Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
The overall goal of this LDRD project was to develop instruments for use in the management of radioactive and hazardous wastes. Devices for identifying and imaging such wastes are critical to developing environmental remediation strategies. Field portable units are required to enable the on-site analysis of solids, liquids, and gas effluents. Red mercuric iodide ([alpha]-HgI2) is a semiconductor material that can be operated as a high-energy-resolution radiation detector at ambient temperatures. This property provides the needed performance of conventional germanium- and silicon-based devices, while eliminating the need for the cryogenic cooling of such instruments. The first year of this project focused on improving the materials properties of the mercuric iodide to enable the new sensor technology; in particular the charge carrier traps limiting device performance were determined and eliminated. The second year involved the development of a field portable x-ray fluorescence analyzer for compositional analyses. The third and final year of the project focused on the development of imaging sensors to provide the capability for mapping the composition of waste masses. This project resulted in instruments useful not only for managing hazardous and radioactive wastes, but also in a variety of industrial and national security applications.
Development of a Portable X-ray and Gamma-ray Detector Instrument and Imaging Camera for Use in Radioactive and Hazardous Materials Management
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
The overall goal of this LDRD project was to develop instruments for use in the management of radioactive and hazardous wastes. Devices for identifying and imaging such wastes are critical to developing environmental remediation strategies. Field portable units are required to enable the on-site analysis of solids, liquids, and gas effluents. Red mercuric iodide ([alpha]-HgI2) is a semiconductor material that can be operated as a high-energy-resolution radiation detector at ambient temperatures. This property provides the needed performance of conventional germanium- and silicon-based devices, while eliminating the need for the cryogenic cooling of such instruments. The first year of this project focused on improving the materials properties of the mercuric iodide to enable the new sensor technology; in particular the charge carrier traps limiting device performance were determined and eliminated. The second year involved the development of a field portable x-ray fluorescence analyzer for compositional analyses. The third and final year of the project focused on the development of imaging sensors to provide the capability for mapping the composition of waste masses. This project resulted in instruments useful not only for managing hazardous and radioactive wastes, but also in a variety of industrial and national security applications.
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
The overall goal of this LDRD project was to develop instruments for use in the management of radioactive and hazardous wastes. Devices for identifying and imaging such wastes are critical to developing environmental remediation strategies. Field portable units are required to enable the on-site analysis of solids, liquids, and gas effluents. Red mercuric iodide ([alpha]-HgI2) is a semiconductor material that can be operated as a high-energy-resolution radiation detector at ambient temperatures. This property provides the needed performance of conventional germanium- and silicon-based devices, while eliminating the need for the cryogenic cooling of such instruments. The first year of this project focused on improving the materials properties of the mercuric iodide to enable the new sensor technology; in particular the charge carrier traps limiting device performance were determined and eliminated. The second year involved the development of a field portable x-ray fluorescence analyzer for compositional analyses. The third and final year of the project focused on the development of imaging sensors to provide the capability for mapping the composition of waste masses. This project resulted in instruments useful not only for managing hazardous and radioactive wastes, but also in a variety of industrial and national security applications.
X-ray and Gamma-ray Detectors and Applications IV
Author: Ralph B. James
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 422
Book Description
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 422
Book Description
Energy and Water Development Appropriations for 1999
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 2032
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 2032
Book Description
Energy and Water Development Appropriations for 1997: Nuclear Regulatory Commission
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1452
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1452
Book Description
Energy and Water Development Appropriations for 1998: Department of Energy
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1262
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1262
Book Description
Energy and Water Development Appropriations for 1997
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1464
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1464
Book Description
Energy and Water Development Appropriations for 1998
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1278
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1278
Book Description
Energy and Water Development Appropriations for 1999: Secretary of Energy, Departmental administration
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1890
Book Description
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1890
Book Description
Development of Gamma Ray Imaging Cameras
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
Book Description
In January 1990, the Department of Energy initiated this project with the objective to develop the technology for general purpose, portable gamma ray imaging cameras useful to the nuclear industry. The ultimate goal of this R D initiative is to develop the analog to the color television camera where the camera would respond to gamma rays instead of visible photons. The two-dimensional real-time image would be displayed would indicate the geometric location of the radiation relative to the camera's orientation, while the brightness and color'' would indicate the intensity and energy of the radiation (and hence identify the emitting isotope). There is a strong motivation for developing such a device for applications within the nuclear industry, for both high- and low-level waste repositories, for environmental restoration problems, and for space and fusion applications. At present, there are no general purpose radiation cameras capable of producing spectral images for such practical applications. At the time of this writing, work on this project has been underway for almost 18 months. Substantial progress has been made in the project's two primary areas: mechanically-collimated (MCC) and electronically-collimated camera (ECC) designs. We present developments covering the mechanically-collimated design, and then discuss the efforts on the electronically-collimated camera. The renewal proposal addresses the continuing R D efforts for the third year effort. 8 refs.
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
Book Description
In January 1990, the Department of Energy initiated this project with the objective to develop the technology for general purpose, portable gamma ray imaging cameras useful to the nuclear industry. The ultimate goal of this R D initiative is to develop the analog to the color television camera where the camera would respond to gamma rays instead of visible photons. The two-dimensional real-time image would be displayed would indicate the geometric location of the radiation relative to the camera's orientation, while the brightness and color'' would indicate the intensity and energy of the radiation (and hence identify the emitting isotope). There is a strong motivation for developing such a device for applications within the nuclear industry, for both high- and low-level waste repositories, for environmental restoration problems, and for space and fusion applications. At present, there are no general purpose radiation cameras capable of producing spectral images for such practical applications. At the time of this writing, work on this project has been underway for almost 18 months. Substantial progress has been made in the project's two primary areas: mechanically-collimated (MCC) and electronically-collimated camera (ECC) designs. We present developments covering the mechanically-collimated design, and then discuss the efforts on the electronically-collimated camera. The renewal proposal addresses the continuing R D efforts for the third year effort. 8 refs.
Development and Characterization of a High Resolution Portable Gamma Spectrometer
Author: Muhammad Ali
Publisher:
ISBN: 9780494875032
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN: 9780494875032
Category :
Languages : en
Pages :
Book Description