Summary of Mercury Compatibility Issues for the Spallation Neutron Source Target Containment and Ancillary Equipment (open access)

Summary of Mercury Compatibility Issues for the Spallation Neutron Source Target Containment and Ancillary Equipment

The purpose of this document is to summarize the primary results of the Hg compatibility research in support of the SNS target. In the absence of possible synergisms resulting from beam/irradiation effects, wetting of 316L/316LN stainless steel under SNS conditions by the Hg target is expected to be very limited. As a result, significant interactions such as dissolution, mass transfer, and embrittlement affecting general compatibility are not anticipated. A wide range of experiments on 316L/316LN stainless steel, including thermal convection and pumped loops, confirmed low corrosion/penetration rates in Hg up to 305 C and little or no wetting or mass transfer below about 250 C. A variety of standard mechanical tests comparing behavior of 316L in air and Hg revealed limited wetting and no degradation of mechanical properties such as reduced elongation or development of brittle fracture features. Preliminary fatigue tests indicated a negative effect (reduced cycles to failure and intergranular cracking) at very high loads for 316LN, but little or no effect at more modest loading. Annealed 316LN was found to be somewhat susceptible to cavitation-erosion damage, but significant improvement was realized with a kolsterizing surface treatment or coldworking the material. Within the scope of these test conditions, no …
Date: April 8, 2003
Creator: Pawel, SJ
Object Type: Report
System: The UNT Digital Library
HAZARD ANALYSIS SOFTWARE (open access)

HAZARD ANALYSIS SOFTWARE

Washington Safety Management Solutions, LLC developed web-based software to improve the efficiency and consistency of hazard identification and analysis, control selection and classification, and to standardize analysis reporting at Savannah River Site. In the new nuclear age, information technology provides methods to improve the efficiency of the documented safety analysis development process which includes hazard analysis activities. This software provides a web interface that interacts with a relational database to support analysis, record data, and to ensure reporting consistency. A team of subject matter experts participated in a series of meetings to review the associated processes and procedures for requirements and standard practices. Through these meetings, a set of software requirements were developed and compiled into a requirements traceability matrix from which software could be developed. The software was tested to ensure compliance with the requirements. Training was provided to the hazard analysis leads. Hazard analysis teams using the software have verified its operability. The software has been classified as NQA-1, Level D, as it supports the analysis team but does not perform the analysis. The software can be transported to other sites with alternate risk schemes. The software is being used to support the development of 14 hazard analyses. …
Date: April 8, 2008
Creator: Sommer, S & Tinh Tran, T
Object Type: Article
System: The UNT Digital Library
Exponential Growth, Superradiance, and Tunability of a Seeded Free Electron Laser (open access)

Exponential Growth, Superradiance, and Tunability of a Seeded Free Electron Laser

None
Date: April 8, 2008
Creator: Wu, Juhao; /SLAC; Murphy, James B.; Wang, Xijie; /Brookhaven; Wang, Kelin et al.
Object Type: Article
System: The UNT Digital Library
Stringy Instantons in IIB Brane Systems (open access)

Stringy Instantons in IIB Brane Systems

None
Date: April 8, 2008
Creator: Kachru, Shamit; Simic, Dusan & /Stanford U., Phys. Dept. /SLAC
Object Type: Article
System: The UNT Digital Library
SAFETY ANALYSIS OF THE DEMONSTRATION BULK VITRIFICATION SYSTEM (open access)

SAFETY ANALYSIS OF THE DEMONSTRATION BULK VITRIFICATION SYSTEM

None
Date: April 8, 2008
Creator: JP, HARRIS
Object Type: Article
System: The UNT Digital Library
The Early Optical Brightening in the GRB 071010B (open access)

The Early Optical Brightening in the GRB 071010B

We report the detection of early (60-230 s) optical emission of the gamma-ray burst afterglow of GRB071010B. No significant correlation with the prompt {gamma}-ray emission was found. Our high time-resolution data combining with other measurements within 2 days after the burst indicate that GRB071010B is composed of a weak early brightening ({alpha} {approx} 0.6), probably caused by the peak frequency passing through the optical wavelengths, followed by a decay ({alpha} {approx} -0.51), attributed to continuous energy injection by patchy jets.
Date: April 8, 2008
Creator: Wang, J. H.; Schwamb, M. E.; Huang, K. Y.; Wen, C. Y.; Zhang, Z. W.; Wang, S. Y. et al.
Object Type: Article
System: The UNT Digital Library
Automated solar panel assembly line. LSA task: production processes and equipment. Quarterly report No. 1 (open access)

Automated solar panel assembly line. LSA task: production processes and equipment. Quarterly report No. 1

The objective of this program is to design, fabricate and demonstrate an automated solar cell module production line with the ultimate goal of reducing module assembly costs. During this reporting period the automated module design was completed. The design of the solar cell assembly prototype (SCAP) was about 75% completed and the solar panel lamination prototype (SPLP) was built and tested.
Date: April 8, 1979
Creator: Somberg, H.
Object Type: Report
System: The UNT Digital Library
Aquaculture Report:1976 (open access)

