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D-0 End Calorimeter Warm Tube/TeV Dry Air Purge

Description: This Engineering Note studies the design of the Dry Air Purge that is going to flow through the Warm Tube of the End Calorimeter of the D-O Calorimeter. The Tev tubes through the E.C. can be thought of as a cluster of concentric tubes: The Tev tube, the warm (vacuum vessel) tube, 15 layers of superinsulation, the cold (argon vessel) tube, and the Inner Hadronic center support tube. The Dry Air Purge will involve flowing Dry Air through the annular region between the Warm Tube and the Tev Beam P… more
Date: August 14, 1991
Creator: Leibfritz, J. R.
Item Type: Refine your search to only Report
open access

Additional information for impact response of the restart safety rods

Description: WSRC-RP-91-677 studied the structural response of the safety rods under the conditions of brake failure and accidental release. It was concluded that the maximum impact loading to the safety rod is 6020 pounds based on conservative considerations that energy dissipation attributable to fluid resistance and reactor superstructure flexibility. The staffers of the Defense Nuclear Facility Safety Board reviewed the results and inquired about the extent of conservatism. By request of the RESTART tea… more
Date: October 14, 1991
Creator: Yau, W. W. F.
Item Type: Refine your search to only Report
open access

Additional information for impact response of the restart safety rods

Description: WSRC-RP-91-677 studied the structural response of the safety rods under the conditions of brake failure and accidental release. It was concluded that the maximum impact loading to the safety rod is 6020 pounds based on conservative considerations that energy dissipation attributable to fluid resistance and reactor superstructure flexibility. The staffers of the Defense Nuclear Facility Safety Board reviewed the results and inquired about the extent of conservatism. By request of the RESTART tea… more
Date: October 14, 1991
Creator: Yau, W. W. F.
Item Type: Refine your search to only Report
open access

B-jet tagging using electrons at SDC

Description: This note examines b-jet tagging at SDC, using semileptonic b {r arrow} e{upsilon} X electron decays. The main application for this tagging capability would be in the study of Top decays. Thus, we consider Top decays in a reasonable'' mass range (e.g. 110 < Mtop < 170). For completeness, we also consider inclusive QCD production of b-quarks. We are mainly interested in the effects of hadron calorimeter segmentation on the electron efficiency, assuming that similar algorithms are used for electr… more
Date: August 14, 1991
Creator: Wicklund, A. B.
Item Type: Refine your search to only Report
open access

The classical EMC effect from few-body systems to nuclear matter: Can binding effects explain it

Description: It is shown that if the effects of nucleon binding on deep inelastic scattering are considered within many-body realistic descriptions of nuclei which include nucleon-nucleon correlations, the EMC effect in light and medium weight nuclei and nuclear matter can be accounted for in the region 0.2 {le} x {le} 0.5, but a systematic discrepancy between theory and experiment remains to be explained for 0.5 {le} x {le} 0.9.
Date: May 14, 1991
Creator: Ciofi degli Atti, C. & Liuti, S.
Item Type: Refine your search to only Report
open access

The classical EMC effect from few-body systems to nuclear matter: Can binding effects explain it?

Description: It is shown that if the effects of nucleon binding on deep inelastic scattering are considered within many-body realistic descriptions of nuclei which include nucleon-nucleon correlations, the EMC effect in light and medium weight nuclei and nuclear matter can be accounted for in the region 0.2 {le} x {le} 0.5, but a systematic discrepancy between theory and experiment remains to be explained for 0.5 {le} x {le} 0.9.
Date: May 14, 1991
Creator: Ciofi degli Atti, C. & Liuti, S.
Item Type: Refine your search to only Report
open access

Commercialization plan for Argonne`s lubricious coatings

Description: This report summarizes an interview conducted with Dr. David S. Grummon, a specialist in ion beam assisted deposition (IBAD) and coatings at Michigan State University, to define the concept and components of an ion beam assisted deposition (IBAD) system; summarizes findings of a literature search conducted to identify prior and current efforts in developing lubricious coatings; and reports on the market potential for Argonne`s IBAD lubricious coating process.
Date: March 14, 1991
Creator: Skackson, R. H.
Item Type: Refine your search to only Report
open access

