49 Matching Results

Search Results


Description: Pair of black cotton lace mitts. The wrist-length fingerless gloves are of hand-crocheted lace, in a wide mesh. Slight frill at wrist, and separate thumb. A narrow black ribbon is threaded through the cuff, one ribbon lacking.
Date: [1850..1867]
Partner: UNT College of Visual Arts + Design


Description: Pair of off-white nylon mitts. The elbow-length fingerless gloves have a loop for the thumb, and are embellished along the finger opening with a trim of openwork daisy heads. Stamped: "Nylasuede / by Hansen / 6 1/2"
Date: 1965~
Creator: Hansen Glove Corporation
Partner: UNT College of Visual Arts + Design

Glovebox characterization and barrier integrity testing using fluorescent powder

Description: This paper presents a method for characterizing the spread of contamination and testing the barrier integrity of a new glovebox during material transfer operations and glove change-outs using fluorescent powder. Argonne National Laboratory-West has performed this test on several new gloveboxes prior to putting them into service. The test is performed after the glovebox has been leak tested and all systems have been verified to be operational. The purpose of the test is to show that bag-in/bag-out operations and glove change-outs can be accomplished without spreading the actual contaminated material to non-contaminated areas. The characterization test also provides information as to where contamination might be expected to build-up during actual operations. The fluorescent powder is used because it is easily detectable using an ultra-violet light and disperses in a similar fashion to radioactive material. The characterization and barrier integrity test of a glovebox using fluorescent powder provides a visual method of determining areas of potential contamination accumulation and helps evaluate the ability to perform clean transfer operations and glove change-outs.
Date: July 1, 1996
Creator: Wahlquist, D.R.
Partner: UNT Libraries Government Documents Department

Technology Development, Evaluation, and Application (TDEA) FY 1995 progress report - Environmental, Safety, and Health (ESH) division

Description: This report covers six months of effort, including startup time. Five projects were supported by the division: Pilot Program for the Risk-Based Surveillance of Lung Cancer in Los Alamos National Laboratory Workers, Optimization of Placement of Workplace Continuous Air Monitoring Instrumentation, A Polymeric Barrier Monitor to Protect Workers, Evaluation of a Real-Time Beryllium Detection Instrument and the Implications of Its Use, and High-Energy Dosimetry. A project summary for each is provided. An appendix to the report includes the 1995 Request for Proposals, Committee Members, Priority Technical Areas of Interest for FY95, Relative Prioritization and Weighting Factors, Format for Proposals, and Charter.
Date: September 1, 1996
Creator: Andrews, L.L.
Partner: UNT Libraries Government Documents Department

A new glove for glovebox workers

Description: Lead-lined gloves used during the processing of nuclear materials within gloveboxes is an example of a barrier. To help prevent work contamination, current practice includes visual inspection and radiological monitoring of each glove on a regular basis. One administrative control requires radiological workers to monitor their hands upon removal form the glovebox gloves. In reality, either a catastrophic glove failure or the formation of pinholes can cause contamination which is detected after the fact. Real-time monitoring of glove integrity during use would help prevent the spread of contamination, minimize decontamination costs, and protect the glovebox worker. Another benefit of real-time monitoring is remotely alerting proper personnel of a glovebox glove breech. One of the most exciting aspects of this technology is the rapid detection of a breech in the glovebox glove. A puncture to a glove can be detected followed by an alert to a worker in less than a second. The benefits of a real-time monitoring system for glove integrity are immense. Examples of benefits using this new glove are: reducing work stoppage, personnel contamination, glovebox glove replacements, and the filing of costly reports. The primary application of this technology at Los Alamos National Laboratory would be protecting the worker with these newly designed lead-lined gloves.
Date: October 1, 1996
Creator: Macdonald, J.M.; Nekimken, H.L.; Hermes, R.E.; Castro, J.M. & Evans, M.E.
Partner: UNT Libraries Government Documents Department


Description: Pair of gloves of white cotton. The plain, daytime gloves are wrist-length. Retailer's label sewn inside: "Made in Western Germany / expressly for / Neiman-Marcus / 100% Cotton"
Date: 1950~
Partner: UNT College of Visual Arts + Design