Aquaculture Report:1976

Growth of channel catfish (Ictalurus punctatus) and Tilapia zillii in the Reft River Geothermal Area (RRGT) geothermal waters can equal or surpass that in a commercial aquaculture facility. Fish and prawn mortality over the course of the intermediate term preliminary study did not appear to be related to any inherent geothermal water chemistry conditions. Temperature control was a problem but does not appear to be beyond design control. The absence of temperature-related mortality in channel catfish, Tilapia zilli, and yellow perch (Perca flavescens) indicates increased survival and suggests reduced expenditures for disease control. It may also allow higher fish densities in commercial aquaculture operations using geothermal water. Results of this study indicate potential for commercial aquaculture development at the Raft River Geothermal Testing Site.
Date: April 8, 1977
Creator: Campbell, Donald K.; Watson, Lynn; Kent, James C. & Johnson, Donald W.
Object Type: Report
System: The UNT Digital Library
Two-dimensional gas flow in an electrode assembly (open access)

Two-dimensional gas flow in an electrode assembly

The interface between a source of positive or negative ions and a multichannel MEQALAC accelerator will be the Low-Energy Beam Transport (LEBT) consisting of a lattice of quadrupole focusing electrodes transporting the beam while the gas pressure is reduced from the high-pressure ion source to the low-pressure accelerator. Gas emitted from the ion source will flow through the LEBT electrode lattice to a pumping volume. It is necessary to analyze the two-dimensional gas flow to ascertain the gas densities throughout the LEBT and to design the system so that only a small fraction of the ion beam is lost by gas collisions. The analysis uses the fact that the gas-flow rate is proportional to the density gradient if the mean free path of the low-pressure gas is greater than the inter-electrode spacing. Consequently the mathematics developed for conductivity of heat or electric current can be used. The practical result of this analysis is to determine the maximum width of the LEBT so that the beam loss by gas collisions is tolerable. The maximum width is a function of beam density, gas efficiency, and electrode spacing. The beam current per unit length of module will be somewhat greater than 75 mA/cm. …
Date: April 8, 1980
Creator: Hamilton, G.W. & Willmann, P.A.
Object Type: Report
System: The UNT Digital Library
Qualitative comparisons of fusion reactor materials for waste handling and disposal (open access)

Qualitative comparisons of fusion reactor materials for waste handling and disposal

The activation of five structural materials and seven coolant/breeder/multiplier materials in a common reference neutron environment was calculated with the FORIG activation code. The reference environment was the neutron flux and spectrum at the first wall of the mirror advanced reactor study (MARS) reactor. Qualitative comparison of these activated materials were made with respect to worker protection requirements for gamma radiation in handling the materials and with respect to their classifications for near-surface disposal of radioactive waste.
Date: April 8, 1985
Creator: Maninger, R.C.
Object Type: Article
System: The UNT Digital Library
Development of Alcohol-Based Synthetic Transportation Fuels From Coal-Derived Synthesis Gases. First Quarterly Progress Report, September 14-December 31, 1979 (open access)

Development of Alcohol-Based Synthetic Transportation Fuels From Coal-Derived Synthesis Gases. First Quarterly Progress Report, September 14-December 31, 1979

Chem Systems is carrying out an experimental program for the conversion of coal-derived synthesis gases to a mixture of C/sub 1/-C/sub 4/ alcohols. The objectives of this contract are to: (1) develop a catalyst and reactor system for producing a mixture of C/sub 1/-C/sub 4/ alcohols, which we call Alkanol fuel, to be used as a synthetic transportation fuel and (2) assess the technical and economic feasibility of scaling the process concept to a commercial-scale application. Some of the accomplishments made this quarter were: (1) a small (75cc) fixed-bed, plug-flow, vapor phase reaction system was set up and operated utilizing catalyst bed dilution with inert media to help limit the large exotherm associated with the synthesis gas conversion reactions; (2) a total of fifteen (15) catalysts containing varying amounts of Cu, Co, Zn, Cr and K were prepared and seven of these catalysts were tested; (3) we have identified at least one promising catalyst composition which has resulted in a 30% conversion of carbon monoxide per pass (synthesis gas had a 3.5 H/sub 2//CO ratio) with a carbon selectivity to alcohols of about 80%.
Date: April 8, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Competing electron-electron/electron-phonon interactions and polyacetylene (open access)

Competing electron-electron/electron-phonon interactions and polyacetylene

Using Lanczos exact diagonalization, we investigate the effects of the competition between the electro-electron and electron-phonon interactions in the context of the 1-D tight-binding Peierls-Hubbard Hamiltonian, studying various structural, optical, and vibrational properties of strongly correlated systems. We use polyacetylene as our experimental guide, and perform a parameter space search to determine the level at which a unique set of parameters can model this prototypical conducting polymer and, more generally, the applicability of the simple'' 1-D Peierls-Hubbard Hamiltonian to these highly interesting materials. 9 refs., 3 tabs.
Date: April 8, 1991
Creator: Gammel, J.T. (Los Alamos National Lab., NM (USA) Bayreuth Univ. (Germany, F.R.). Physics Inst.); Campbell, D.K. (Los Alamos National Lab., NM (USA)) & Loh, E.Y. Jr. (Thinking Machines Corp., Cambridge, MA (USA))
Object Type: Article
System: The UNT Digital Library
Flowsheet report for baseline actinide blanket processing for accelerator transmutation of waste (open access)

