Assessment of neutron flux gradients in irradiation channels at the TRIGA reactor by Au-Cr-Mo monitor set based on k0-INAA

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A gradient of neutron flux distribution in an irradiation channel in research reactor is considered to have effect on the k0-instrumental neutron activation analysis (k0-INAA) measurement. A study has been carried out to determine: (1) the variation of the thermal to epithermal neutron flux ratio (f); (2) the epithermal neutron flux shape factor (α), and; (3) the neutron flux in an irradiation container at four selected irradiation channels, use being made of an Au-Cr-Mo monitor set. In this work, f was found to range from 15.5-16.3, while α was found to range from 1.52 × 10-2-5.58 × 10-2. Additionally, within the selected irradiation channels the variation in calculated thermal neutron flux within one irradiation container was found to vary from 11.8%-26.7%. The results of analysis have provided a determination of variation in the neutron parameters, f and α and neutron flux between the irradiation channels and within the irradiation container.

Original languageEnglish
Pages (from-to)401-404
Number of pages4
JournalSains Malaysiana
Volume37
Issue number4
Publication statusPublished - Dec 2008

Fingerprint

neutron activation analysis
flux (rate)
monitors
reactors
gradients
irradiation
containers
thermal neutrons
neutrons

Keywords

  • K-INAA
  • Neutron parameters
  • Newton flux distribution

ASJC Scopus subject areas

  • General

Cite this

@article{c514992cbbeb4050b0376c66b8c144aa,
title = "Assessment of neutron flux gradients in irradiation channels at the TRIGA reactor by Au-Cr-Mo monitor set based on k0-INAA",
abstract = "A gradient of neutron flux distribution in an irradiation channel in research reactor is considered to have effect on the k0-instrumental neutron activation analysis (k0-INAA) measurement. A study has been carried out to determine: (1) the variation of the thermal to epithermal neutron flux ratio (f); (2) the epithermal neutron flux shape factor (α), and; (3) the neutron flux in an irradiation container at four selected irradiation channels, use being made of an Au-Cr-Mo monitor set. In this work, f was found to range from 15.5-16.3, while α was found to range from 1.52 × 10-2-5.58 × 10-2. Additionally, within the selected irradiation channels the variation in calculated thermal neutron flux within one irradiation container was found to vary from 11.8{\%}-26.7{\%}. The results of analysis have provided a determination of variation in the neutron parameters, f and α and neutron flux between the irradiation channels and within the irradiation container.",
keywords = "K-INAA, Neutron parameters, Newton flux distribution",
author = "{Kok Siong}, {Khoo Kok Siong} and Sukiman Sarmani and {Ab. Majid}, Amran and Leong, {Ti Kien}",
year = "2008",
month = "12",
language = "English",
volume = "37",
pages = "401--404",
journal = "Sains Malaysiana",
issn = "0126-6039",
publisher = "Penerbit Universiti Kebangsaan Malaysia",
number = "4",

}

TY - JOUR

T1 - Assessment of neutron flux gradients in irradiation channels at the TRIGA reactor by Au-Cr-Mo monitor set based on k0-INAA

AU - Kok Siong, Khoo Kok Siong

AU - Sarmani, Sukiman

AU - Ab. Majid, Amran

AU - Leong, Ti Kien

PY - 2008/12

Y1 - 2008/12

N2 - A gradient of neutron flux distribution in an irradiation channel in research reactor is considered to have effect on the k0-instrumental neutron activation analysis (k0-INAA) measurement. A study has been carried out to determine: (1) the variation of the thermal to epithermal neutron flux ratio (f); (2) the epithermal neutron flux shape factor (α), and; (3) the neutron flux in an irradiation container at four selected irradiation channels, use being made of an Au-Cr-Mo monitor set. In this work, f was found to range from 15.5-16.3, while α was found to range from 1.52 × 10-2-5.58 × 10-2. Additionally, within the selected irradiation channels the variation in calculated thermal neutron flux within one irradiation container was found to vary from 11.8%-26.7%. The results of analysis have provided a determination of variation in the neutron parameters, f and α and neutron flux between the irradiation channels and within the irradiation container.

AB - A gradient of neutron flux distribution in an irradiation channel in research reactor is considered to have effect on the k0-instrumental neutron activation analysis (k0-INAA) measurement. A study has been carried out to determine: (1) the variation of the thermal to epithermal neutron flux ratio (f); (2) the epithermal neutron flux shape factor (α), and; (3) the neutron flux in an irradiation container at four selected irradiation channels, use being made of an Au-Cr-Mo monitor set. In this work, f was found to range from 15.5-16.3, while α was found to range from 1.52 × 10-2-5.58 × 10-2. Additionally, within the selected irradiation channels the variation in calculated thermal neutron flux within one irradiation container was found to vary from 11.8%-26.7%. The results of analysis have provided a determination of variation in the neutron parameters, f and α and neutron flux between the irradiation channels and within the irradiation container.

KW - K-INAA

KW - Neutron parameters

KW - Newton flux distribution

UR - http://www.scopus.com/inward/record.url?scp=56849105400&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56849105400&partnerID=8YFLogxK

M3 - Article

VL - 37

SP - 401

EP - 404

JO - Sains Malaysiana

JF - Sains Malaysiana

SN - 0126-6039

IS - 4

ER -