Description: Pair of gloves of tan suede. The wrist-length gloves are plain, with hand-stitching. Size/Designer Label stamped inside: "7 / Made in France / by / Roger Fare" Retailer Label: "Neiman-Marcus / Made in France"
Date: 1955~
Creator: Fare, Roger
Partner: UNT College of Visual Arts + Design


Description: A collimated portable gamma-ray detector will be used to quantify the plutonium content of items that can be approximated as a point, line, or area geometry with respect to the detector. These items can include ducts, piping, glove boxes, isolated equipment inside of gloveboxes, and HEPA filters. The Generalized Geometry Holdup (GGH) model is used for the reduction of counting data. This document specifies the calculations to reduce counting data into contained plutonium and the associated total measurement uncertainty.
Date: February 1, 2005
Creator: BD, KEELE
Partner: UNT Libraries Government Documents Department

Rh(I)-Catalyzed Arylation of Heterocycles via C-H Bond Activation: Expanded Scope Through Mechanistic Insight

Description: A practical, functional group tolerant method for the Rh-catalyzed direct arylation of a variety of pharmaceutically important azoles with aryl bromides is described. Many of the successful azole and aryl bromide coupling partners are not compatible with methods for the direct arylation of heterocycles using Pd(0) or Cu(I) catalysts. The readily prepared, low molecular weight ligand, Z-1-tert-butyl-2,3,6,7-tetrahydrophosphepine, which coordinates to Rh in a bidentate P-olefin fashion to provide a highly active yet thermally stable arylation catalyst, is essential to the success of this method. By using the tetrafluoroborate salt of the corresponding phosphonium, the reactions can be assembled outside of a glove box without purification of reagents or solvent. The reactions are also conducted in THF or dioxane, which greatly simplifies product isolation relative to most other methods for direct arylation of azoles employing high-boiling amide solvents. The reactions are performed with heating in a microwave reactor to obtain excellent product yields in two hours.
Date: July 18, 2007
Creator: Lewis, Jared; Berman, Ashley; Bergman, Robert & Ellman, Jonathan
Partner: UNT Libraries Government Documents Department


Description: A critical component of tritium glovebox operations is the recovery of high value tritium from the water vapor in the glove box atmosphere. One proposed method to improve existing tritium recovery systems is to replace the disposable hot magnesium beds used to separate the hydrogen and oxygen in water with continuous use Proton Exchange Membrane Electrolyzers (PEMEs). This study examines radiation exposure to the membrane of a PEME and examines the sizing difference that would be needed if the electrolyzer were operated with a cathode water vapor feed instead of an anode liquid water feed.
Date: August 27, 2007
Creator: Fox, E; Scott Greenway, S & Amy Ekechukwu, A
Partner: UNT Libraries Government Documents Department

High Efficiency Particulate Air (HEPA) Filter Generation, Characterization, and Disposal Experiences at the Oak Ridge National Laboratory

Description: High Efficiency Particulate Air filtration is an essential component of the containment and ventilation systems supporting the research and development activities at the Oak Ridge National Laboratory. High Efficiency Particulate Air filters range in size from 7.6cm (3 inch) by 10.2 cm (4 inch) cylindrical shape filters to filter array assemblies up to 2.1 m (7 feet) high by 1.5 m (5 feet) wide. Spent filters are grouped by contaminates trapped in the filter media and become one of the components in the respective waste stream. Waste minimization and pollution prevention efforts are applied for both radiological and non-radiological applications. Radiological applications include laboratory hoods, glove boxes, and hot cells. High Efficiency Particulate Air filters also are generated from intake or pre-filtering applications, decontamination activities, and asbestos abatement applications. The disposal avenues include sanitary/industrial waste, Resource Conservation and Recovery Act and Toxic Substance Control Act, regulated waste, solid low-level waste, contact handled transuranic, and remote handled transuranic waste. This paper discusses characterization and operational experiences associated with the disposal of the spent filters across multiple applications.
Date: February 28, 2002
Creator: Coffey, D. E.
Partner: UNT Libraries Government Documents Department

