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in subjects: "Gloveboxes"

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The safety record at the tritium systems test assembly

This work addresses an important objective of the TSTA-demonstrating that the large tritium inventories required for fusion reactors can be routinely handled, without radiation exposure to operating personnel and without significant environemtnal releases. The techniques by which TSTA has achieved low releases and personnel exposures include high-integrity primary piping systems that exclude contact between tritium and organic materials, a secondary containment system that encloses all primary … more

Date: February 1, 1988

Creator: Coffin, D.O.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Chemistry research and development. Progress report, December 1978-May 1979. [Component, pilot plant, instrumentation]

Progress and activities are reported on component development, pilot plant development, and instrumentation and statistical systems. Specific items studied include processing of pond sludge, transport of radioactive materials and wastes, corrosion, decontamination and cleaning, fluidized-bed incineration, Pu contamination of soils, chemical analysis, radiometric analysis, security. (DLC)

Date: June 30, 1980

Creator: Miner, F. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Tips for the fabrication of temporary tritium experiments

The Tritium System Test Assembly (TSTA) is a facility built for the demonstration of tritium handling systems necessary for tritium-burning fusion reactors. The facility has been in operation handling tritium for four years. The current inventory of tritium is approximately one hundred grams with DOE approval exists for a maximum inventory of two hundred grams. Not all experiments performed at TSTA require the operation of the main process loop. During the last four years, many small scale expe… more

Date: January 1, 1988

Creator: Binning, K.E. & Jenkins, E.M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Los Alamos transuranic waste size reduction facility

To facilitate disposal of transuranic (TRU) waste, Los Alamos National Laboratory designed and constructed the Size Reduction Facility (SRF) during the period 1977 to 1981. This report summarizes the engineering development, installation, and early test operations of the SRF. The facility incorporates a large stainless steel enclosure fitted with remote handling and cutting equipment to obtain an estimated 4:1 volume reduction of gloveboxes and other bulky metallic wastes.

Date: January 1, 1982

Creator: Briesmeister, A.; Harper, J.; Reich, B. & Warren, J.L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design and use of SNM transportation systems at the Los Alamos National Laboratory. [Special Nuclear Materials (SNM)]

The Plutonium Processing Facility at the Los Alamos National Laboratory is located in a building containing approximately 63,000 square feet of laboratory space with an additional 63,000 feet of basement area that is used for heating, ventilation, filtering, storage, and other house'' systems. The building's upper floor is set up in four separate wings with different types of processing occurring both within each wing and between the wings. Because of the diversity of these various processes, m… more

Date: January 1, 1991

Creator: Tellier, L.L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Los Alamos transuranic waste size reduction facility

A transuranic (TRU) Waste Size Reduction Facility (SRF) was designed and constructed at the Los Alamos National Laboratory during the period of 1977 to 1981. This paper summarizes the engineering development, installation, and early test operations of the SRF. The facility incorporates a large stainless steel enclosure fitted with remote handling and cutting equipment to obtain an estimated 4:1 volume reduction of gloveboxes and other bulky metallic wastes.

Date: January 1, 1982

Creator: Briesmeister, A.; Harper, J.; Reich, B. & Warren, J.L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Shielded cells transfer automation

Nuclear waste from shielded cells is removed, packaged, and transferred manually in many nuclear facilities. Radiation exposure is absorbed by operators during these operations and limited only through procedural controls. Technological advances in automation using robotics have allowed a production waste removal operation to be automated to reduce radiation exposure. The robotic system bags waste containers out of glove box and transfers them to a shielded container. Operators control the syst… more

Date: January 1, 1984

Creator: Fisher, J J

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Materials selection of surface coatings in an advanced size reduction facility. [For decommissioned stainless steel equipment]

A materials selection test program was conducted to characterize optimum interior surface coatings for an advanced size reduction facility. The equipment to be processed by this facility consists of stainless steel apparatus (e.g., glove boxes, piping, and tanks) used for the chemical recovery of plutonium. Test results showed that a primary requirement for a satisfactory coating is ease of decontamination. A closely related concern is the resistance of paint films to nitric acid - plutonium en… more

Date: June 2, 1980

Creator: Briggs, J. L. & Younger, A. F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Considerations in the behavior of aerosols in gloveboxes. I. Models. [Pu aerosols]

Increasing requirements for minimizing aerosol release from gloveboxes and minimizing personnel irradiation in the processing and recycling of reactor grade plutonium necessitate a knowledge of the behavior of aerosols in such enclosures. This paper presents the results of a literature survey concerning aerosols in gloveboxes. The results of some theoretical plutonium aerosol models in simulating glovebox conditions are reported.

