Proportional Counting Techniques For Routine Tritium Analyses At Environmental Levels
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Total Pages | : |
Release | : 1981 |
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Techniques and procedures were developed to routinely analyze samples for tritium as part of research and monitoring programs on the transport of radionuclides released from the Savannah River Plant site. Because tritium concentrations in the environment are low, trace analysis methods were developed. The primary analysis technique involves converting aqueous samples to hydrogen gas which is mixed with propane and assayed in proportional counters. Counter background is reduced by massive shielding, anticoincidence gating with plastic scintillators, and pulse shape discrimination. The overall sensitivity for tritium is 0.02 pCi/g of water with a demonstrated precision of 6.3% at 1 pCi/g of water.
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Total Pages | : 830 |
Release | : 1986 |
Genre | : Power resources |
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Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
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Total Pages | : 7 |
Release | : 2016 |
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Since the early seventies, SRNL has pioneered low-level tritium analysis using various nuclear counting technologies and techniques. Since 1999, SRNL has successfully performed routine low-level tritium analyses with counting systems based on digital signal processor (DSP) modules developed in the late 1990s. Each of these counting systems are complex, unique to SRNL, and fully dedicated to performing routine tritium analyses of low-level environmental samples. It is time to modernize these systems due to a variety of issues including (1) age, (2) lack of direct replacement electronics modules and (3) advances in digital signal processing and computer technology. There has been considerable development in many areas associated with the enterprise of performing low level tritium analyses. The objective of this LDRD project was to design, build, and demonstrate a Next Generation Tritium Counting System (NGTCS), while not disrupting the routine low-level tritium analyses underway in the facility on the legacy counting systems. The work involved (1) developing a test bed for building and testing new counting system hardware that does not interfere with our routine analyses, (2) testing a new counting system based on a modern state of the art DSP module, and (3) evolving the low-level tritium counter design to reflect the state of the science.
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Total Pages | : 68 |
Release | : 1990 |
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Author | : Chin-Tzu Peng |
Publisher | : Elsevier |
Total Pages | : 559 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 0323146120 |
Liquid Scintillation Counting: Recent Applications and Development, Volume II. Sample Preparation and Applications documents the proceedings of the International Conference on Liquid Scintillation Counting, Recent Applications and Development, held on August 21-24, 1979 at the University of California, San Francisco. The conference brought together 180 scientists from 15 countries who share a common interest in promoting a better understanding of liquid scintillation science and technology. Liquid scintillation counting is one branch of nuclear metrology that many scientists of various disciplines use in tracing and quantification in their investigatory studies. The proceedings, consisting of 14 sections, include 76 of the 77 invited and contributed papers presented at the conference. The first volume contains 37 papers mainly dealing with the physical aspects of liquid scintillation science and technology. The present volume contains papers that cover sample preparation, flow counting, and emulsion (solgel) counting. It also includes studies on applications of liquid scintillation counting, such as chemiluminescence and bioluminescence, environmental monitoring, and biomedical and radioimmunoassays.
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Total Pages | : 912 |
Release | : 1976-05 |
Genre | : Nuclear energy |
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Total Pages | : 1286 |
Release | : 1984 |
Genre | : Nuclear energy |
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Author | : Michael F. L'Annunziata |
Publisher | : Academic Press |
Total Pages | : 1420 |
Release | : 2012-08-16 |
Genre | : Medical |
ISBN | : 0123848733 |
Authoritative reference providing the principles, practical techniques, and procedures for the accurate measurement of radioactivity.
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Total Pages | : 844 |
Release | : 1982 |
Genre | : Power resources |
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Author | : United States. Energy Research and Development Administration. Division of Safety, Standards, & Compliance |
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Total Pages | : 764 |
Release | : 1976 |
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