Coated Particle Fuel and Deep Burn Program Monthly Highlights April 2011

Description: The baseline change proposal BCP-FCRD-11026 submitted to change the due date for M21AF080202 'Demonstrate fabrication of Transuranic kernels of Plutonium-239/3.5at%Neptunium-237 using newly installed glove box facilities in ORNL 7930 hot cell complex' from 4/25/11 to 3/30/12 was approved this month. During FY 2011 the CP & DB Program will report Highlights on a monthly basis, but will no longer produce Quarterly Progress Reports. Technical details that were previously included in the quarterly reports will be included in the appropriate Milestone Reports that are submitted to FCRD Program Management. These reports will also be uploaded to the Deep Burn website. The Monthly Highlights report for March 2011, ORNL/TM-2011/96, was distributed to program participants on April 8, 2011. As reported previously, the final Quarterly for FY 2010, Deep Burn Program Quarterly Report for July - September 2010, ORNL/TM-2010/301, was announced to program participants and posted to the website on December 28, 2010. This report discusses the following: (1) Thermochemical Data and Model Development - (a) Thermochemical Modeling, (b) Thermomechanical Behavior, (c) Actinide and Fission Product Transport, (d) Radiation Damage and Properties; (2) TRU (transuranic elements) TRISO (tri-structural isotropic) Development - (a) TRU Kernel Development, (b) Coating Development; (3) Advanced TRISO Applications - Metal Matrix Fuels for LWR; (4) LWR Fully Ceramic Fuel - (a) FCM Fabrication Development, (b) FCM Irradiation Testing; (5) Fuel Performance and Analytical Analysis - Fuel Performance Modeling; and (6) ZrC Properties and Handbook - Properties of ZrC.
Date: May 1, 2011
Creator: Snead, Lance Lewis; Bell, Gary L & Besmann, Theodore M
Partner: UNT Libraries Government Documents Department


Description: The Plutonium Finishing Plant (PFP) consists of a number of process and support buildings for handling plutonium. Building construction began in the late 1940's to meet national priorities and became operational in 1950 producing refined plutonium salts and metal for the United States nuclear weapons program. The primary mission of the PFP was to provide plutonium used as special nuclear material for fabrication into a nuclear device for the war effort. Subsequent to the end of World War II, the PFP's mission expanded to support the Cold War effort through plutonium production during the nuclear arms race. PFP has now completed its mission and is fully engaged in deactivation, decontamination and decommissioning (D&D). At this time the PFP buildings are planned to be reduced to ground level (slab-on-grade) and the site remediated to satisfy national, Department of Energy (DOE) and Washington state requirements. The D&D of a highly contaminated plutonium processing facility presents a plethora of challenges. PFP personnel approached the D&D mission with a can-do attitude. They went into D&D knowing they were facing a lot of challenges and unknowns. There were concerns about the configuration control associated with drawings of these old process facilities. There were unknowns regarding the location of electrical lines and process piping containing chemical residues such as strong acids and caustics. The gloveboxes were highly contaminated with plutonium and chemical residues. Most of the glovebox windows were opaque with splashed process chemicals that coated the windows or etched them, reducing visibility to near zero. Visibility into the glovebox was a serious worker concern. Additionally, all the gloves in the gloveboxes were degraded and unusable. Replacing gloves in gloveboxes was necessary to even begin glovebox cleanout. The sheer volume of breathing air needed was also an issue. These and other challenges and PFP's approach to ...
Date: February 1, 2006
Partner: UNT Libraries Government Documents Department

Sensitivity tests on leaded glove material, EMRTC Report FR-95-15: Final test report

