Simulation of Collimator for Neutron Imaging Facility of TRIGA MARK II PUSPATI Reactor

被引：3

作者：

Zin, Muhammad Rawi Mohamed ^{[1
]}

Jamro, Rafhayudi ^{[2
]}

Yazid, Khairiah ^{[3
]}

Hussain, Hishamuddin ^{[2
]}

Yazid, Hafizal ^{[2
]}

Ahmad, Megat Harun Al Rashid Megat ^{[2
]}

Azman, Azraf ^{[4
]}

Mohamad, Glam Hadzir Patai ^{[3
]}

Hamzah, Nai'im Syaugi ^{[1
]}

Abu, Mohamad Puad ^{[1
]}

机构：

[1] Agensi Nuklear Malaysia, Reactor Technol Div, Nucl Phys & Reactor Sect, Kajang 43000, Malaysia

[2] Agensi Nuklear Malaysia, Ind Technol Div, Mat Technol Grp, Kajang 43000, Malaysia

[3] Agensi Nuklear Malaysia, Tech Serv Div, Instrumentat Ctr, Kajang 43000, Malaysia

[4] Agensi Nuklear Malaysia, Tech Serv Div, Prototype Dev Ctr, Kajang 43000, Malaysia

来源：

PROCEEDINGS OF THE 10TH WORLD CONFERENCE ON NEUTRON RADIOGRAPHY (WCNR-10) | 2015年 / 69卷

关键词：

Neutron; Radiography; PUSPATI;

D O I：

10.1016/j.phpro.2015.07.020

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Neutron Radiography facility in TRIGA MARK II PUSPATI reactor is being upgraded to obtain better image resolution as well as reducing exposure time. Collimator and exposure room are the main components have been designed for fabrication. This article focuses on the simulation part that was carried out to obtain the profile of collimated neutron beam by utilizing the neutron transport protocol code in the Monte Carlo N-Particle (MCNP) software. Particular interest is in the selection of materials for inlet section of the collimator. Results from the simulation indicates that a combination of Bismuth and Sapphire, each of which has 5.0 cm length that can significantly filter both the gamma radiation and the fast neutrons. An aperture made of Cadmium with 1.0 cm opening diameter provides thermal neutron flux about 1.8 x 10(8) ncm(-2)s(-1) at the inlet, but reduces to 2.7 x 10(6) ncm(-2)s(-1) at the sample plane. Still the flux obtained is expected to reduces exposure time as well as gaining better image resolution. (C) 2015 Published by Elsevier B.V.

引用

页码：138 / 142

页数：5

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