Cross sections of the Ca 40 (n, α0)37Ar and Ca 40 (n, alpha 0)37Ar reactions in the 8.50-9.50 MeV neutron energy range

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F22%3A00363644" target="_blank" >RIV/68407700:21670/22:00363644 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.106.054610" target="_blank" >https://doi.org/10.1103/PhysRevC.106.054610</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.106.054610" target="_blank" >10.1103/PhysRevC.106.054610</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cross sections of the Ca 40 (n, α0)37Ar and Ca 40 (n, alpha 0)37Ar reactions in the 8.50-9.50 MeV neutron energy range

Popis výsledku v původním jazyce

Cross sections of the 40Ca (n, alpha 0) 37Ar and 40Ca (n, alpha) 37Ar reactions at five neutron energy points in the 8.50-9.50 MeV energy region were measured. The monoenergetic neutrons were produced through the 2H(d, n)3He reaction based on the HI-13 tandem accelerator of China Institute of Atomic Energy (CIAE). A twin gridded ionization chamber (GIC) was used as the charged particle detector. Detailed simulations were performed to determine the nuclear reaction events and detection efficiencies. Present results are compared with existing measurement and evaluation data, which shows that the evaluation data from all libraries are higher than the measurement data in the 8.50-9.50 MeV region for the 40Ca (n, alpha) 37Ar reaction. TALYS-1.9 code was used for theoretical calculations. Calculation results using the TALYS-1.9 code with the adjusted parameters are in agreement with the present measurements, which also show that the compound mechanism predominates the 40Ca (n, alpha) 37Ar reaction in the 8.50-9.50 MeV region. Both present measured forward/backward ratios and TALYS-1.9 calculations suggest that the direct and preequilibrium mechanisms are non-negligible for the 40Ca (n, alpha) 37Ar reaction in the 8.50-9.50 MeV region.

Název v anglickém jazyce

Cross sections of the Ca 40 (n, α0)37Ar and Ca 40 (n, alpha 0)37Ar reactions in the 8.50-9.50 MeV neutron energy range

Popis výsledku anglicky

Cross sections of the 40Ca (n, alpha 0) 37Ar and 40Ca (n, alpha) 37Ar reactions at five neutron energy points in the 8.50-9.50 MeV energy region were measured. The monoenergetic neutrons were produced through the 2H(d, n)3He reaction based on the HI-13 tandem accelerator of China Institute of Atomic Energy (CIAE). A twin gridded ionization chamber (GIC) was used as the charged particle detector. Detailed simulations were performed to determine the nuclear reaction events and detection efficiencies. Present results are compared with existing measurement and evaluation data, which shows that the evaluation data from all libraries are higher than the measurement data in the 8.50-9.50 MeV region for the 40Ca (n, alpha) 37Ar reaction. TALYS-1.9 code was used for theoretical calculations. Calculation results using the TALYS-1.9 code with the adjusted parameters are in agreement with the present measurements, which also show that the compound mechanism predominates the 40Ca (n, alpha) 37Ar reaction in the 8.50-9.50 MeV region. Both present measured forward/backward ratios and TALYS-1.9 calculations suggest that the direct and preequilibrium mechanisms are non-negligible for the 40Ca (n, alpha) 37Ar reaction in the 8.50-9.50 MeV region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

106

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

"054610-1"-"054610-9"

Kód UT WoS článku

000897723200005

EID výsledku v databázi Scopus

2-s2.0-85143782278