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Tritium : [bibliography]

Description: The following memorandum is a selective bibliography of books, periodical articles, and technical reports relating to tritium with special reference to urine analysis of tritium and metabolic experiments.
Date: March 12, 1957
Creator: Cason, Maggie
Partner: UNT Libraries Government Documents Department

Evaluated Neutron Cross Sections for Tritium

Description: From foreword: Evaluation of the experimental data on the light isotopes, hydrogen through beryllium, was initiated by LASL in mid-1963. Since the data compilations available were completely inadequate for the task at hand, the tedious program of compiling and plotting was undertaken. As the work progressed an attempt was made to eliminate many of the obvious errors and inconsistencies found in the literature and existing compilations.
Date: February 1965
Creator: Stewart, Leona
Partner: UNT Libraries Government Documents Department

Cross-Section at 15.6 and 16.1 MeV

Description: The intent of this investigation is the determination of the values of the Cs-133 (n,2n)Cs-132 cross-section at neutron energies of 15.6 and 16.1 MeV. Neutrons of this energy are produced with comparative ease by means of the D-T reaction, in which deuterons of energy 500 and 750 keV, respectively, are impingent upon a tritium target.
Date: May 1969
Creator: Pepper, George H.
Partner: UNT Libraries

Development of Auxiliary Cyclotron Equipment for Using Tritium as Bombarding Particles in a Cyclotron

Description: "A circulating system for radioactive tritium was constructed, assembled, and tested. The results showed that the pumping speed of the system was too low for use. Therefore, bombardments in the cyclotron with tritium particles would not be made during the course of this project" (p. 1).
Date: December 1951
Creator: Kundu, D. N.; Boyle, F. G. & Pool, M. L.
Partner: UNT Libraries Government Documents Department

Tritium activities in the United States

Description: There have been many significant changes in the status of tritium activities in the US since the 4th Tritium Conference in October, 1991. The replacement Tritium Facility (RTF) at Savannah River Site and the Weapons Engineering Tritium Facility (WETF) at the Los Alamos National Laboratory are now operational with tritium. The Tokamak Fusion Test Reactor (TFTR) has initiated a highly successful experimental campaign studying DT plasmas, and has produced more than 10 Megawatts (MW) of fusion power in a D-T plasma. Sandia National Laboratory has ceased tritium operations at the Tritium Research Laboratory (TRL) and many of the activities previously performed there have been transferred to Los Alamos and Savannah River. The tritium laboratory at Lawrence Livermore National Laboratory has reduced the tritium inventory to <5 grams. The Tritium Systems Test Assembly (TSTA) at Los Alamos continues to be at the forefront of tritium technology and safety development for the fusion energy program.
Date: July 1, 1995
Creator: Anderson, J.L. & LaMarche, P.
Partner: UNT Libraries Government Documents Department

Mathematical comparison of three tritium system effluent HTO cleanup systems

Description: It is important that air emissions from tritium systems be kept as low as reasonably achievable. Thus, over the years a number of gas detritiation systems have been developed. Recently there has been interest in lower-cost, simpler systems which do not convert HT to the much more hazardous HTO form. Examples of such systems are (1) a bubbler/dehumidifier, (2) a bubbler/collector, and (3) an adsorber/collector. A computer model of each configuration was written and run. Each system's performance, including tritium buildup in liquid water, and tritium exhausted to the environment, are presented and compared.
Date: March 22, 2002
Creator: Willms, R.Scott; Gentile, Charles; Rule, Keith; Than, Chit & Williams, Philip
Partner: UNT Libraries Government Documents Department

Effectiveness Monitoring Report, MWMF Tritium Phytoremediation Interim Measures.

Description: This report describes and presents the results of monitoring activities during irrigation operations for the calendar year 2001 of the MWMF Interim Measures Tritium Phytoremediation Project. The purpose of this effectiveness monitoring report is to provide the information on instrument performance, analysis of CY2001 measurements, and critical relationships needed to manage irrigation operations, estimate efficiency and validate the water and tritium balance model.
Date: February 10, 2003
Creator: Hitchcock, Dan & Blake, John, I.
Partner: UNT Libraries Government Documents Department

Results of Tritium Tracking and Groundwater Monitoring at the Hanford Site 200 ARea State-Approved Land Disposal Site--Fiscal Year 2002