Description: Small-scale safety and characterization tests were performed on stored radioactive wastes. The materials tested were formed when leaded dry box gloves were exposed to nitric acid. The nitration products exhibited thermal and impact sensitivity which could lead to ignition of explosion. Water was used to separate the nitrated glove material into several fractions; only the insoluble fraction exhibited significant sensitivity to impact. Both the separated and mixed materials were thermally unstable. Self-heating occurred at about 80C or lower, depending on the quantity of material tested. The drop weight impact sensitivity of one sample was greater than that of trinitrotoluene. The electrostatic spark discharge sensitivity of the nitration products was measured to be less than for typical secondary explosives. No sensitivity to friction was measured. These results indicate that the nitrated gloves can probably be handled without extreme risk of ignition. Washing the nitrated materials was found to desensitize the materials, indicating that water could be used as a solvent when storing the materials.
Date: June 1, 1995
Creator: Olson, D.; Davis, L. & Block-Bolten, A.
Partner: UNT Libraries Government Documents Department

Remote mechanical operating methods vs rubber glove operating methods for the 234-5 process

Description: The present RMA Line has now progressed through the run-in period and is engaged in actual production. Considerable new data and experiences are available for use in an evaluation of the basis used for design of the equipment in regard to contamination control and the safety of operating and maintenance personnel. Research and development funds have been allocated to the improvement of the 234-5 process equipment. Thus it is desirable that an up-to-date basis be established for use as criteria for the design development of these improvements. It is concluded that remote control operation of all plutonium purification and fabrication equipment is ultimately desirable. However, until reliable, tested, remote-control equipment is available, the remote control requirement may have to be compromised on some steps of the process to allow non-remote or rubber glove operation in order to obtain equipment with sufficient operating reliability.
Date: September 23, 1952
Creator: Ingalls, W.P.
Partner: UNT Libraries Government Documents Department

Demonstration of the Tank Farm Washing Process and the DWPF SRAT Cycle with Sludge Batch 3 Simulant and Precipitated Pu/Gd Mixture from H-Canyon Tank 18.3

Description: The Nuclear Materials Management Division (NMMD) has proposed that certain Pu solutions stored in H-Canyon be disposed to H-Tank Farm. These solutions contain significant inventories of plutonium. The Pu/Gd mixture (along with the sludge slurry from Tank 7 and Am/Cm solution) will be processed as a part of Sludge Batch 3. Sludge Batch 3 is the next sludge batch of feed for the Defense Waste Processing Facility (DWPF). In order to prepare the feed for DWPF, the sludge slurry will be washed to approximately 0.55 M Na in the supernate. This report addresses the glove box work with a Sludge Batch 3 simulant and a Pu/Gd mixture precipitated from H-Canyon Tank 18.3. The main objective of this experimental work was to determine the behavior of the Pu and Gd during the Tank Farm washing process and the SRAT process.
Date: September 23, 2002
Creator: Fellinger, T.L.
Partner: UNT Libraries Government Documents Department

Isotopic hydrogen analysis via conventional and surface-enhanced fiber optic Raman spectroscopy

Description: This report describes laboratory development and process plant applications of Raman spectroscopy for detection of hydrogen isotopes in the Tritium Facilities at the Savannah River Site (SRS), a U.S. Department of Energy complex. Raman spectroscopy provides a lower-cost, in situ alternative to mass spectrometry techniques currently employed at SRS. Using conventional Raman and fiber optics, we have measured, in the production facility glove boxes, process mixtures of protium and deuterium at various compositions and total pressures ranging from 1000-4000 torr, with detection limits ranging from 1-2 percent for as low as 3-second integration times. We are currently investigating fabrication techniques for SERS surfaces in order to measure trace (0.01-0.1 percent) amounts of one isotope in the presence of the other. These efforts have concentrated on surfaces containing palladium, which promotes hydrogen dissociation and forms metal hydride bonds, essentially providing a chemical enhancement mechanism.
Date: September 23, 2004
Creator: Lascola, Robert
Partner: UNT Libraries Government Documents Department

