energy aluminum capture gamma were performed at two moderator levels in the VR-1 pool-type reactor. The result comparison for nominal levels was within two sigma uncertainties for the major 7.724 MeV peak. A larger discrepancy of 60% was found for the 7.693 MeV peak. The spectra were also measured using a stilbene detector, and a good agreement between HPGe and stilbene was observed. This confirms the validity of stilbene measurements of gamma flux. Additionally, agreement of the wide peak measurement in 7–9.2 MeV by stilbene detector shows the possibility of using the organic scintillators as an independent power monitor. This fact is valid in these reactor types because power is proportional to the thermal neutron flux, which is also proportional to the production of capture gammas forming the wide peak.
ER  -

CZAKOJ, Tomáš, Michal KOŠŤÁL, Evžen LOSA, Zdeněk MATĚJ, Jan ŠIMON, Filip MRAVEC a František CVACHOVEC. Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor. \textit{NUCLEAR ENGINEERING AND TECHNOLOGY}. SOUTH KOREA: KOREAN NUCLEAR SOC, 2022, roč.~54, č.~10, s.~3824-3832. ISSN~1738-5733. Dostupné z: https://dx.doi.org/10.1016/j.net.2022.05.019.

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