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Design of a proof of principle high current transport experiment

Description: Preliminary designs of an intense heavy-ion beam transport experiment to test issues for Heavy Ion Fusion (HIF) are presented. This transport channel will represent a single high current density beam at full driver scale and will evaluate practical issues such as aperture filling factors, electrons, halo, imperfect vacuum, etc., that cannot be fully tested using scaled experiments. Various machine configurations are evaluated in the context of the range of physics and technology issues that can… more
Date: January 15, 2000
Creator: Lund, S. M.; Bangerter, R. O.; Barnard, J. J.; Celata, C. M.; Faltens, A.; Friedman, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Repair of DNA damaged by ionizing radiation and other oxidative agents in yeast and human

Description: OAK B202 Treatment of cells with oxidative DNA damaging agents such as ionizing radiation and hydrogen peroxide produces .OH radicals which attack DNA, producing single strand breaks and double strand breaks that have a 3'-blocked terminus with a phosphoglycolate or a phosphate group attached to the 3'-terminus. While DNA strand breaks with 3'-blocked termini are the hallmark of oxidative DNA damage, the mechanisms by which such blocked 3'-termini are removed in eukaryotes remain poorly underst… more
Date: January 15, 2000
Creator: Prakash, Louisek
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Repair of DNA damaged by ionizing radiation and other oxidative agents in yeast and human

Description: Treatment of cells with oxidative DNA damaging agents such as ionizing radiation and hydrogen peroxide produces .OH radicals which attack DNA, producing single strand breaks and double strand breaks that have a 3'-blocked terminus with a phosphoglycolate or a phosphate group attached to the 3'-terminus. While DNA strand breaks with 3'-blocked termini are the hallmark of oxidative DNA damage, the mechanisms by which such blocked 3'-termini are removed in eukaryotes remain poorly understood. The … more
Date: January 15, 2000
Creator: Prakash, Louise
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

K-shell ionization and double-ionization of Au atoms with 1.33 MeV photons

Description: At relativistic energies, the cross section for the atomic photoelectric effect drops off as does the cross section for liberating any bound electron through Compton scattering. However, when the photon energy exceeds twice the rest mass of the electron, ionization may proceed via electron-positron pair creation. We used 1.33 MeV photons impinging on Au thin foils to study double K-shell ionization and vacuum-assisted photoionization. The preliminary results yield a ratio of vacuum-assisted pho… more
Date: January 15, 2000
Creator: Belkacem, A.; Dauvergne, D.; Feinberg, B.; Ionescu, D.; Maddi, J. & Sorensen, A.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Direct Energy Conversion Fission Reactor September through November 1999

Description: OAK - B135 The initial kickoff meeting/brainstorming session was held as Albuquerque with the other participants in this study. The prompt critical pulse reactor was proposed at the brainstorming session. The other participants in this study, Sandia National Laboratories (lead), Los Alamos National Laboratory, University of Florida and Texas A and M University are separately funded and their work is separately reported. The combined reporting is done by Sandia.
Date: January 15, 2000
Creator: Brown, Lloyd C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diesel Emission Control -- Sulfur Effects (DECSE) Program; Phase I Interim Data Report No. 4: Diesel Particulate Filters -- Final Report

Description: The Diesel Emission Control-Sulfur Effects (DECSE) is a joint government/industry program to determine the impact of diesel fuel sulfur levels on emission control systems whose use could lower emissions of nitrogen oxides (NOx) and particulate matter (PM) from on-highway trucks in the 2002--2004 model years. Phase 1 of the program was developed with the following objectives in mind: (1) evaluate the effects of varying the level of sulfur content in the fuel on the emission reduction performance… more
Date: January 15, 2000
Creator: DOE; ORNL; NREL; EMA & MECA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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