Download or read book Tritium Monitoring Techniques written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tritium Measurement Techniques written by National Council on Radiation Protection and Measurements and published by Ncrp. This book was released on 1976 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As a consequence of the increasing importance of tritium resulting from nuclear fission and neutron activation, from its use in accelerators, from its use in research and industry, and from its use in the investigation of the environment and its distribution in the environment, the NCRP designated a scientific committee to prepare a report on the currently acceptable methods of measuring tritium. This report is particularly aimed in assisting an individual to select a procedure suitable to the problem at hand." --From Preface, page iii.

Download or read book Evaluation of Tritium Analysis Techniques for a Continuous Tritium Monitor written by Steven Joseph Fernandez and published by . This book was released on 1978 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Critical Observations Concerning the Handling of High Levels of Tritium Radioactivity written by B. E. Vaughan and published by . This book was released on 1961 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data presented demonstrate substantial nonvolatile transfer of tritium from contaminated surfaces to skin by direct contact. Since radioactivity on the contaminated surfaces is not necessarily detectable by gas-flow monitoring methods, this route of entry of tritium into body tissue must be considered an unrecognized, potential hazard, where the handling of apparatus exposed to high levels of tritium is concerned. The liability of contact-transferred tritium in skin, its chemical form and location within the skin, and the exact radioactivity content of the contaminated surfaces are particular problems remaining to be established by exact methods. The demonstration of non-volatile contact transfer is reported here because of its significance to health safety practice.

Download or read book Tritium Control Technology written by P. H. Lamberger and published by . This book was released on 1973 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring of Tritium contaminated Surfaces Including Skin written by R. A. Surette and published by Chalk River, Ont. : Radiation Biology and Health Physics Branch, Chalk River Laboratories. This book was released on 1994 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dcc-1 and dcc-2 experiments have provided the first data on dryout and quench behavior of internally heated uo2 debris in water. the pressure range of this data extends from 1 to 170 atmoshperes. both of the experiments used the annual core research reactor (acrr) at sandia national laboratories to simulate the effects of radioactive decay heating. the debris in dcc-1 ranged from 75 microns to in excess of 10 mm in diameter, with a mean diameter of 0.75 mm. the bed depth was 0.5 m and the porosity was 0.345. dryout heat fluxes ranged from about 41 kw/m sup(2) (0.021 w/g) at a saturation temperature of 100 degrees celcius to about 69 kw/m sup(2) (0.021 w/g) at 340 degrees celcius. this measured pressure dependence is a factor of two to three lower than predicted by the analytical models. this is believed to be due to the breadth of the debris distribution, but the evidence is inconclusive. quenches of dried debris took hours to complete. quench fronts progressed uniformly without the liquid fingers observed in large particle tests. the debris distribution in dcc-2 was much narrower than in dcc 1, with the majority of particles having diameters between 0.5 and 8 mm. a small amount of "fines" with diameters down to 75 microns was added to the mixture. in dcc-2, thermally stable local dry zones were observed at bed power below the conventional dryout point. these are believed to be caused by the concentration of fines creating a low permeability zone. data on global dryout, in which the bed bottom can dry out, agree well with analytical predictions. quenches of dry zones took about 10 minutes to complete. the quench fronts were not uniform, having a liquid finger which penetrated to the bottom of the bed before the quench was complete.

Download or read book Tritium H 3 Monitoring Basic Principals Sampling Techniques and Examples written by and published by . This book was released on 2007 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tritium Measurement Techniques written by and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Health Physics Bibliography on Tritium written by and published by . This book was released on 1964 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tritium Measurement Techniques written by National Council on Radiation Protection and Measurements and published by . This book was released on 1976 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tritium Measurement Techniques written by National Council on Radiation Protection and Measurements NCRP. and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tritium Measurement Techniques written by NCRP. and published by . This book was released on 1975 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for the Determination of Tritium written by Myra S. Feldman and published by . This book was released on 1962 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instruments for the Monitoring of Tritium in the Atmosphere written by and published by . This book was released on 1955 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Simple Monitor for Tritium Contamination on Surfaces written by Donald W. Colvin and published by . This book was released on 1957 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Techniques for the Use and Control of Tritium at Savannah River written by Edward L. Albenesius and published by . This book was released on 1962 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement Techniques for Tritium and Carbon 14 written by Bommadeni Arun and published by Self Employed. This book was released on 2023-03-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tritium and radiocarbon are pure beta emitters. Tritium has an average energy of 5.7 keV and endpoint energy of 18.6 keV [1]. Radiocarbon has an average energy of 49.5 keV and endpoint energy of 156 keV. The half-life of tritium and radiocarbon is 12.3 years and 5730 years, respectively. Hydrogen has three isotopes, namely hydrogen (1H), deuterium (2H), and tritium (3H). Among the three isotopes, tritium alone is a radioactive isotope. The natural abundance of hydrogen, deuterium, and tritium are 99.985%, 0.015%, and 1x10-18%. Carbon is also having three isotopes 12C, 13C, and 14C. The isotopes 12C and 13C are stable, whereas 14C is radioactive. The natural abundance of 12C, 13C and 14C are approximately 98.89%%, 1.11% and 1.2 x 10-10% respectively. Tritium is continuously produced in the atmosphere with cosmic-ray induced neutron activation of atmospheric gases. The reaction occurs with fast neutrons. The threshold neutron energy for the 14N (1n, 3H) 12C is 4 MeV [1].