Description: Tritium activities decreased in all three SALDS proximal wells during FY 2002, compared with FY 2001. Activities in well 699-48-77A first decreased to less than 3,000 pCi/L in January 2002, but rose to 150,000 in July, probably as a result of tritium discharges to SALDS that resumed in February 2002. Well 699-48-77C, where tritium analysis produced a maximum value of 750,000 pCi/L in January 2002, reflects the result of the delayed penetration of effluent deeper into the aquifer from tritium discharges. SALDS proximal well 699-48-77D produced a maximum result of 240,000 pCi/L in July 2002. Timing between detections of tritium and other constituents in well 699-48-77C suggest a delay of approximately three years from detection in wells 699-48-77A and 699-48-77D. Historically maxima for tritium (790 and 860 pCi/L in successive sample periods) suggest that tritium from SALDS may be reaching the northern edge of the 200 West Area, south of the facility.
Date: September 19, 2002
Creator: Barnett, D. Brent & Rieger, JoAnne T.
Partner: UNT Libraries Government Documents Department

Mobility of Tritium in Engineered and Earth Materials at the NuMIFacility, Fermilab: Progress report for work performed between June 13and September 30, 2006

Description: This report details the work done between June 13 andSeptember 30, 2006 by Lawrence Berkeley National Laboratory (LBNL)scientists to assist Fermi National Accelerator Laboratory (Fermilab)staff in understanding tritium transport at the Neutrino at the MainInjector (NuMI) facility. As a byproduct of beamline operation, thefacility produces (among other components) tritium in engineeredmaterials and the surrounding rock formation. Once the tritium isgenerated, it may be contained at the source location, migrate to otherregions within the facility, or be released to theenvironment.
Date: October 25, 2006
Creator: Pruess, Karsten; Conrad, Mark; Finsterle, Stefan; Kennedy, Mack; Kneafsey, Timothy; Salve, Rohit et al.
Partner: UNT Libraries Government Documents Department

Operating Experience Review of Tritium-in-Water Monitors

Description: Monitoring tritium facility and fusion experiment effluent streams is an environmental safety requirement. This paper presents data on the operating experience of a solid scintillant monitor for tritium in effluent water. Operating experiences were used to calculate an average monitor failure rate of 4E-05/hour for failure to function. Maintenance experiences were examined to find the active repair time for this type of monitor, which varied from 22 minutes for filter replacement to 11 days of downtime while waiting for spare parts to arrive on site. These data support planning for monitor use; the number of monitors needed, allocating technician time for maintenance, inventories of spare parts, and other issues.
Date: September 1, 2011
Creator: Bruyere, S. A. & Cadwallader, L. C.
Partner: UNT Libraries Government Documents Department

Use of magnesium for recovering hydrogen isotopes from tritiated water

Description: Reacting tritiated water with hot metal to recover the tritium from tritiated water has been practiced for considerable time. A metal frequently used for this purpose has been uranium. Recent work at the Tritium Systems Test Assembly at Los Alamos National Laboratory has focused on using magnesium for this purpose. This work was done as part of the Annex IV collaboration between the US Department of Energy/TSTA and the Japan Atomic Energy Research Institute/Tritium Processing Laboratory. Magnesium appears to have reactive properties that are as good as uranium and possibly better, and, of course, magnesium is easier to handle and less strictly controlled. Both bench-scale and practical-scale experiments were conducted with magnesium, including tests with tritiated water. Mg bed construction techniques and operating parameters were determined. Testing showed that the Mg packed bed was very effective for recovering hydrogen isotopes from water. However, when used for this purpose either Mg or U is irreversibly consumed and must be disposed of as tritiated waste. It follows tat this processing technique would be inappropriate for a large tritiated water processing operation. However, this technique may find utility for small-scale systems.
Date: July 1, 1994
Creator: Willms, R. S.; Konishi, Satoshi & Okuno, Kenji
Partner: UNT Libraries Government Documents Department

Hydraulic testing of APT blanket assemblies

Description: The Thermal Fluids Laboratory (TFL) conducted hydraulic tests on two versions of the test samples of the Low Flux Blanket Assembly and on four High Flux Blanket Assemblies in support of the Area-A Tests to be conducted at Los Alamos National Laboratory (LANL). The first purpose for the tests was to check for manufacturing flaws that might have constricted cooling passages. No evidence of manufacturing flaws was found. The second purpose was to provide hydraulic information that could be used to calculate orifice sizes for limiting flow to the assemblies after installation. During the TFL hydraulic tests differential pressures were measured for the six pieces of hardware as functions of water flowrate. In all cases differential pressure was proportional to flowrate squared. The particular functional relationships needed by LANL are listed in graphical and tabular form.
Date: May 1, 1996
Creator: Steimke, J.L.
Partner: UNT Libraries Government Documents Department