Enhancement of Compton suppression ratios in anti-Compton techniques: the Garching and Karlsruhe photon spectrometers

Wahl, W.; Degering, D.; Lierse, C.; Lin, Xucong

doi:10.1016/s0168-9002(96)80065-9

Cited by 10 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The rear part of the Ge-crystal, in this case, has no added value since it mainly increases the background at the lower energies. A Compton suppression system will help only to some modest extent, since its effect below 100 keV is limited unless a complicated arrangement with an extra detector "behind" the Ge-crystal is used [15]. (ii) The resolution of a HPGe-detector degrades with increased size and particularly at low energies a high resolution is needed to resolve the many γ-rays, X-rays, backscatter and escape peaks lying close in energy.…”

Section: Use Of a Suitable Detectormentioning

confidence: 99%

Quantification of uranium-238 in environmental samples using gamma-ray spectrometry

Hult¹,

Andreotti²,

Orduña³

et al. 2012

EPJ Web of Conferences

View full text Add to dashboard Cite

A large number of environmental samples are routinely measured world-wide using gamma-ray spectrometry, some of its assets being easy sample preparation and comprehensive data for many radionuclides in one analysis. Although other techniques can be considered more suitable for analysing 238 U in environmental samples, it is also routinely done by gamma-ray spectrometry. One mainly uses γ-ray emissions following the decay of the first daughter, 234 Th, for determining the 238 U activity. However, the low-energy gamma-rays at 63 keV and 92.5 keV are very difficult to quantify in a robust way due to high attenuation and interferences. This paper quantifies parameters affecting the possibility of making robust quantification of 238 U via 234 Th using gamma-ray spectrometry. It addresses the use of correct decay data, suitable detectors, optimised sample size, enhanced spectral amplification, correction for peak interferences and control of background.

show abstract

Section: Use Of a Suitable Detectormentioning

confidence: 99%

Quantification of uranium-238 in environmental samples using gamma-ray spectrometry

Hult¹,

Andreotti²,

Orduña³

et al. 2012

EPJ Web of Conferences

View full text Add to dashboard Cite

show abstract

“…[1,2] This work presents an investigation for obtaining the pure energy spectrum of a radioisotope by rejecting the background and spurious contributions at room temperature.…”

Section: Introductionmentioning

confidence: 99%

An Investigation for Obtaining Pure Energy Spectra at Room Temperature

Celiktas¹

2007

Instrumentation Science & Technology

View full text Add to dashboard Cite

In order to obtain pure beta and gamma ray energy spectra, two spectrometers were developed to eliminate the background and the spurious counts not from a radiation source. Anticoincidence (active shielding) and timing methods were used in the beta and gamma spectrometers, separately. The results obtained from the spectrometers from both methods were compared with each other. The timing method was more successful in rejection of background and spurious counts in the energy spectrum of a radioactive source.

show abstract

“…For most anti-Compton systems, the guard counter is configured to cover a 4π solid angle for the scattered gamma rays that escape from the Ge crystal. [2][3][4][5] In addition, small samples are placed within the guard counter of anti-Compton shielding.…”

Section: Introductionmentioning

confidence: 99%

Design of an Anti-Compton Spectrometer for Low-Level Radioactive Wastes using Monte Carlo Techniques

Tsutsumi¹,

Oishi²,

Kinouchi³

et al. 2002

Journal of Nuclear Science and Technology

View full text Add to dashboard Cite

An anti-Compton spectrometer with semi-2π Compton suppression is designed to identify the photons emitted from low-level radioactive wastes from radioisotope usage and nuclear research laboratory. Since the objective sample is massive and large, the system has a full opening toward the sample position. The characteristics and features of the system concerning Compton suppression and reduction of the background component due to natural radioactive source are estimated by the Monte Carlo simulations. The anti-Compton technique is shown to be quite advantageous for the reduction of the surrounding natural background radiation, as well as the suppression of the background for the higher energy photons.

show abstract

Enhancement of Compton suppression ratios in anti-Compton techniques: the Garching and Karlsruhe photon spectrometers

Cited by 10 publications

References 11 publications

Quantification of uranium-238 in environmental samples using gamma-ray spectrometry

Quantification of uranium-238 in environmental samples using gamma-ray spectrometry

An Investigation for Obtaining Pure Energy Spectra at Room Temperature

Design of an Anti-Compton Spectrometer for Low-Level Radioactive Wastes using Monte Carlo Techniques

Contact Info

Product

Resources

About