scholarly journals Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy

2018 ◽  
Vol 6 (25) ◽  
pp. 6647-6655 ◽  
Author(s):  
Yuntao Wu ◽  
Dan Han ◽  
Bryan C. Chakoumakos ◽  
Hongliang Shi ◽  
Shiyou Chen ◽  
...  
Keyword(s):  
Single Crystals ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Radiation Detection ◽  
High Radiation ◽  
Inorganic Perovskite ◽  
Gamma Ray Spectroscopy ◽  
Blue Emitters ◽  
Scalable Synthesis

The zero-dimensional all-inorganic perovskites are self-activated blue emitters with slight hygroscopicity, scalable synthesis, and high radiation detection efficiency.

A solution-processed zero-dimensional all-inorganic perovskite scintillator for high resolution gamma-ray spectroscopy detection

Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9727-9732 ◽  
Author(s):  
Qiang Xu ◽  
Juan Wang ◽  
Wenyi Shao ◽  
Xiao Ouyang ◽  
Xiang Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Quantum Effect ◽  
Solution Processed ◽  
Inorganic Perovskite ◽  
Inorganic Scintillator ◽  
Gamma Ray Spectroscopy ◽  
Low Dimensional ◽  
High Resolution Gamma

A zero-dimensional all-inorganic CsPbBr3 nanocrystal embedded Cs4PbBr6 scintillator has been achieved. Owing to the low dimensional quantum effect, this all-inorganic scintillator exhibits desirable scintillation performance.

scholarly journals Pulse pileup correction method for gamma-ray spectroscopy in high radiation fields

2020 ◽  
Vol 52 (5) ◽  
pp. 1029-1035
Author(s):  
Minju Lee ◽  
Daehee Lee ◽  
Eunbie Ko ◽  
Kyeongjin Park ◽  
Junhyuk Kim ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Correction Method ◽  
High Radiation ◽  
Radiation Fields ◽  
Pulse Pileup ◽  
Gamma Ray Spectroscopy

scholarly journals Novel concept for neutron detection: proportional counter filled with 10B nanoparticle aerosol

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
F. D. Amaro ◽  
C. M. B. Monteiro ◽  
J. M. F. dos Santos ◽  
A. Antognini
Keyword(s):  
Proportional Counter ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Radiation Detection ◽  
Neutron Detection ◽  
Nuclear Material ◽  
Sensitive Material ◽  
Proportional Counters ◽  
Thermal Neutron Beam ◽  
Novel Concept

Abstract The high neutron detection efficiency, good gamma-ray discrimination and non-toxicity of 3He made of proportional counters filled with this gas the obvious choice for neutron detection, particularly in radiation portal monitors (RPM), used to control the illicit transport of nuclear material, of which neutron detectors are key components. 3He is very rare and during the last decade this gas has become increasingly difficult to acquire. With the exception of BF3, which is toxic, no other gas can be used for neutron detection in proportional counters. We present an alternative where the 3He atoms are replaced by nanoparticles made of another neutron sensitive material, 10B. The particles are dispersed in a gaseous volume, forming an aerosol with neutron sensitive properties. A proportional counter filled with such aerosol was exposed to a thermal neutron beam and the recorded response indicates that the neutrons have interacted with the particles in the aerosol. This original technique, which transforms a standard proportional gas mixture into a neutron sensitive aerosol, is a breakthrough in the field of radiation detection and has the potential to become an alternative to the use of 3He in proportional counters.

scholarly journals Semiempirical Efficiency Calibration in Semiconductor HPGe Gamma-Ray Spectroscopy

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Jelena Krneta Nikolić ◽  
Milica Rajačić ◽  
Dragana Todorović ◽  
Marija Janković ◽  
Nataša Sarap ◽  
...  
Keyword(s):  
Measurement Uncertainty ◽  
Environmental Protection ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Calibration Source ◽  
Semiempirical Approach ◽  
Hpge Detectors ◽  
Gamma Ray Spectroscopy ◽  
Measured Sample

One of the main problems in quantitative gamma-ray spectroscopy is the determination of detection efficiency, for different energies, source-detector geometries, and composition of samples or sources. There are, in principle, three approaches to this issue: experimental, numerical, and semiempirical. Semiempirical approach is based on the calculation of the efficiency for the measured sample on the basis of an experimental efficiency measured on the same detector, but with a calibration source that can be of different size, geometry, density, or composition—the so-called efficiency transfer. The aim of this paper is to analyze the semiempirical approach, using EFFTRAN and MEFFTRAN software as a typical example. These software were used in the Department of Radiation and Environmental Protection, Vinča Institute of Nuclear Sciences, on three HPGe detectors. The results were compared to the experimentally obtained efficiency, and further validation is performed by measuring reference materials issued within the framework of several interlaboratory intercomparisons. The analysis of the results showed that the efficiency transfer produces good results with the discrepancies within the limits of the measurement uncertainty. Also, for intercomparison measurement, utest criterion for the trueness of the result was applied showing that the majority of the obtained results were acceptable. Some difficulties were identified, and the ways to overcome them were discussed.

scholarly journals Dopant compensation in alloyed CH3NH3PbBr3−xClx perovskite single crystals for gamma-ray spectroscopy

2017 ◽  
Vol 16 (8) ◽  
pp. 826-833 ◽  
Author(s):  
Haotong Wei ◽  
Dylan DeSantis ◽  
Wei Wei ◽  
Yehao Deng ◽  
Dengyang Guo ◽  
...  
Keyword(s):  
Single Crystals ◽  
Gamma Ray ◽  
Gamma Ray Spectroscopy

A NEUTRON-INDUCED GAMMA-RAY SPECTROSCOPY LOGGING METHOD FOR DETERMINING FORMATION WATER SALINITY

2019 ◽  
Author(s):  
Lili Tian ◽  
Feng Zhang ◽  
Quanying Zhang ◽  
Qian Chen ◽  
Xinguang Wang ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Water Salinity ◽  
Formation Water ◽  
Gamma Ray Spectroscopy ◽  
Formation Water Salinity
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