Commercialization plan for Argonne's lubricious coatings

Description: This report summarizes an interview conducted with Dr. David S. Grummon, a specialist in ion beam assisted deposition (IBAD) and coatings at Michigan State University, to define the concept and components of an ion beam assisted deposition (IBAD) system; summarizes findings of a literature search conducted to identify prior and current efforts in developing lubricious coatings; and reports on the market potential for Argonne's IBAD lubricious coating process.
Date: March 14, 1991
Creator: Skackson, R.H.
Item Type: Refine your search to only Report
open access

(Coordinated research of chemotherapeutic agents and radiopharmaceuticals)

Description: The traveler received a United Nations Development Program (UNDP) Award for Distinguished Scientists to visit Indian Research Institutions including Central Drug Research Institute (CDRI), Lucknow, the host institution, in cooperation with the Council of Scientific and Industrial Research (CSIR) of India. At CDRI, the traveler had meetings to discuss progress and future directions of on-going collaborative research work on nucleosides and had the opportunity to initiate new projects with the di… more
Date: January 14, 1991
Creator: Srivastava, P.C.
Item Type: Refine your search to only Report
open access

D0 Clean Room ODH Analysis Instrument Air Considerations

Description: The ODH problem in this case involves the instrument air line to the clean room. which is isolated by a check valve from the gaseous nitrogen trailer backup source (valve CV787I, see DRG. NO. 3740.510-MA-273995, attached (the 'to purging enclosure' line nms to the clean room)). Normally, the check valve prevents backflow through the instrument air line. But as we all know, valves can fail. The estimated mean failure rate for a check valve to allow reverse flow is 3 {center_dot} 10{sup -7}. Fail… more
Date: January 14, 1991
Creator: Michael, J.
Item Type: Refine your search to only Report
open access

Data summary of gas pressure measurements on the Los Alamos LEDOUX Event. SEA topical report No. TR-91-07

Description: Several sets of gas pressure measurements were fielded on the LEDOUX event to evaluate the experiment room pressure history and the horizontal pressure gradient in the alluvium due to the detonation. The pressure measurements in the zero room and diagnostic drift consisted of fluid filled high pressure tubing running from each of these areas up to pressure transducer packages in their respective cable holes. The pressure gradient in the alluvium was sensed at several locations adjacent to the m… more
Date: June 14, 1991
Creator: Lowry, B.
Item Type: Refine your search to only Report
open access

Development of a catalyst for conversion of syngas-derived materials to isobutylene

Description: The objective of this program is to develop an improved catalyst and process for the conversion of synthesis gas to isobutylene. The research will identify and optimize the key catalyst and process characteristics that give improved performance for CO conversion by a non-Fischer-Tropsch process.
Date: August 14, 1991
Creator: Gajda, G. J. & Barger, P. T.
Item Type: Refine your search to only Report
open access

Development of a catalyst for conversion of syngas-derived materials to isobutylene. Quarterly technical report No. 1, March 15, 1991--June 30, 1991

Description: The objective of this program is to develop an improved catalyst and process for the conversion of synthesis gas to isobutylene. The research will identify and optimize the key catalyst and process characteristics that give improved performance for CO conversion by a non-Fischer-Tropsch process.
Date: August 14, 1991
Creator: Gajda, G. J. & Barger, P. T.
Item Type: Refine your search to only Report
open access

The effect of passive material on the detection of hadrons in calorimeter configurations for the SDC detector

Description: We have used a flexible geometry model of a calorimeter design for SDC to study the effect of passive material in front of the calorimeter and between the barrel and endcap modules on the apparent response to hadrons. The thicknesses of the passive materials have been chosen to closely resemble the currently projected wall thicknesses of the scintillating tile-fiber and liquid-argon calorimeter designs. The liquid-argon model contains about three times the amount of material in its shells compa… more
Date: August 14, 1991
Creator: Kirk, T. B. W. & Trost, H. J.
Item Type: Refine your search to only Report
open access

Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and… more
Date: October 14, 1991
Item Type: Refine your search to only Report
open access

Evaluation of gas-reburning and low NO sub x burners on a wall fired boiler

Description: Clean Coal Technology (CCT) implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of oxides of nitrogen (NO{sub x}), which are precursors of both acid rain and ozone formation. The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become co… more
Date: October 14, 1991
Item Type: Refine your search to only Report
open access

