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Author : James P. Granger
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (266 download)
Download or read book Thermal Neutron Detection with Li6 Enriched Glass Scintillators written by James P. Granger and published by . This book was released on 1991 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : DIANE Publishing
ISBN 13 : 9781422328392
Total Pages : pages
Book Rating : 4.3/5 (283 download)
Download or read book First Tests of 6Li Doped Glass Scintillators for Ultracold Neutron Detection written by and published by DIANE Publishing. This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (958 download)
Download or read book Thermal Neutron Detection Using Alkali Halide Scintillators with Li-6 and Pulse Shape Discrimination written by and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (685 download)
Download or read book Scintillating Glass Fiber Neutron Senors written by and published by . This book was released on 1994 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerium-doped lithium-silicate glass fibers have been developed at Pacific Northwest Laboratory (PNL) for use as thermal neutron detectors. By using highly-enriched 6 Li, these fibers efficiently capture thermal neutrons and produce scintillation light that can be detected at the ends of the fibers. Advantages of scintillating fibers over 3He or BF3 proportional tubes include flexibility in geometric configuration, ruggedness in high-vibration environments, and less detector weight for the same neutron sensitivity. This paper describes the performance of these scintillating fibers with regard to count rates, pulse height spectra, absolute efficiencies, and neutron/gamma discrimination. Fibers with light transmission lengths (1/e) of greater than 2 m have been produced at PNL. Neutron sensors in fiber form allow development of a variety of neutron detectors packaged in previously unavailable configurations. Brief descriptions of some of the devices already produced are included to illustrate these possibilities.
Author : Emory Neudeck Kemler (1LT, USAF., Jr)
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (132 download)
Download or read book The Use of Boron Loaded Silane Glass Scintillators for Thermal Neutron Detection written by Emory Neudeck Kemler (1LT, USAF., Jr) and published by . This book was released on 1959 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew Neil Mabe
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (122 download)
Download or read book Neutron Scintillation Detectors Based on Polymers Containing Lithium-6 for Radiation Portal Monitor Applications written by Andrew Neil Mabe and published by . This book was released on 2013 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work presented herein describes an investigation of four main types of thin film polymer scintillators containing 6Li [lithium-6] for neutron detection: polystyrene containing 6LiF [lithium-6 fluoride] and a preblended fluor mixture comprising 2,5-diphenyloxazole and 1,4-bis(5-phenyloxazol-2-yl)benzene; poly(styrene-co-lithium maleate) containing salicylic acid; poly[styrene-co-lithium maleate-co-2-phenyl-5-(4-vinylphenyl)oxazole]; and poly(styrene-co-lithium 4-vinylbenzoate). A variety of chemical and physical characterizations as well as optical and scintillation characterizations were performed to guide the development of optimized compositions of each type of polymer film. The scintillation performances of optimized compositions of each type of polymer film were calibrated using GS20 lithium glass and evaluated against neutron detection and neutron/gamma-ray discrimination criteria established for radiation portal monitors. Thin films were fabricated 2 inches in diameter over a variety of thicknesses using solution-casting methods. Investigation of polystyrene-based films by photoluminescence and scintillation indicated that the optimum concentration of fluor was 5.00%. Optimum neutron/gamma-ray discrimination was achieved for 50 micrometer thick films containing 10% 6LiF [lithium-6 fluoride]. Two transparent lithium-containing polymers were successfully synthesized: poly(styrene-co-lithium maleate) containing salicylic acid and poly[styrene-co-lithium maleate-co-2-phenyl-5-(4-vinylphenyl)oxazole]. To the author's knowledge, the latter polymer represents the first polymer comprising the matrix, the thermal neutron capture nuclide 6Li [lithium-6], and the fluor that has been synthesized for the purpose of thermal neutron detection. The polymer poly(styrene-co-lithium 4-vinylbenzoate) could not be solvated and decomposed below its melting temperature and was thus considered not useful for this application. The polystyrene-based materials had the greatest light yields whereas the poly[styrene-co-lithium maleate-co-2-phenyl-5-(4-vinylphenyl)oxazole] material had the best neutron/gamma-ray discrimination properties. All three classes of materials can be used to satisfy the detection criteria in the current radiation portal monitor footprint by implementing a multilayer format.