Flowsheet report for baseline actinide blanket processing for accelerator transmutation of waste

We provide a flowsheet analysis of the chemical processing of actinide and fission product materials form the actinide blanket of an accelerator-based transmutation concept. An initial liquid ion exchange step is employed to recover unburned plutonium and neptunium, so that it can be returned quickly to the transmitter. The remaining materials, consisting of fission products and trivalent actinides (americium, curium), is processed after a cooling period. A reverse Talspeak process is employed to separate these trivalent actinides from lanthanides and other fission products.
Date: April 8, 1992
Creator: Walker, R.B.
Object Type: Report
System: The UNT Digital Library
[Assessment of effects of surfactants in a heavy oil reservoir] (open access)

[Assessment of effects of surfactants in a heavy oil reservoir]

During the past three months we have carefully negotiated a joint venture to implement a pilot for testing the two enhanced oil recovery processes developed at CLD Technology, Inc. The technical staff at CLD Technology, Inc. has decided to model the heavy oil reserve on the Cantleberry Lease, the Jasmin oil field in Kern County, California. Staff members have designed a new sand pack to represent one-eighth (1/8) of a one, ten-acre, five-spot well pattern that will represent the sands of the Cantleberry lease. All calculated parameters are listed in Table 1. The 3-dimensional scaled physical model design represents a typical Cantleberry steamflood pattern. The design of the model will allow the creation of zones identical to those in the Cantleberry lease which will represent the shale break between the Cantleberry A'' and B'' sands. The last 3-dimensional scaled physical model experiment, needed to design the pilot, is ready to go awaiting continuous funding from the DOE.
Date: April 8, 1991
Creator: Kostura, J.A.
Object Type: Report
System: The UNT Digital Library
Past Government Shutdowns: Key Resources (open access)

Past Government Shutdowns: Key Resources

This report provides an annotated list of historical documents and other resources related to several past government shutdowns. The report also includes links to full-text documents when available. There is limited information and guidance related to shutdowns, and it is difficult to predict what might happen in the event of one, but information about past events may help inform future deliberations.
Date: April 8, 2011
Creator: Nagel, Jared Conrad & Murray, Justin
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 36, Number 14, Pages 2197-2294, April 8, 2011 (open access)

Texas Register, Volume 36, Number 14, Pages 2197-2294, April 8, 2011

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 8, 2011
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 19, Number 26, Pages 2439-2575, April 8, 1994 (open access)

Texas Register, Volume 19, Number 26, Pages 2439-2575, April 8, 1994

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 8, 1994
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: V-1041 (open access)

Texas Attorney General Opinion: V-1041

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: The applicability to Gregg County of Article 2116c, V.C.S., relative to selection of juries, under the submitted facts.
Date: April 8, 1950
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-1042 (open access)

Texas Attorney General Opinion: V-1042

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: The correct annual license fee from agents of county mutual fire insurance companies.
Date: April 8, 1950
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 5, Number 27, Pages 1363-1394, April 8, 1980 (open access)

Texas Register, Volume 5, Number 27, Pages 1363-1394, April 8, 1980

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 8, 1980
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 8, Number 25, Pages 1149-1192, April 8, 1983 (open access)

Texas Register, Volume 8, Number 25, Pages 1149-1192, April 8, 1983

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 8, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 11, Number 27, Pages 1675-1694, April 8, 1986 (open access)

Texas Register, Volume 11, Number 27, Pages 1675-1694, April 8, 1986

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 8, 1986
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
N-Reactor Department monthly report, March 1963 (open access)

N-Reactor Department monthly report, March 1963

This document details activities of the N-Reactor Department during the month of March 1963.
Date: April 8, 1963
Creator: unknown
Object Type: Report
System: The UNT Digital Library
[Assessment of effects of surfactants in a heavy oil reservoir]. Third quarterly report, March 30, 1991 (open access)

[Assessment of effects of surfactants in a heavy oil reservoir]. Third quarterly report, March 30, 1991

During the past three months we have carefully negotiated a joint venture to implement a pilot for testing the two enhanced oil recovery processes developed at CLD Technology, Inc. The technical staff at CLD Technology, Inc. has decided to model the heavy oil reserve on the Cantleberry Lease, the Jasmin oil field in Kern County, California. Staff members have designed a new sand pack to represent one-eighth (1/8) of a one, ten-acre, five-spot well pattern that will represent the sands of the Cantleberry lease. All calculated parameters are listed in Table 1. The 3-dimensional scaled physical model design represents a typical Cantleberry steamflood pattern. The design of the model will allow the creation of zones identical to those in the Cantleberry lease which will represent the shale break between the Cantleberry ``A`` and ``B`` sands. The last 3-dimensional scaled physical model experiment, needed to design the pilot, is ready to go awaiting continuous funding from the DOE.
Date: April 8, 1991
Creator: Kostura, J. A.
Object Type: Report
System: The UNT Digital Library