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Direct conversion of spent fuel to High-Level-Waste (HLW) glass

Description: The Glass Material Oxidation and Dissolution System (GMODS) is a recently invented process for the direct, single-step conversion of spent nuclear fuel (SNF) to high-level waste (HLW) glass. GMODS converts metals, ceramics, organics, and amorphous solids to glass in a single step. Conventional vitrification technology can not accept feeds containing metals or carbon. The GMODS has the potential to solve several issues associated with the disposal of various US Department of Energy (DOE) miscell… more
Date: September 20, 1994
Creator: Forsberg, C. W.; Beahm, E. C.; Parker, G. W. & Rudolph, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Photoionizing Trapped Highly Charged Ions with Synchrotron Radiation

Description: Photoabsorption by highly charged ions plays an essential role in astrophysical plasmas. Diagnostics of photoionized plasmas surrounding binary systems rely heavily on precise identification of absorption lines and on the knowledge of their cross sections and widths. Novel experiments using an electron beam ion trap, FLASH EBIT, in combination with monochromatic synchrotron radiation allow us to investigate ions in charge states hitherto out of reach. Trapped ions can be prepared in any charge … more
Date: September 12, 2011
Creator: Crespo, J. R.; Simon, M.; Beilmann, C.; Rudolph, J.; Steinbruegge, R.; Eberle, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FIRST DEMONSTRATION OF ELECTRON BEAM GGENERATION AND CHARACTERIZATION WITH AN ALL SUPERCONDUCTING RADIO-FREQUENCY (SRF) PHOTOINJECTOR*

Description: In preparation for a high brightness, high average current electron source for the energy-recovery linac BERLinPro an all superconducting radio-frequency photoinjector is now in operation at Helmholtz-Zentrum Berlin. The aim of this experiment is beam demonstration with a high brightness electron source able to generate sub-ps pulse length electron bunches from a superconducting (SC) cathode film made of Pb coated on the backwall of a Nb SRF cavity. This paper describes the setup of the experim… more
Date: September 1, 2011
Creator: Kamps, T.; Barday, R.; Jankowiak, A.; Knobloch, J.; Kugeler, O.; Matveenko, A. N. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

OPERATIONAL EXPERIENCE WITH THE Nb/Pb SRF PHOTOELECTRON GUN*

Description: SRF photoelectron guns offer the promise of high brightness, high average current beam production for the next generation of accelerator driven light sources such as free electron lasers, THz radiation sources or energy-recovery linac driven synchrotron radiation sources. In a first step a fully superconducting RF (SRF) photoelectron gun is under development by a collaboration between HZB, DESY, JLAB, BNL and NCBJ. The aim of the experiment is to understand and improve the performance of a Nb S… more
Date: July 1, 2012
Creator: Kamps, T.; Barday, R.; Jankowiak, A.; Knoblock, J.; Kugeler, O.; Matveenko, A. N. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FIRST CHARACTERIZATION OF A FULLY SUPERCONDUCTING RF PHOTOINJECTOR CAVITY

Description: As a first step towards a high brightness, high average current electron source for the BERLinPro ERL a fully superconducting photo-injector was developed by HZB in collaboration with JLab, DESY and the A. Soltan Institute. This cavity-injector ensemble is made up of a 1.6-cell superconducting cavity with a superconducting lead cathode deposited on the half-cell backwall. A superconducting solenoid is used for emittance compensation. This system, including a diagnostics beamline, has been insta… more
Date: September 1, 2011
Creator: Neumann, A.; Barday, R.; Jankowiak, A.; Kamps, T.; Knobloch, J.; Kugeler, O. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurements of nonmethane hydrocarbons in Phoenix, Arizona

Description: Nonmethane hydrocarbons (NMHCs) are precursors to oxidant formation. They are oxidized by hydroxyl radical (OH), forming a complex mixture of peroxy radicals that oxidize NO to NO{sub 2} without consuming ozone (O{sub 3}) and thus allow O{sub 3} to increase in the atmospheric boundary layer. The reactivities of the NMHCs that compose biogenic and anthropogenic emissions vary greatly. For example, isoprene, which is emitted by deciduous vegetation, has an atmospheric lifetime with respect to oxi… more
Date: October 12, 1999
Creator: Doskey, P. V.; Kotamarthi, V. R. & Rudolph, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Conversion of plutonium scrap and residue to boroilicate glass using the GMODS process

Description: Plutonium scrap and residue represent major national and international concerns because (1) significant environmental, safety, and health (ES&H) problems have been identified with their storage; (2) all plutonium recovered from the black market in Europe has been from this category; (3) storage costs are high; and (4) safeguards are difficult. It is proposed to address these problems by conversion of plutonium scrap and residue to a CRACHIP (CRiticality, Aerosol, and CHemically Inert Plutonium)… more
Date: November 28, 1995
Creator: Forsberg, C. W.; Beahm, E. C.; Parker, G. W.; Rudolph, J.; Elam, K. R. & Ferrada, J. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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