A study of reaction rates of (n, f), (n, gamma) and (n, 2n) reactions in U-nat and Th-232 by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F11%3A00376762" target="_blank" >RIV/61389005:_____/11:00376762 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epja/i2011-11085-4" target="_blank" >http://dx.doi.org/10.1140/epja/i2011-11085-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epja/i2011-11085-4" target="_blank" >10.1140/epja/i2011-11085-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A study of reaction rates of (n, f), (n, gamma) and (n, 2n) reactions in U-nat and Th-232 by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam

Popis výsledku v původním jazyce

Spallation neutrons produced in the collision of a 2.33 GeV deuteron beam with a large lead target are moderated by a thick graphite block surrounding the target and used to activate the radioactive samples of U-nat and Th put at three different positions, identified as holes "a", "b" and "c" in the graphite block. Rates of the (n, f), (n, gamma) and (n, 2n) reactions in the two samples are determined using the gamma spectrometry. The ratios of the experimental reaction rates, R(n, 2n)/R(n, f), for 232Th and U-nat are estimated in order to understand the role of the (n, xn) kind of reactions in Accelerator-Driven Subcritical Systems. For the Th-sample, the ratio is similar to 54(10)% in the case of hole "a" and similar to 95(57)% in the case of hole "b" compared to 1.73(20)% for hole "a" and 0.710(9)% for hole "b" in the case of the U-nat sample.

Název v anglickém jazyce

A study of reaction rates of (n, f), (n, gamma) and (n, 2n) reactions in U-nat and Th-232 by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam

Popis výsledku anglicky

Spallation neutrons produced in the collision of a 2.33 GeV deuteron beam with a large lead target are moderated by a thick graphite block surrounding the target and used to activate the radioactive samples of U-nat and Th put at three different positions, identified as holes "a", "b" and "c" in the graphite block. Rates of the (n, f), (n, gamma) and (n, 2n) reactions in the two samples are determined using the gamma spectrometry. The ratios of the experimental reaction rates, R(n, 2n)/R(n, f), for 232Th and U-nat are estimated in order to understand the role of the (n, xn) kind of reactions in Accelerator-Driven Subcritical Systems. For the Th-sample, the ratio is similar to 54(10)% in the case of hole "a" and similar to 95(57)% in the case of hole "b" compared to 1.73(20)% for hole "a" and 0.710(9)% for hole "b" in the case of the U-nat sample.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

<a href="/cs/project/LA08002" target="_blank" >LA08002: Spolupráce ČR s SÚJV Dubna v teoretické a jaderné fyzice a při využití jaderných metod v dalších oborech</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal A

ISSN

1434-6001

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

"85/1"-"85/17"

Kód UT WoS článku

000293634100004

EID výsledku v databázi Scopus

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