Determination of neutron energy spectrum at KAMINI shielding experiment location

被引：6

作者：

Sen, Sujoy ^{[1
]}

Bagchi, Subhrojit ^{[1
]}

Prasad, R. R. ^{[1
]}

Venkatasubramanian, D. ^{[1
]}

Mohanakrishnan, P. ^{[2
]}

Keshavamurty, R. S. ^{[3
]}

Haridas, Adish ^{[1
]}

Arul, A. John ^{[1
]}

Puthiyavinayagam, P. ^{[4
]}

机构：

[1] IGCAR, Radiat Shielding & Data Div, Kalpakkam, Tamil Nadu, India

[2] Manipal Univ, MCNS, Manipal, Karnataka, India

[3] MS Ramaiah Univ Appl Sci, Bangaluru, India

[4] IGCAR, Reactor Design Grp, Kalpakkam, Tamil Nadu, India

来源：

APPLIED RADIATION AND ISOTOPES | 2016年 / 115卷

关键词：

KAMINI; Spectrum unfolding; Foil activation; Monte Carlo modeling; REACTOR; ATTENUATION;

D O I：

10.1016/j.apradiso.2016.06.025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The neutron spectrum at KAMINI reactor south beam tube end has been determined using multifoil activation method. This beam tube is being used for characterizing neutron attenuation of novel shield materials. Starting from a computed guess spectrum, the spectrum adjustment/unfolding procedure makes use of minimization of a modified constraint function representing (a) least squared deviations between the measured and calculated reaction rates, (b) a measure of sharp fluctuations in the adjusted spectrum and (c) the square of the deviation of adjusted spectrum from the guess spectrum. The adjusted/unfolded spectrum predicts the reaction rates accurately. The results of this new procedure are compared with those of widely used SAND-II code. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：165 / 171

页数：7

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