Fluidized-bed copper oxide process

Description: The fluidized-bed copper oxide process was developed to simultaneously remove sulfur dioxide and nitrogen oxide contaminants from the flue gas of coal-fired utility boilers. This dry and regenerable process uses a copper oxide sorbent in a fluidized-bed reactor. Contaminants are removed without generating waste material. (VC)
Date: October 14, 1991
Creator: Shah, P.P.; Takahashi, G.S. & Leshock, D.G.
Item Type: Refine your search to only Report
open access

Fluidized-bed copper oxide process. Proof-of-concept unit design

Description: The fluidized-bed copper oxide process was developed to simultaneously remove sulfur dioxide and nitrogen oxide contaminants from the flue gas of coal-fired utility boilers. This dry and regenerable process uses a copper oxide sorbent in a fluidized-bed reactor. Contaminants are removed without generating waste material. (VC)
Date: October 14, 1991
Creator: Shah, P. P.; Takahashi, G. S. & Leshock, D. G.
Item Type: Refine your search to only Report
open access

Fundamental studies of catalytic processing of synthetic liquids

Description: This project revolves around understanding the fundamental processes involved in the catalytic removal of harmful oxygenated organics present in coal liquids. We are modelling the complex type of sulfided Mo catalyst proposed for these reactions with simple single crystal surfaces. These display a controlled range and number of reaction sites and can be extensively characterized by surface science techniques. We then investigate the reaction pathways for representative simple oxygenates upon th… more
Date: October 14, 1991
Creator: Watson, P. R.
Item Type: Refine your search to only Report
open access

A high resolution detector for H{sup 0} {yields} {gamma}{gamma}

Description: SSC detectors represent a challenging departure, both in size and precision, from currently operating detectors. In this note we enumerate some of the benefits of using high magnetic fields both to simplify the detector and improve its resolution and sensitivity. We have chosen an arrangement optimized to search for the reaction H{sup 0} {yields} {gamma}{gamma}. The arrangement also has the excellent momentum resolution for muons and electrons considered critical for the discovery of such proce… more
Date: January 14, 1991
Creator: Atiya, M.S. & Kycia, T.F.
Item Type: Refine your search to only Report
open access

Inherently safe nuclear-driven internal combustion engines

Description: A family of nuclear driven engines is described in which nuclear energy released by fissioning of uranium or plutonium in a prompt critical assembly is used to heat a working gas. Engine performance is modeled using a code that calculates hydrodynamics, fission energy production, and neutron transport self-consistently. Results are given demonstrating a large negative temperature coefficient that produces self-shutoff of energy production. Reduced fission product inventory and the self-shutoff … more
Date: June 14, 1991
Creator: Alesso, P.; Chow, Tze-Show; Condit, R.; Heidrich, J.; Pettibone, J. & Streit, R.
Item Type: Refine your search to only Article
open access

(International Panel on 14 MeV Intense Neutron Source Based on Accelerators for Fusion Materials Study)

Description: Both travelers were members of a nine-person US delegation that participated in an international workshop on accelerator-based 14 MeV neutron sources for fusion materials research hosted by the University of Tokyo. Presentations made at the workshop reviewed the technology developed by the FMIT Project, advances in accelerator technology, and proposed concepts for neutron sources. One traveler then participated in the initial meeting of the IEA Working Group on High Energy, High Flux Neutron So… more
Date: February 14, 1991
Creator: Thoms, K.R. & Wiffen, F.W.
Item Type: Refine your search to only Report
open access

An investigation of the effects of history dependent damage in time dependent fracture mechanics, Phase 1, constant load conditions

Description: In the following section a brief review of constitutive models is presented along with the implications of using them in creep crack growth studies under variable loads. The model searched for this study, is discussed along with is special features that make is particularly suitable for this investigation. This model is based on the creep hardening surface and is particularly useful for variable and fully reversed load histories. In Section 3 an implicit finite element algorithm for this model … more
Date: November 14, 1991
Creator: Brust, F.W.; Krishnaswamy, P. & Ghadiali, N.D.
Item Type: Refine your search to only Report
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