The methodology for validation of cross sections in quasi
monoenergetic neutron field

J 2022

The methodology for validation of cross sections in quasi monoenergetic neutron field

MATĚJ, Zdeněk, Michal KOŠŤÁL, Mitja MAJERLE, Martin ANSORGE, Evžen LOSA et. al.

Basic information

Original name

The methodology for validation of cross sections in quasi monoenergetic neutron field

Authors

MATĚJ, Zdeněk (203 Czech Republic, guarantor, belonging to the institution), Michal KOŠŤÁL, Mitja MAJERLE, Martin ANSORGE, Evžen LOSA, Marek ZMEŠKAL, Martin SCHULC, Jan ŠIMON, Milan ŠTEFÁNIK, Jan NOVÁK, Daniil KOLIADKO, František CVACHOVEC (203 Czech Republic), Filip MRAVEC (203 Czech Republic, belonging to the institution), Václav PŘENOSIL (203 Czech Republic, belonging to the institution), Václav ZACH, Tomáš CZAKOJ, Vojtěch RYPAR and Roberto CAPOTE

Edition

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, NETHERLANDS, ELSEVIER, 2022, 0168-9002

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10300 1.3 Physical sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 1.400

RIV identification code

RIV/00216224:14330/22:00128970

Organization unit

Faculty of Informatics

DOI

http://dx.doi.org/10.1016/j.nima.2022.167075

UT WoS

000856943900001

Keywords in English

IRDFF II; Cross section validation; 7Li(p n) neutrons; MCNPX

Změněno: 5/4/2023 04:36, RNDr. Pavel Šmerk, Ph.D.

Abstract

V originále

Dosimetry cross sections are fundamental quantities for proper determination of the neutron fluences in points of interest under heavy radiation load. One of the critical applications is the Reactor Pressure Vessel aging management, related to the correct estimation of its residual lifetime or for many non-reactor applications including neutron dosimetry of accelerator-based fields or space applications. The neutron flux of neutrons above 12 MeV in reference to fission spectra is below 1%. Therefore, new reference neutron fields with average energy above 5 MeV should be developed for the validation of neutron dosimetry cross sections up to 60 MeV. This paper presents the testing of a new methodology for the use of quasi monoenergetic neutron fields, where different sensitivity allows validations of the dosimetry cross section at energies much higher than the average energy of around 2 MeV typical of fission spectra. The exact shape of the neutron spectrum in the tested fields is measured by stilbene spectrometry. The total flux is determined from Ni and Al flux monitors. The developed methodology was applied to the validation of selected reactions from the IRDFF-II library showing satisfactory agreement.

Citovat

MATĚJ, Zdeněk, Michal KOŠŤÁL, Mitja MAJERLE, Martin ANSORGE, Evžen LOSA, Marek ZMEŠKAL, Martin SCHULC, Jan ŠIMON, Milan ŠTEFÁNIK, Jan NOVÁK, Daniil KOLIADKO, František CVACHOVEC, Filip MRAVEC, Václav PŘENOSIL, Václav ZACH, Tomáš CZAKOJ, Vojtěch RYPAR and Roberto CAPOTE. The methodology for validation of cross sections in quasi monoenergetic neutron field. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. NETHERLANDS: ELSEVIER, 2022, vol. 1040, No 167075, p. 1-13. ISSN 0168-9002. Available from: https://dx.doi.org/10.1016/j.nima.2022.167075.

@article{2273069,
   author = {Matěj, Zdeněk and Košťál, Michal and Majerle, Mitja and Ansorge, Martin and Losa, Evžen and Zmeškal, Marek and Schulc, Martin and Šimon, Jan and Štefánik, Milan and Novák, Jan and Koliadko, Daniil and Cvachovec, František and Mravec, Filip and Přenosil, Václav and Zach, Václav and Czakoj, Tomáš and Rypar, Vojtěch and Capote, Roberto},
   article_location = {NETHERLANDS},
   article_number = {167075},
   doi = {http://dx.doi.org/10.1016/j.nima.2022.167075},
   keywords = {IRDFF II; Cross section validation; 7Li(p n) neutrons; MCNPX},
   language = {eng},
   issn = {0168-9002},
   journal = {NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT},
   title = {The methodology for validation of cross sections in quasi monoenergetic neutron field},
   url = {https://www.sciencedirect.com/science/article/pii/S0168900222004910},
   volume = {1040},
   year = {2022}
}

TY  - JOUR
ID  - 2273069
AU  - Matěj, Zdeněk - Košťál, Michal - Majerle, Mitja - Ansorge, Martin - Losa, Evžen - Zmeškal, Marek - Schulc, Martin - Šimon, Jan - Štefánik, Milan - Novák, Jan - Koliadko, Daniil - Cvachovec, František - Mravec, Filip - Přenosil, Václav - Zach, Václav - Czakoj, Tomáš - Rypar, Vojtěch - Capote, Roberto
PY  - 2022
TI  - The methodology for validation of cross sections in quasi monoenergetic neutron field
JF  - NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
VL  - 1040
IS  - 167075
SP  - 1-13
EP  - 1-13
PB  - ELSEVIER
SN  - 01689002
KW  - IRDFF II
KW  - Cross section validation
KW  - 7Li(p n) neutrons
KW  - MCNPX
UR  - https://www.sciencedirect.com/science/article/pii/S0168900222004910
N2  - Dosimetry cross sections are fundamental quantities for proper determination of the neutron fluences in points of interest under heavy radiation load. One of the critical applications is the Reactor Pressure Vessel aging management, related to the correct estimation of its residual lifetime or for many non-reactor applications including neutron dosimetry of accelerator-based fields or space applications. The neutron flux of neutrons above 12 MeV in reference to fission spectra is below 1%. Therefore, new reference neutron fields with average energy above 5 MeV should be developed for the validation of neutron dosimetry cross sections up to 60 MeV. This paper presents the testing of a new methodology for the use of quasi monoenergetic neutron fields, where different sensitivity allows validations of the dosimetry cross section at energies much higher than the average energy of around 2 MeV typical of fission spectra. The exact shape of the neutron spectrum in the tested fields is measured by stilbene spectrometry. The total flux is determined from Ni and Al flux monitors. The developed methodology was applied to the validation of selected reactions from the IRDFF-II library showing satisfactory agreement.
ER  -

MATĚJ, Zdeněk, Michal KOŠŤÁL, Mitja MAJERLE, Martin ANSORGE, Evžen LOSA, Marek ZMEŠKAL, Martin SCHULC, Jan ŠIMON, Milan ŠTEFÁNIK, Jan NOVÁK, Daniil KOLIADKO, František CVACHOVEC, Filip MRAVEC, Václav PŘENOSIL, Václav ZACH, Tomáš CZAKOJ, Vojtěch RYPAR and Roberto CAPOTE. The methodology for validation of cross sections in quasi monoenergetic neutron field. \textit{NUCLEAR INSTRUMENTS \&{} METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT}. NETHERLANDS: ELSEVIER, 2022, vol.~1040, No~167075, p.~1-13. ISSN~0168-9002. Available from: https://dx.doi.org/10.1016/j.nima.2022.167075.

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