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Extractor Configurations for a Heavy Ion Fusion Volume Source

Description: In order for volume sources to deliver the current (e.g., 0.8 A of Ar{sup +} per module) and brightness necessary for heavy ion fusion (HIF), they must operate at high current density. Conventional extractor designs for 1 to 2 MeV run into voltage breakdown limitations and cannot easily produce the required current rise time (about one microsecond). We discuss two systems that can overcome these volume-extraction problems. Each uses multichannel preaccelerators followed by a single channel main… more
Date: August 30, 2004
Creator: Anderson, O. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Studies in ion source development for application in heavy ion fusion

Description: The overall purpose of these experiments is to contribute to the development of ion injector technology in order to produce a driver for use in a heavy-ion-fusion (HIF) power generating facility. The overall beam requirements for HIF are quite demanding; a short list of the constraints is the following: (1) Low cost (a large portion of overall cost will come from the beam system); (2) Bright, low emittance beam; (3) Total beam energy 5MJ; (4) Spot size 3mm (radius); (5) Pulse Duration 10ns; (6)… more
Date: May 30, 2004
Creator: Kapica, Jonathan G.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Academy Awards]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 30, 1989, 6:00 p.m.
Duration: 1 minute 21 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Water Infrastructure Funding: Review and Analysis of Current Issues

Description: This report identifies a number of issues likely to receive attention in connection with water infrastructure. It begins with a brief review of federal involvement, describes the current debate about funding needs, and then examines key issues, including what is the nature of the problems to be solved; who will play, and what is the federal role; and questions about mechanisms for delivering federal support, including state-by-state allotment of federal funds.
Date: August 30, 2001
Creator: Copeland, Claudia & Tiemann, Mary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FDA Regulation of Tobacco Products: A Historical, Policy and Legal Analysis

Description: This report begins with an overview of the FDA's 1996 tobacco rule that includes a summary of the agency's arguments for asserting jurisdiction over tobacco products. The report then reviews the 1997 proposed national tobacco settlement, which would have codified the FDA rule and given the agency explicit authority to regulate tobacco products as medical devices.
Date: July 30, 2008
Creator: Redhead, C. Stephen & Burrows, Vanessa K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: DART Diesel]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 30, 1996, 6:00 p.m.
Duration: 59 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: 5th District]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 30, 1996, 10:00 p.m.
Duration: 2 minutes
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Snowmobiles: Environmental Standards and Access to National Parks [Updated September 30, 2002]

Description: This report discusses the environmental impact of snowmobiles and the consequential controversies surrounding their use in national parks, with an emphasis on the lack of established standards for snowmobile emissions and noise pollution. It also examines relevant legislature on the issue.
Date: September 30, 2002
Creator: McCarthy, James E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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