Automated corrosion system in a moist environment

Description: In an effort to assist researchers investigating the moisture-generated corrosion of metals and ceramics, a unique exposure system was developed. The initial goal of this system was to monitor corrosion ranging from a few monolayers at the outset of the corrosion process to high mass gains in more extensively corroded material. The new system uses a small robot arm for sample manipulation; gravimetric and Fourier transform infrared (FTIR) spectroscopy for corrosion-product determination; and a gas blending system to control the moisture content of the glove box in which the system is housed. The system's computer control can be configured to coordinate the examination of as many as 20 samples by periodic weighing and FTIR scanning. The computer also performs such functions as data logging of the temperature and pressure of the system and of the flow rate and moisture content of the purge gas. One main benefit of the computer-controlled robotic system is its ability to monitor samples 2 4 hours a day with precision control; this reduces problems stemming from human error or inconsistency of human technique.
Date: March 19, 1999
Creator: Hallman, R.L. Jr. & Calhoun, C.L.
Partner: UNT Libraries Government Documents Department

Explosive Potential Analysis of AB Process-Final Report

Description: A need arose to define the hazards associated with the operation of a process. The process involved the evolution of a hydrogen gas stream from thermal decomposition of uranium hydride at approximately 400 C into the interior of a purged argon-filled glove box. Specific hazards of interest included the potential reaction severity of the evolved hydrogen with atmospheric oxygen, either downstream in the vent system or inside the box in the event of serious air inleakage. Another hazard might be the energetic reaction of inleaked air with the hot uranium and uranium hydride powder bed, possibly resulting in the dispersion of powders into an air atmosphere and the rapid combustion of the powders. This was approached as a problem in calculational simulation. Given the parameters associated with the process and the properties of the glove box system, certain scenarios were defined and the potential for flammable or detonation reactions estimated. Calculation tools included a comprehensive fluid dynamics code, a spreadsheet, a curve-fitting program, an equation solver, and a thermochemistry software package. Results are reported which suggest that the process can be operated without significant hazard to operators or significant damage to equipment, assuming that operators take account of potential upset scenarios.
Date: October 12, 2001
Creator: Bullock, J.S.; Giles, G.E. jr.; Wendel, M.W. & Sulfredge, C.D.
Partner: UNT Libraries Government Documents Department

Determination of ring correction factors for leaded gloves used in grab sampling activities at Hanford tank farms

Description: This study evaluates the effectiveness of lead lined gloves in reducing extremity dose from two sources specific to tank waste sampling activities: (1) sludge inside glass sample jars and (2) sludge as thin layer contamination on the exterior surface of sample jars. The response of past and present Hanford Extremity Dosimeters (ring) designs under these conditions is also evaluated.
Date: June 24, 1999
Creator: RATHBONE, B.A.
Partner: UNT Libraries Government Documents Department

Improvement of the IRIS Process for Incineration of Various Radioactive Waste Compositions

Description: Incineration represents a promising weight and volume reduction technique for alpha-contaminated organic waste. Following several years of laboratory research initiated in 1983 on a nonradioactive prototype unit at the CEA's Rhone Valley (Marcoule) Research Center, an innovative process, IRIS, has been developed to meet the need for processing nuclear glove box waste containing large amounts of chlorine. In March 1999, the first highly chlorinated alpha-contaminated waste was incinerated in the industrial facility based on the IRIS process at the CEA's Valduc Center. The nonradioactive prototype at Marcoule and the radioactive facility at Valduc demonstrated that the process is highly effective with a continuously fed rotating tubular kiln and with a very effective control of corrosion by pyrolytic decomposition of the waste initially at 550 C. The ash quality meets specification requirements (< 1% carbon, < 1% chlorine) and the volume and weight reduction factors are sufficient (around 30). The offgas treatment system exhibits very high operating efficiency complying with gaseous emission standards.
Date: February 26, 2003
Creator: Lemort, F. & Charvillat, J. P.
Partner: UNT Libraries Government Documents Department


Description: This paper describes the results of a joint technological program of COGEMA and MAPA to develop a new generation of glove for glove boxes. The mechanical strength of this glove is twice as high as the best characteristics of gloves available on the market. This new generation of product has both a higher level of performance and better ergonomics.
Date: February 27, 2003
Creator: Blancher, J. & Poirier, J.M.
Partner: UNT Libraries Government Documents Department