Evaluation of a Boron-lined Neutron Detector
Title | Evaluation of a Boron-lined Neutron Detector PDF eBook |
Author | B. M. Van der Ende |
Publisher | |
Pages | |
Release | 2014 |
Genre | |
ISBN |
Boron-Lined Neutron Detector Measurements
Title | Boron-Lined Neutron Detector Measurements PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2010 |
Genre | |
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PNNL-18938 Revision 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. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. 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. Reported here are the results of tests of a newly designed boron-lined proportional counter option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of two successive prototypes of a system manufactured by GE Reuter Stokes.
Boron-Lined Straw-Tube Neutron Detector Test
Title | Boron-Lined Straw-Tube Neutron Detector Test PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2010 |
Genre | |
ISBN |
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. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. 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. Reported here are the results of tests of a boron-lined proportional counter design variation. In the testing described here, the neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Proportional Technologies, Inc, was tested.
Boron-Lined Multichamber and Conventional Neutron Proportional Counter Tests
Title | Boron-Lined Multichamber and Conventional Neutron Proportional Counter Tests PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2010 |
Genre | |
ISBN |
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. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. 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 (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined, multichamber proportional counter manufactured by LND, Inc. Also reported are results obtained with an earlier design of conventional, boron-lined, proportional counters from LND. This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detectors.
Boron-Lined Multitube Neutron Proportional Counter Test
Title | Boron-Lined Multitube Neutron Proportional Counter Test PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2010 |
Genre | |
ISBN |
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. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. 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 (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined,?multitube? proportional counter manufactured by Centronic Ltd. (Surry, U.K. and Houston, TX). This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detector.
Literature Search on Neutron Detectors
Title | Literature Search on Neutron Detectors PDF eBook |
Author | Frances L. Sachs |
Publisher | |
Pages | 82 |
Release | 1951 |
Genre | Neutrons |
ISBN |
A Methane Proportional Counter System for Natural Radiocarbon Measurements
Title | A Methane Proportional Counter System for Natural Radiocarbon Measurements PDF eBook |
Author | Ward Diethorn |
Publisher | |
Pages | 158 |
Release | 1956 |
Genre | Carbon |
ISBN |