Date: March 1, 1977

Creator: Mitchell, D.H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Portable gamma-ray holdup and attributes measurements of high- and variable-burnup plutonium

High burnup-plutonium holdup has been assayed quantitatively by low resolution gamma-ray spectrometry. The assay was calibrated with four plutonium standards representing a range of fuel burnup and {sup 241}Am content. Selection of a calibration standard based on its qualitative spectral similarity to gamma-ray spectra of the process material is partially responsible for the success of these holdup measurements. The spectral analysis method is based on the determination of net counts in a singl… more

Date: January 1, 1991

Creator: Wenz, T. R.; Russo, P. A.; Miller, M. C.; Menlove, H. O. (Los Alamos National Lab., NM (United States)); Takahashi, S.; Yamamoto, Y. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Mound's decommissioning experience, tooling, and techniques

Monsanto Research Corporation (MRC), which operates Mound for the Department of Energy (DOE), has been decommissioning radioactively contaminated facilities since 1949. We are currently decommissioning three plutonium-238 contaminated facilities (approximately 50,000 ft/sup 2/) that contained 1100 linear ft of gloveboxes; 900 linear ft of conveyor housing; 2650 linear ft of dual underground liquid waste lines; and associated contaminated piping, services, equipment, structures, and soil. As of … more

Date: January 1, 1982

Creator: Combs, A. B.; Davis, W. P.; Elswick, T. C.; Garner, J. M. & Geichman, J. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Robotic and nuclear safety for an automated/teleoperated glove box system

Lawrence Livermore National Laboratory (LLNL) is developing a fully automated system to handle the processing of special nuclear materials (SNM). This work is performed in response to the new goals at the Department of Energy (DOE) for hazardous waste minimization and radiation dose reduction. This fully automated system, called the automated test bed (ATB), consists of an IBM gantry robot and automated processing equipment sealed within a glove box. While the ATB is a cold system, we are desig… more

Date: September 1, 1991

Creator: Domning, E.E. (Lawrence Livermore National Lab., CA (United States)); McMahon, T.T. & Sievers, R.H. (Science Applications International Corp., Pleasanton, CA (United States))

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Conversion of transuranic waste to low level waste by decontamination: a site specific update

As a followup to an FY-1984 cost/benefit study, a program was conducted in FY-1985 to transfer to the relevant DOE sites the information and technology for the direct conversion of transuranic (TRU) waste to low-level waste (LLW) by decontamination. As part of this work, the economic evaluation of the various TRUW volume reduction and conversion options was updated and expanded to include site-specific factors. The results show, for the assumptions used, that size reduction, size reduction foll… more

Date: September 1, 1985

Creator: Allen, R.P. & Hazelton, R.F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Robot Development for Nuclear Material Processing

The Department of Energy is seeking to modernize its special nuclear material (SNM) production facilities and concurrently reduce radiation exposures and process and incidental radioactive waste generated. As part of this program, Lawrence Livermore National Laboratory (LLNL) lead team is developing and adapting generic and specific applications of commercial robotic technologies to SNM pyrochemical processing and other operations. A working gantry robot within a sealed processing glove box and… more

Date: July 1, 1991

Creator: Pedrotti, L. R.; Armantrout, G. A.; Allen, D. C. & Sievers, R. H., (Sr.)

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Experimental studies of actinides in molten salts

This review stresses techniques used in studies of molten salts containing multigram amounts of actinides exhibiting intense alpha activity but little or no penetrating gamma radiation. The preponderance of studies have used halides because oxygen-containing actinide compounds (other than oxides) are generally unstable at high temperatures. Topics discussed here include special enclosures, materials problems, preparation and purification of actinide elements and compounds, and measurements of v… more

Date: June 1, 1985

Creator: Reavis, J.G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Decommissioning of Division of Military Application equipment at Richland Operations Office for period ending March 31, 1975

The scope of the decommissioning work provides for (1) the removal of all Division of Military Application (DH) fabrication and inspection equipment held in standby status in the 234-5Z Building, (2) disposition of all contaminated equipment and materials removed by packaging for 20-year retrievable storage, (3) reclamation of salvageable materials and equipment for use on site by other Energy Research and Development Administration contractors, and (4) restoration of cleared-out areas for othe… more

Date: April 21, 1975

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Electrofibrous prefilters for use in the nuclear industry

