Gamma Background Radiations and Measurements with Applications

ALGORITHM OF DETECTION OF OPTICAL PULSE SIGNALS IN THE CONDITIONS OF BACKGROUND RADIATIONS

Scientific and Technical Volga region Bulletin ◽

10.24153/2079-5920-2018-8-5-129-132 ◽

2018 ◽

Vol 8 (5) ◽

pp. 129-132

Author(s):

V.V. Panichev ◽

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N.A. Solovyov ◽

A.M. Semyonov ◽

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...

Keyword(s):

Optical Pulse ◽

Background Radiations

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Correlation of VLF-EM Data with Radiometric Measurements: Implications for Uranium Exploration around Beldih, South Purulia Shear Zone, India

International Journal of Geophysics ◽

10.1155/2014/969462 ◽

2014 ◽

Vol 2014 ◽

pp. 1-13 ◽

Cited By ~ 4

Author(s):

Saurabh Mittal ◽

S. P. Sharma ◽

Arkoprovo Biswas ◽

D. Sengupta

Keyword(s):

Shear Zone ◽

High Surface ◽

Uranium Mineralization ◽

Subsurface Structure ◽

High Radiation ◽

Background Radiations ◽

Radiometric Measurements ◽

Uranium Exploration ◽

Radioactive Minerals ◽

Open Cast

This study is an attempt to correlate VLF-EM data with the radiometric measurements to decipher the subsurface structure and to locate uranium mineralization in the shear zone. The study area is around Beldih mine which is an open cast apatite mine located on the South Purulia Shear Zone. VLF method has been applied to map the structure and the presence of radioactive minerals has been delineated by the detection of highαandγcounts with respect to the background radiations. High radiation counts and high surfaceγactivity are found just above the higher apparent current-density zones in all the profiles studied, at various locations, indicating uranium and/or thorium mineralization as well as good correlation between these techniques.

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Features of gamma background variations in the surface air layer

Bulletin of the Russian Academy of Sciences Physics ◽

10.3103/s1062873813050079 ◽

2013 ◽

Vol 77 (5) ◽

pp. 572-574 ◽

Cited By ~ 2

Author(s):

Yu. V. Balabin ◽

A. V. Germanenko ◽

B. B. Gvozdevsky ◽

E. V. Vashenyuk

Keyword(s):

Gamma Background ◽

Surface Air Layer

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Fast neutron heterogeneous scintillation detector with high discrimination of gamma background

Izvestiya Wysshikh Uchebnykh Zawedeniy Yadernaya Energetika ◽

10.26583/npe.2015.3.03 ◽

2015 ◽

Vol 2015 (3) ◽

pp. 31-39

Author(s):

Yuri Illarionovich Chernukhin ◽

Alexei Alexandrovich Yudov ◽

Sergey Ivanovich Streltsov

Keyword(s):

Fast Neutron ◽

Scintillation Detector ◽

Gamma Background ◽

High Discrimination

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Gamma background measurements in the Gran Sasso National Laboratory

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-012-1990-9 ◽

2012 ◽

Vol 295 (1) ◽

pp. 749-754 ◽

Cited By ~ 7

Author(s):

Dariusz Malczewski ◽

Jan Kisiel ◽

Jerzy Dorda

Keyword(s):

National Laboratory ◽

Gamma Background

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Elemental Analysis and Current-Voltage Characteristics of LiZnP and LiZnAs Samples for Solid-State Neutron Detectors

MRS Proceedings ◽

10.1557/opl.2013.1061 ◽

2013 ◽

Vol 1576 ◽

Author(s):

Benjamin W. Montag ◽

Michael A. Reichenberger ◽

Kevin R. Arpin ◽

Kyle A. Nelson ◽

Philip B. Ugorowski ◽

...

Keyword(s):

Inductively Coupled Plasma ◽

High Efficiency ◽

Electrical Characterization ◽

Atomic Emission ◽

Bulk Single Crystal ◽

Neutron Detectors ◽

Background Radiations ◽

Inductively Coupled ◽

Current Voltage ◽

Silver Epoxy

ABSTRACTResearch for a reliable solid-form semiconductor neutron detector continues because such a device would have greater efficiency, in a compact form, than present day gas-filled 3He and 10BF3 detectors. The 6Li(n,t)4He reaction yields a total Q value of 4.78 MeV, larger than 10B, and easily identified above background radiations. Hence, devices composed of either natural Li (nominally 7.5% 6Li) or enriched 6Li (usually 95% 6Li) may provide a semiconductor material for compact high efficiency neutron detectors. A sub-branch of the III-V semiconductors, the filled tetrahedral compounds, AIBIICV, known as Nowotny-Juza compounds, are known for their desirable cubic crystal structure, and were originally studied for photonic applications. Equimolar portions of Li, Zn, and P or As were sealed under vacuum (10-6 Torr) in quartz ampoules with a graphite lining, loaded into a compounding furnace, and heated to 560 °C to form the ternary compound, LiZnP or LiZnAs, and further annealed to promote crystallization. The chemical composition of the synthesized starting material was confirmed at Galbraith Laboratories, Inc. by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), which showed the compounds were reacted in equal ratios, 1-1-1, to form ternary compounds. Bulk single crystal samples were grown by a high temperature technique described elsewhere. Samples were cut, polished, and prepared for electrical characterization by depositing a Ti/Au contact onto one side of the one of the samples and using silver epoxy to form the other contact. Current-voltage curves were collected for a sample with silver epoxy for both anode and cathode contact, and for a sample with a Ti-Au anode contact and silver epoxy cathode contact. A much higher resistivity was calculated, 6.6 x 1010 Ω·cm, for the sample with a Ti-Au contact compared the high conductivity seen with the sample using silver epoxy contacts.

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