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A count rate based contamination control standard for electron accelerators

Description: Accelerators of sufficient energy and particle fluence can produce radioactivity as an unwanted byproduct. The radioactivity is typically imbedded in structural materials but may also be removable from surfaces. Many of these radionuclides decay by positron emission or electron capture; they often have long half lives and produce photons of low energy and yield making detection by standard devices difficult. The contamination control limit used throughout the US nuclear industry and the Department of Energy is 1,000 disintegrations per minute. This limit is based on the detection threshold of pancake type Geiger-Mueller probes for radionuclides of relatively high radiotoxicity, such as cobalt-60. Several radionuclides of concern at a high energy electron accelerator are compared in terms of radiotoxicity with radionuclides commonly found in the nuclear industry. Based on this comparison, a count-rate based contamination control limit and associated measurement strategy is proposed which provides adequate detection of contamination at accelerators without an increase in risk.
Date: December 31, 1996
Creator: May, R. T. & Schwahn, S. O.
Partner: UNT Libraries Government Documents Department

Radiation control aspects of the civil construction for a high power free electron laser (FEL) facility

Description: The paper discusses some of the assumptions and methods employed for the control of ionizing radiation in the specifications for the civil construction of a planned free electron laser facility based on a 200 MeV, 5 mA superconducting recirculation electron accelerator. Consideration is given firstly to the way in which the underlying building configuration and siting aspects were optimized on the basis of the early assumptions of beam loss and radiation goals. The various design requirements for radiation protection are then considered, and how they were folded into an aesthetically pleasing and functional building.
Date: December 31, 1996
Creator: Dunn, T.; Neil, G. & Stapleton, G.
Partner: UNT Libraries Government Documents Department

DOE pollution prevention in the 21st century. Proceedings

Description: This CD-ROM contains the proceedings from the DOE Pollution Prevention in the 21st Century Conference XII held July 9-11, 1996. Topics included model facilities, federal and NEPA stakeholders, microchemistry, source 4 solvents and reduction, education and outreach planning, return on investment, energy management, decontamination and decommissioning, planning and regulations, environmental restoration, solid waste, recycling, affirmative procurement in the executive branch, construction and demolition, international and ISO 14000, and poster sessions.
Date: December 31, 1996
Partner: UNT Libraries Government Documents Department

[News Clip: Stout]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 10pm.
Date: December 12, 1996, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: S-Reax]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 5pm.
Date: December 4, 1996, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Routier]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 10pm.
Date: December 5, 1996, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Lotter]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 5pm.
Date: December 18, 1996, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Panther]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 10, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Panthers trial]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 11, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Michaels Trial]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 5pm.
Date: December 10, 1996, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Michaels trial]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 5pm.
Date: December 10, 1996, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: MHMR probe]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 10pm.
Date: December 2, 1996, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Reax Lett]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 4, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Tilton]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 20, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Tilton]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 5, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Tilton]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 6pm.
Date: December 19, 1996, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Tilton]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 5pm.
Date: December 27, 1996, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Black Panther]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. Story aired at 10pm.
Date: December 10, 1996, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections