Some Neutron Detection Investigations
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Some Neutron Detection Investigations
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Author : Carl Oliver Muehlhause
language : en
Publisher:
Release Date : 1953
Some Neutron Detection Investigations written by Carl Oliver Muehlhause and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Neutron counters categories.
A Theoretical Investigation Of Absolute Neutron Detection
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Author : A. W. Dalton
language : en
Publisher:
Release Date : 1967
A Theoretical Investigation Of Absolute Neutron Detection written by A. W. Dalton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Neutron counters categories.
An Investigation Of Neutron Detection Systems For The Selelction Of A Detector To Be Used In A Neutron Polarization Measurement
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Author : Preston W. Forbes
language : en
Publisher:
Release Date : 1964
An Investigation Of Neutron Detection Systems For The Selelction Of A Detector To Be Used In A Neutron Polarization Measurement written by Preston W. Forbes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.
Boron Trifluoride For Neutron Detection Preparation And Investigation Of The Product
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Author : Atomic Energy Research Establishment (Harwell, England)
language : en
Publisher:
Release Date : 1951
Boron Trifluoride For Neutron Detection Preparation And Investigation Of The Product written by Atomic Energy Research Establishment (Harwell, England) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with categories.
Investigation Of Individual Neutron Monitors On The Basis Of Etched Track Detectors
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Author : Wolfgang G. Alberts
language : de
Publisher:
Release Date : 1992
Investigation Of Individual Neutron Monitors On The Basis Of Etched Track Detectors written by Wolfgang G. Alberts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Particle track etching categories.
Boron Trifluoride For Neutron Detection Preparation And Investigation Of The Product By F Hudswell J S Nairn K L Wilkinson
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Author : Frederick HUDSWELL
language : en
Publisher:
Release Date : 1951
Boron Trifluoride For Neutron Detection Preparation And Investigation Of The Product By F Hudswell J S Nairn K L Wilkinson written by Frederick HUDSWELL and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with categories.
Texture Investigation Of Fcc Metals Using Position Sensitive Neutron Detector
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Author : L. Cser
language : en
Publisher:
Release Date : 1988
Texture Investigation Of Fcc Metals Using Position Sensitive Neutron Detector written by L. Cser and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Alternative Neutron Detection Testing Summary
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Author :
language : en
Publisher:
Release Date : 2010
Alternative Neutron Detection Testing Summary written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. Most currently deployed radiation portal monitors (RPMs) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large area neutron detector. This type of neutron detector is used in the TSA and other RPMs installed in international locations and in the Ludlum and Science Applications International Corporation RPMs deployed primarily for domestic applications. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated wavelength-shifting plastic fibers. Reported here is a summary of the testing carried out at Pacific Northwest National Laboratory on these technologies to date, as well as measurements on 3He tubes at various pressures. Details on these measurements are available in the referenced reports. Sponsors of these tests include the Department of Energy (DOE), Department of Homeland Security (DHS), and the Department of Defense (DoD), as well as internal Pacific Northwest National Laboratory funds.
Neutron Detection
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Author : William D. Allen
language : en
Publisher:
Release Date : 1969
Neutron Detection written by William D. Allen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Investigation Of Neutron Detector Response To Varying Temperature And Water Content For Geothermal Applications
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Author :
language : en
Publisher:
Release Date : 2010
Investigation Of Neutron Detector Response To Varying Temperature And Water Content For Geothermal Applications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Nuclear logging techniques have been used for oil well logging applications for decades. The basic principle is to use a neutron and/or photon source and neutron and photon detectors for characterization purposes. Although the technology has matured, it is not directly applicable to geothermal logging due to even more challenging environmental conditions, both in terms of temperature and pressure. For geothermal logging, the operating temperature can go up to 376 C for depths up to 10,000 km. In this paper, the preliminary computational results for thermal neutron detector response for varying temperature and water content for geothermal applications are presented. In this summary, preliminary results for neutron detector response for varying formation temperature and water content are presented. The analysis is performed for a steady state source (AmBe) and time dependent source (PNG) in pulsed mode. The computational results show significant sensitivity to water content as well as temperature changes for both steady state and time dependent measurements. As expected, the most significant change is due to the temperature change for S([alpha], [beta]) nuclear data instead of individual isotope cross sections for the formation. Clearly, this is partially because of the fact that strong absorbers (i.e., chlorine) are not taken into account for the analysis at this time. The computational analysis was performed using the temperature dependent data in the ENDF/B-VII libraries, supplied with MCNP. Currently, the data for intermediate temperatures are being generated using NJOY and validated. A series of measurements are planned to validate the computational results. Further measurements are planned to determine the neutron and photon detector response as a function of temperature. The tests will be performed for temperatures up to 400 C.