Measurement of prompt gamma field above the VR-1 water level

D 2021

Measurement of prompt gamma field above the VR-1 water level

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

Základní údaje

Originální název

Measurement of prompt gamma field above the VR-1 water level

Autoři

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

Vydání

Praha, EPJ Web of Conferences, Volume 253, ANIMMA 2021 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications, od s. 1-6, 6 s. 2021

Nakladatel

EDP Sciences

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10304 Nuclear physics

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Odkazy

URL

Kód RIV

RIV/00216224:14330/21:00122896

Organizační jednotka

Fakulta informatiky

ISSN

DOI

http://dx.doi.org/10.1051/epjconf/202125304014

UT WoS

000788459400027

Klíčová slova anglicky

Capture gammas; Scintillation detectors; HPGe detector; Prompt gamma

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 31. 5. 2022 12:36, RNDr. Pavel Šmerk, Ph.D.

Anotace

V originále

Pool-type reactors are an excellent source of high energy photons without neutrons because the water above fuel acts as an outstanding neutron shielding, whereas for high energy photons, it is nearly transparent. The absence of neutrons is a valuable property essential for testing semiconductor detectors because they are sensitive to neutrons, which might cause their damage. The high energy gammas are worth studying because they are responsible for radiation induced heating of reactor internal components in energy producing reactors, which might lead to their radiation induced damage by void swelling. At this effect, the helium produced in (n,α) reactions influenced by locally increased temperature clusters into bigger bubbles, which are increasing material volume, and therefore changing the geometry of internals. The referred method could be utilized e.g. for resource exploration by detecting prompt capture gammas. The prompt gamma field was measured at the VR-1 reactor with two different cores and water levels. The stilbene measurements showed relatively good agreement with the spectrum shape computed by MCNP6.2. An important result is a confirmation that the stilbene deconvolution matrix can be used with a rotated crystal. The testing measurement with HPGe detectors showed a possibility for measurement in such type of geometry.

Citovat

CZAKOJ, Tomáš, Michal KOŠŤÁL, Zdeněk MATĚJ, Evžen LOSA, Jan ŠIMON, Filip MRAVEC a František CVACHOVEC. Measurement of prompt gamma field above the VR-1 water level. Online. In Abdallah Lyoussi. EPJ Web of Conferences, Volume 253, ANIMMA 2021 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications. Praha: EDP Sciences, 2021, s. 1-6. ISSN 2100-014X. Dostupné z: https://dx.doi.org/10.1051/epjconf/202125304014.

@inproceedings{1804595,
   author = {Czakoj, Tomáš and Košťál, Michal and Matěj, Zdeněk and Losa, Evžen and Šimon, Jan and Mravec, Filip and Cvachovec, František},
   address = {Praha},
   booktitle = {EPJ Web of Conferences, Volume 253, ANIMMA 2021 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications},
   doi = {http://dx.doi.org/10.1051/epjconf/202125304014},
   editor = {Abdallah Lyoussi},
   keywords = {Capture gammas; Scintillation detectors; HPGe detector; Prompt gamma},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Praha},
   pages = {1-6},
   publisher = {EDP Sciences},
   title = {Measurement of prompt gamma field above the VR-1 water level},
   url = {https://www.epj-conferences.org/articles/epjconf/abs/2021/07/epjconf_animma2021_04014/epjconf_animma2021_04014.html},
   year = {2021}
}

TY  - JOUR
ID  - 1804595
AU  - Czakoj, Tomáš - Košťál, Michal - Matěj, Zdeněk - Losa, Evžen - Šimon, Jan - Mravec, Filip - Cvachovec, František
PY  - 2021
TI  - Measurement of prompt gamma field above the VR-1 water level
PB  - EDP Sciences
CY  - Praha
KW  - Capture gammas
KW  - Scintillation detectors
KW  - HPGe detector
KW  - Prompt gamma
UR  - https://www.epj-conferences.org/articles/epjconf/abs/2021/07/epjconf_animma2021_04014/epjconf_animma2021_04014.html
N2  - Pool-type reactors are an excellent source of high energy photons without neutrons because the water above fuel acts as an outstanding neutron shielding, whereas for high energy photons, it is nearly transparent. The absence of neutrons is a valuable property essential for testing semiconductor detectors because they are sensitive to neutrons, which might cause their damage. The high energy gammas are worth studying because they are responsible for radiation induced heating of reactor internal components in energy producing reactors, which might lead to their radiation induced damage by void swelling. At this effect, the helium produced in (n,α) reactions influenced by locally increased temperature clusters into bigger bubbles, which are increasing material volume, and therefore changing the geometry of internals. The referred method could be utilized e.g. for resource exploration by detecting prompt capture gammas. The prompt gamma field was measured at the VR-1 reactor with two different cores and water levels. The stilbene measurements showed relatively good agreement with the spectrum shape computed by MCNP6.2. An important result is a confirmation that the stilbene deconvolution matrix can be used with a rotated crystal. The testing measurement with HPGe detectors showed a possibility for measurement in such type of geometry.
ER  -

CZAKOJ, Tomáš, Michal KOŠŤÁL, Zdeněk MATĚJ, Evžen LOSA, Jan ŠIMON, Filip MRAVEC a František CVACHOVEC. Measurement of prompt gamma field above the VR-1 water level. Online. In Abdallah Lyoussi. \textit{EPJ Web of Conferences, Volume 253, ANIMMA 2021 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications}. Praha: EDP Sciences, 2021, s.~1-6. ISSN~2100-014X. Dostupné z: https://dx.doi.org/10.1051/epjconf/202125304014.

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