Measurements of Neutron Fields in a Wide Energy Range Using Multi-Foil Activation Analysis

被引：2

作者：

Chiesa, D. ^{[1
,2
]}

Cazzaniga, C. ^{[3
]}

Nastasi, M. ^{[1
,2
]}

Rebai, M. ^{[2
,4
,5
]}

Frost, C. D. ^{[3
]}

Gorini, G. ^{[1
,2
]}

Lilley, S. ^{[3
]}

Pozzi, S. ^{[1
,2
]}

Previtali, E. ^{[1
,2
]}

机构：

[1] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[2] INFN, Sez Milano Bicocca, I-20126 Milan, Italy

[3] Rutherford Appleton Lab, ISIS Facil, UKRI STFC, Didcot OX11 0QX, Oxon, England

[4] Univ Milano Bicocca, Dept Phys, I-20126 Milan, Italy

[5] CNR, Ist Sci & Tecnol Plasmi, I-20125 Milan, Italy

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2022年 / 69卷 / 07期

关键词：

Neutrons; Atmospheric measurements; Energy measurement; Detectors; Semiconductor device measurement; Radiation effects; Protons; Activation analysis; Bayesian unfolding; gamma spectroscopy; neutron flux; spallation source; CROSS-SECTIONS; NUCLEAR-DATA; FLUX; ENDF/B-VII.1; IRRADIATION; SIMULATION;

D O I：

10.1109/TNS.2021.3138636

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An accurate characterization of the neutron fields at spallation sources is crucial for many applications based on neutron irradiations, such as radiation damage tests that need a precise dose estimate. In this work, we present the neutron flux measurements performed with the multi-foil activation technique in the ROTAX and ChipIr beamlines of the ISIS spallation source, characterized by moderated and unmoderated spectra, respectively. We selected many different activation reactions to cover a wide energy range, from thermal to very fast neutrons up to about 100 MeV. By applying a Bayesian unfolding algorithm, we demonstrate the effectiveness of this technique in measuring the neutron flux intensity and energy spectrum with precision and accuracy.

引用

页码：1659 / 1666

页数：8

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