Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati

Neutron radiography (NR) is an important application in non-destructive testing which has been used especially in industrial, nuclear material, medical and agriculture. Reactor TRIGA PUSPATI (RTP) is the only research reactor in Malaysia which located at the Malaysian Nuclear Agency, with total capa...

Full description

Saved in:

Bibliographic Details
Main Author:	Sarkawi, Muhammad Syahir
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/92544/1/MuhammadSyahirPSChE2020.pdf.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.92544
record_format	uketd_dc
spelling	my-utm-ep.925442021-09-30T15:11:25Z Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati 2020 Sarkawi, Muhammad Syahir TP Chemical technology Neutron radiography (NR) is an important application in non-destructive testing which has been used especially in industrial, nuclear material, medical and agriculture. Reactor TRIGA PUSPATI (RTP) is the only research reactor in Malaysia which located at the Malaysian Nuclear Agency, with total capacity of 1MW operation. Its main applications are neutron activation analysis, small angle neutron scattering, and neutron radiography. The first NR facility system in RTP was ready for use in 1985. However, this neutron radiography facility known as NUR-2 was disassembled in 2014 due to several factors such as low collimation ratio, low thermal neutron flux, high gamma dose, and inadequate radiation shielding. Thus, there is a need to upgrade the capabilities of existing neutron radiography facility to meet current users’ needs. Monte Carlo simulation code of MCNPX was used to simulate the important parameters and instrument design of the new neutron radiography facility. This simulation code of the neutron beam helps to design experiments before placing any sample objects in the neutron beam. The new collimator, beam shutter, and shielding were fabricated based on the results from Monte Carlo simulations while the concrete mixture of the new exposure room shielding was formulated using Department of Environmental’s design method. The concrete samples were tested in terms of radiation shielding capability and strength. The best mix design was chosen to be fabricated as new exposure room shielding for NR facility at RTP. Furthermore, results obtained from the experimental works were used to verify the simulation modelling. Based on the simulation results, the new NR facility has a thermal neutron flux of 3.86×103 ncm-2s-1 at the sample position. The new collimated beam has been characterized using beam purity indicator and sensitivity indicator from American Society for Testing and Materials. Radiographs of a sensitivity indicator taken using both digital and conventional direct film radiographic method provide one example of the radiographic capabilities of the new facility. The neutron radiograph which was taken by charged-coupled device camera and film showed that digital neutron radiography is not currently capable of producing good quality radiographs but it is mainly due to the limitations of the digital detector itself. 2020 Thesis http://eprints.utm.my/id/eprint/92544/ http://eprints.utm.my/id/eprint/92544/1/MuhammadSyahirPSChE2020.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:139260 phd doctoral Universiti Teknologi Malaysia Faculty of Engineering - School of Chemical & Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Sarkawi, Muhammad Syahir Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
description	Neutron radiography (NR) is an important application in non-destructive testing which has been used especially in industrial, nuclear material, medical and agriculture. Reactor TRIGA PUSPATI (RTP) is the only research reactor in Malaysia which located at the Malaysian Nuclear Agency, with total capacity of 1MW operation. Its main applications are neutron activation analysis, small angle neutron scattering, and neutron radiography. The first NR facility system in RTP was ready for use in 1985. However, this neutron radiography facility known as NUR-2 was disassembled in 2014 due to several factors such as low collimation ratio, low thermal neutron flux, high gamma dose, and inadequate radiation shielding. Thus, there is a need to upgrade the capabilities of existing neutron radiography facility to meet current users’ needs. Monte Carlo simulation code of MCNPX was used to simulate the important parameters and instrument design of the new neutron radiography facility. This simulation code of the neutron beam helps to design experiments before placing any sample objects in the neutron beam. The new collimator, beam shutter, and shielding were fabricated based on the results from Monte Carlo simulations while the concrete mixture of the new exposure room shielding was formulated using Department of Environmental’s design method. The concrete samples were tested in terms of radiation shielding capability and strength. The best mix design was chosen to be fabricated as new exposure room shielding for NR facility at RTP. Furthermore, results obtained from the experimental works were used to verify the simulation modelling. Based on the simulation results, the new NR facility has a thermal neutron flux of 3.86×103 ncm-2s-1 at the sample position. The new collimated beam has been characterized using beam purity indicator and sensitivity indicator from American Society for Testing and Materials. Radiographs of a sensitivity indicator taken using both digital and conventional direct film radiographic method provide one example of the radiographic capabilities of the new facility. The neutron radiograph which was taken by charged-coupled device camera and film showed that digital neutron radiography is not currently capable of producing good quality radiographs but it is mainly due to the limitations of the digital detector itself.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Sarkawi, Muhammad Syahir
author_facet	Sarkawi, Muhammad Syahir
author_sort	Sarkawi, Muhammad Syahir
title	Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
title_short	Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
title_full	Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
title_fullStr	Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
title_full_unstemmed	Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati
title_sort	design, construction and facility enhancement for digital neutron radiography at reactor triga puspati
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92544/1/MuhammadSyahirPSChE2020.pdf.pdf
_version_	1747818600796782592

Design, construction and facility enhancement for digital neutron radiography at Reactor Triga Puspati

Similar Items