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RISA comparison study on three different radiation detectors used for liquid levelmetry
In this paper, three different radiation detectors (BF3 counter, NE213 and BGO scintillators) and an 241Am–Be isotopic neutron–gamma source have been used for a typical liquid levelmetry. The study shows that the use of the Am–Be source together...
A simple well-logging tool using boronlined sodium iodide scintillators and an 241Am-Be neutron source
A couple of 2-inch by 2-inch right cylinder sodium iodide scintillators and an Am–Be radioisotope neutron source have been used in a neutron porosity well-logging tool to explore the variation of hydrogen contents in a prototype formation. Both...
A quality survey on different shielding configurations of gamma ray detector used with a portable PGNAA system
PGNAA system against both fast and slow neutrons as well as gamma rays emitted by 20Ci Am–Be source. The measurement results show that in contrast with conventional shadow cone in which the shielding material starts with 20 cm heavy metals such as iron...
An Optimum Landmine Detection System Using Polyethylene Moderator and 241Am-Be as a Neutron Source
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
experimental set up composed of a Pb cylindrical shell enclosing...
The investigation of Am - Be neutron source shield effect used on landmine detection
shield around Am–Be neutron source, the increase of signal-to-noise ratio up to 130%....
Determination of Neutron Detectors Shield Used for the Detection of Landmines
As a result of being hydrogenous moderators, several landmine detection methods based on nuclear techniques have been suggested in recent years. Because of elastic scattering and moderating neutrons from hydrogen atoms in ...
Gamma Shielding Design Studies on 252Cf and 241Am-Be Neutron Sources
Abstract : The 252Cf radioisotope and 241Am-Be are intense neutron emitters that are readily
encapsulated in compact, portable, sealed sources. They have wide range of applications in
laboratories, industries and medicines, because...
The effect of source shield on landmine detection
Background: Several landmine detection
methods, based on nuclear techniques, have been
suggested during the recent years. Neutron energy
moderation, neutron-induced gamma emission,
neutron and ...
Improving the moderator geometry of an anti-personnel landmine detection system
The optimum moderating geometry using an 241Am–Be neutron source for detecting landmines has been investigated. The experimental setup composed of a Pb cylindrical shell enclosing the neutron source, embedded in a fixed-size high...
Reduction of the Gamma Dose Equivalent due to 252Cf and 241Am-Be Neutron Sources in the Patients Soft Tissues When Using Body Chemical Composition Analyzer Bed
The 252Cf radioisotope and 241Am-Be are routinely compact and portable encapsulated neutron sources that have wide range of applications in laboratories, industries and medicine because of their high flux and reliable neutron spectrum. They are cost...