Author : Cécile Martine Combes
Publisher :
ISBN 13 : 9789040718151
Total Pages : 0 pages
Book Rating : 4.7/5 (181 download)
Download or read book Scintillation of 6Li-based Materials for Thermal-neutron Detection written by Cécile Martine Combes and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pierre Convert
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (42 download)
Download or read book Position-sensitive Detection of Thermal Neutrons written by Pierre Convert and published by . This book was released on 1983 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Emory Naudeck Kemler
Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (19 download)
Download or read book The Use of Boron Loaded Silane Glass Scintillators for Thermal Neutron Detection written by Emory Naudeck Kemler and published by . This book was released on 1959 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (16 download)
Download or read book Thermal Neutron Detection Using Alkali Halide Scintillators with 6Li and Pulse Shape Discrimination written by and published by . This book was released on 2011 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lithium-containing Scintillators for Thermal Neutron, Fast Neutron, and Gamma Detection written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In one embodiment, a scintillator includes a scintillator material; a primary fluor, and a Li-containing compound, where the Li-containing compound is soluble in the primary fluor, and where the scintillator exhibits an optical response signature for thermal neutrons that is different than an optical response signature for fast neutrons and gamma rays.
Author : Eric Anthony Burgett
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (757 download)
Download or read book Novel Neutron Detectors written by Eric Anthony Burgett and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new set of thermal neutron detectors has been developed as a near term 3He tube replacement. The zinc oxide scintillator is an ultrafast scintillator which can be doped to have performance equal to or superior to 3He tubes. Originally investigated in the early 1950s, this room temperature semiconductor has been evaluated as a thermal neutron scintillator. Zinc oxide can be doped with different nuclei to tune the band gap, improve optical clarity, and improve the thermal neutron detection efficiency. The effects of various dopant effects on the scintillation properties, materials properties, and crystal growth parameters have been analyzed. Two different growth modalities were investigated: bulk melt grown materials as well as thin film scintillators grown by metalorganic chemical vapor deposition (MOCVD). MOCVD has shown significant advantages including precise thickness control, high dopant incorporation, and epitaxial coatings of neutron target nuclei. Detector designs were modeled and simulated to design an improved thermal neutron detector using doped ZnO layers, conformal coatings and light collection improvements including Bragg reflectors and photonic crystal structures. The detectors have been tested for crystalline quality by XRD and FTIR spectroscopy, for scintillation efficiency by photo-luminescence spectroscopy, and for neutron detection efficiency by alpha and neutron radiation tests. Lastly, a novel method for improving light collection efficiency has been investigated, the creation of a photonic crystal scintillator. Here, the flow of optical light photons is controlled through an engineered structure created with the scintillator materials. This work has resulted in a novel radiation detection material for the near term replacement of 3He tubes with performance characteristics equal to or superior to that of 3He.
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Author : John W. Kunstadter
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (289 download)
Download or read book Thermal Neutron Detection by N, [gamma] Reactions Using Scintillation Counters written by John W. Kunstadter and published by . This book was released on 1949 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download A New 1/v Thermal Neutron Detector Based on the Li 6 (n,[alpha]) H 3 Reaction in Lithium Fluoride PDF Online Free](https://books.google.com/books/content/images/frontcover/-zOCHAAACAAJ?fife=w200-h370)
Author : Olof Henderson Scott
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (299 download)
Download or read book A New 1/v Thermal Neutron Detector Based on the Li 6 (n,[alpha]) H 3 Reaction in Lithium Fluoride written by Olof Henderson Scott and published by . This book was released on 1966 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. W. Dalton
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (785 download)
Download or read book Low Energy Neutron Detection Efficiency of Lithium Glass and Boronloaded Liquid Scintillation Detectors written by A. W. Dalton and published by . This book was released on 1969 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Douglas Allen
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.3/5 (91 download)
Download or read book Neutron Detection written by William Douglas Allen and published by . This book was released on 1960 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Report on Actinide Glass Scintillators for Fast Neutron Detection written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
