Measurement of the high energy neutron flux on the surface of the natural uranium target assembly QUINTA irradiated by deuterons of 4 and 8 GeV energy

被引：7

作者：

Adam, J. ^{[1
,6
]}

Baldin, A. A. ^{[2
]}

Chilap, V. ^{[3
]}

Furman, W. ^{[1
]}

Katovsky, K. ^{[4
]}

Khushvaktov, J. ^{[1
]}

Kumar, V. ^{[5
]}

Pronskikh, V. ^{[1
,7
]}

Mar'in, I. ^{[1
]}

Solnyshkin, A. ^{[1
]}

Suchopar, M. ^{[6
,8
]}

Tsupko-Sitnikov, V. ^{[1
]}

Tyutyunnikov, S. ^{[1
]}

Vrzalova, J. ^{[1
,8
]}

Wagner, V. ^{[6
]}

Zavorka, L. ^{[1
,8
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Inst Adv Studies OMEGA, Dubna, Russia

[3] CPTP Atomenergomash, Moscow, Russia

[4] Brno Univ Technol, Brno, Czech Republic

[5] GGS Indraprastha Univ, New Delhi, India

[6] Inst Nucl Phys, Rez, Czech Republic

[7] Fermilab Natl Accelerator Lab, Batavia, IL USA

[8] Czech Tech Univ, Prague, Czech Republic

来源：

26TH INTERNATIONAL CONFERENCE ON NUCLEAR TRACKS IN SOLIDS (ICNTS26) | 2015年 / 80卷

关键词：

Accelerator driven system (ADS); uranium target-blanket; spallation neutrons; neutron spectrum; gamma spectrometry; MCNPX; REACTION-RATES; BEAM;

D O I：

10.1016/j.phpro.2015.11.101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experiments with the natural uranium target assembly "QUINTA" exposed to 4 and 8 GeV deuteron beams of the Nuclotron accelerator at the Joint Institute for Nuclear Research (Dubna) are analyzed. The reaction rates of Al-27(n,yl)Na-24, Al-27(n,y2)Na-22 and Al-27(n,y3)Be-7 reactions with effective threshold energies of 5, 27, and 119 MeV were measured at both 4 GeV and 8 GeV deuteron beam energies. The average neutron fluxes between the effective threshold energies and the effective ends of the neutron spectra (which are 800 or 1000 MeV for 4 or 8 GeV deuterons) were determined. The evidence for the intensity shift of the neutron spectra to higher neutron energies with the increase of the deuteron energy from 4 GeV to 8 GeV was found from the ratios of the average neutron fluxes. The reaction rates and the average neutron fluxes were calculated with the MCNPX 2.7 code. (C) 2015 Published by Elsevier B.V.

引用

页码：94 / 97

页数：4

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