High efficiency particulate air (HEPA) filters are used in the nuclear industry to remove radioactive aerosols. Although these HEPA filters are effective and practical devices, they generate a large volume of radioactive waste and are costly to purchase and operate. In an effort to reduce the HEPA's operational cost and volume of radioactive waste, the Department of Energy (DOE) has contracted with LLNL to develop electrofibrous prefilters to extend the service life of HEPA filters. A comprehen… more

Date: January 1, 1980

Creator: Bergman, W.; Taylor, R. D.; Hebard, H. D.; Lum, B. Y.; Kuhl, W. D.; Boling, R. M. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Ventilating-air change rate versus particulate contaminant spread

This study provides information on the spread of particulate contamination from glovebox leaks in plutonium manufacturing facilities, with emphasis on the effect of ventilating-air change rate on contaminated spread. A new, very sensitive aerosol tracer technique was developed to simulate plutonium aerosol leaks and its dispersion in a room. The tracer, a submicron aerosol of phloroglucinol, does not interfere with work activity and is detected by its ability to form ice crystals in a supercool… more

Date: November 13, 1987

Creator: Langer, G. & Deitesfeld, C. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Electric air filtration: theory, laboratory studies, hardware development, and field evaluations

We summarize the results of a seven-year research project for the US Department of Energy (DOE) to develop electric air filters that extend the service life of high-efficiency particulate air (HEPA) filters used in the nuclear industry. This project was unique to Lawrence Livermore National Laboratory (LLNL), and it entailed comprehensive theory, laboratory studies, and hardware development. We present our work in three major areas: (1) theory of and instrumentation for filter test methods, (2)… more

Date: September 1, 1983

Creator: Bergman, W.; Biermann, A.; Kuhl, W.; Lum, B.; Bogdanoff, A.; Hebard, H. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Application of telerobotic control to remote processing of nuclear material

In processing radioactive material there are certain steps which have customarily required operators working at glove box enclosures. This can subject the operators to low level radiation dosages and the risk of accidental contamination, as well as generate significant radioactive waste to accommodate the human interaction. An automated system is being developed to replace the operator at the glove box and thus remove the human from these risks, and minimize waste. Although most of the processi… more

Date: July 8, 1991

Creator: Merrill, R. D.; Grasz, E. L.; Herget, C. J.; Gavel, D. T.; Addis, R. B. & DeMinico, G. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Considerations for the Installation of an Inductively Coupled Plasma for the Analysis of Radioactive Samples

The sensitivity, dynamic range, and sample through-put rate attributes of the inductively coupled plasma (ICP) call for its consideration as the instrument of choice for the multielement analysis of radioactive samples. Based on our experience in handling radioactive materials, considerations are presented concerning safety of the operator, modularity of the ICP-atomic emission spectrometer systems, reduction of the complex actinide spectra, atomization systems, drain and recovery systems, aero… more

Date: January 1, 1983

Creator: Apel, C. T. & Gallimore, D. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

PROTEC TM TEAR-OFFS: RESULTS OF LONG TERM TESTING

The Savannah River National Laboratory (SRNL) has completed a series of tests (Phases 1 and 2) to assess the potential use of a Mylar{reg_sign} tear-off system as a primary or secondary protective barrier to minimize acid etching ('frosting'), accidental scratching, and/or radiation damage for shielded cells, glovebox, and/or chemical hood windows. Conceptually, thin, multi-layered sheets of Mylar (referred to throughout this report as the ProTec{trademark} tear-off system) can be directly appl… more

Date: July 24, 2008

Creator: Peeler, D

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Glovebox enclosed dc plasma source for the determination of metals in plutonium

The direct current plasma source of a Beckman Spectraspan IIIB emission spectrometer was enclosed in a glovebox at Lawrence Livermore National Laboratory in December 1982. Since that time, the system has been used for the routine determination of alloy and impurity metals in plutonium. This paper presents the systematic steps involved in developing the glovebox and gives information regarding performance of the plasma in the glovebox and the effectiveness of containment of plutonium. 8 refs., 9… more

Date: January 15, 1986

Creator: Morris, W.F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Calibration of moisture monitors

A method for calibrating an aluminum oxide hygrometer against an optical chilled mirror dew-point hygrometer has been established. A theoretical cross-point line of dew points from both hygrometers and a maximum moisture content of 10 ppM/sub v/ are used to define an area for calibrating the sensor probes of the aluminum oxide hygrometer.

Date: February 1, 1979

Creator: Gutierrez, R.L.

Item Type: Report

Partner: UNT Libraries Government Documents Department