Multi-layer shielding optimization of a high activity 241Am-Be mixed field irradiation facility

NA Kotb, AHM Solieman, T El-Zakla, TZ Amer… - Applied Radiation and …, 2025 - Elsevier
Neutron and gamma-ray shielding design for a 30Ci (1.11 TBq) 241 Am-Be irradiation
facility is studied using MCNP5 Monte Carlo simulation code. The study focuses on the …

Finding a suitable shield for mixed neutron and photon fields based on an Am–Be source

K Karimi-Shahri, L Rafat-Motavalli… - … of Radioanalytical and …, 2013 - Springer
This study aimed to investigate a shielding design against neutron and photon rays from
neutron irradiators based on Am–Be sources, using the Monte Carlo simulation. Different …

Investigation on Concrete Neutron Shielding Properties Filled by B4C, CdO, and BN Microparticles

M Alipour, MK Saadi, AA Rohani - Moscow University Physics Bulletin, 2019 - Springer
In this study, compounds; which are highly absorbent for neutrons due to their high
absorption cross-section, are used in different volume proportions within cubic geometry for …

Comparison of 3He and BF3 neutron detectors used to detect hydrogenous material buried in soil

D Rezaei-Ochbelagh - Radiation Physics and Chemistry, 2012 - Elsevier
Thermal neutrons detectors have been used for a long time and continue to be used to
detect hydrogenous material. In this work, BF3 and 3He detectors ability have been …

Detection of explosive remnants of war by neutron thermalisation

FD Brooks, M Drosg, FD Smit, C Wikner - Applied Radiation and Isotopes, 2012 - Elsevier
The HYDAD-D landmine detector (Brooks and Drosg, 2005) has been modified and field-
tested for 17 months in a variety of soil conditions. Test objects containing about the same …

The soil moisture and its effect on the detection of buried hydrogenous material by neutron backscattering technique

DR Ochbelagh, HM Hakimabad… - Radiation Physics and …, 2009 - Elsevier
Among the available nuclear techniques, the neutron backscattering technique, based on
the detection of the produced thermal neutrons, is thought to be the most promising for …

[PDF][PDF] The safety of a landmine detection system using graphite and polyethylene moderator

H MIRIHAKIMABAD, NA VOJDANI, H PANJEH - 2007 - sid.ir
Background: Several LANDMINE DETECTION methods, based on nuclear techniques, have
been suggested up to now. Neutron-induced gamma emission, neutron and gamma …

The operator dose assessment of landmine detection systems using the neutron backscattering method

E Assar, LR Motavalli, H Miri-Hakimabad… - … of Radioanalytical and …, 2013 - Springer
Personal safety issue is one of the major limitations in landmine detection by nuclear
techniques. In this paper, the dose rate received by the operator of different hand-held …

[PDF][PDF] An Optimum Landmine Detection System Using Polyethylene Moderator and 241Am-Be as a Neutron Source

H Miri-Hakimabad, H Panjeh… - Asian J. Exp. Sci, 2008 - academia.edu
In this paper an optimized moderating structure using an 241Am-Be neutron source for
detecting landmines (using the PGNAA method) has been investigated by experiment. The …

Determination of neutron detectors shield used for the detection of landmines

D REZAEI OCHBELAGH… - Iranian Journal of …, 2008 - journals.shirazu.ac.ir
As a result of being hydrogenous moderators, several landmine detection methods based
onnuclear techniques have been suggested in recent years. Because of elastic scattering …