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Author: U.S. Atomic Energy Commission
Publisher:
ISBN:
Category : Tritium
Languages : en
Pages : 36
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Book Description
Author: U.S. Atomic Energy Commission
Publisher:
ISBN:
Category : Tritium
Languages : en
Pages : 36
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
This bibliography, arranged chronologically, consists of 250 references covering the period 1933 to 1950. Indexes to authors, subjects, and report numbers are included. The references listed cover primarily the nuclear and physical properties of tritium; a few articles on its use in tracer studies are included.
Author: David A.. Vaughan
Publisher:
ISBN:
Category : Tritium
Languages : en
Pages : 9
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Book Description
The 24-hour excretion of tritium radioactivity following both large and small injected doses of tritium-labeled pyridoxine hydrochloride was investigated in rats receiving various dietary treatments. Pyridoxine deficient animals retained more of the small (12 microgram) doses than did animals receiving an adequate diet. When the pyridoxine antagonist, desoxypridoxine, was fed to the pyridoxine deficient animals, retention of the tritium-pyridoxine was reduced. indicating that the antagonoist had tied up some of the tissue sites ordinarily available for pyridoxine or its derivatives. Cold exposure did not alter these relationships. Larger doses (500 microgram) of pyridoxine were used less efficiently, but the absolute amounts retained suggested that the vitamin can be stored in quite large amounts.
Author: Rainer Lässer
Publisher: Springer Science & Business Media
ISBN: 364273510X
Category : Science
Languages : en
Pages : 167
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Book Description
Hydrogen can behave as an alkaline metal or a halogen and can react with nearly all elements of the periodic table. This explains the large number of metal hydrides. Since T. Graham's first observation of the absorption of hydrogen in palladium in 1866 the behaviour of hydrogen in metals has been studied very extensively. The interest was motivated by the possible application of metal-hydrogen systems in new technologies (e.g., moderator material in nuclear fission reactors, reversible storage material for thermal energy and large amounts of hydrogen) and by the fact that metal hydrides show very exciting physical properties (e.g., superconductivity, quantum diffusion, order-disorder transitions, phase diagrams, etc.). Many of these properties have been determined for the stable hydrogen isotopes Hand D in various metals. In comparison, very little is known about the behaviour of the ra dioactive isotope tritium in metals. This book is a first attempt to summarize part of the knowledge of tritium gained in the last few years. In addition to the task of presenting the properties of tritium in metals, I have tried to compare these data with those of protium and deuterium. Furthermore, helium-3 is connected inse parably with tritium via the tritium decay. Therefore one chapter of this book is solely devoted to the curious properties of helium in metals caused mainly by its negligible solubility.
Author: Marija M. Janković
Publisher:
ISBN: 9781536135060
Category : Tritium
Languages : en
Pages : 0
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Book Description
Tritium, 3H (T), is a radioactive isotope of hydrogen. Naturally occurring tritium is rare on Earth, where trace amounts are formed by the interaction of the atmosphere with cosmic rays. Once formed in the stratosphere, the tritium atoms have a large amount of kinetic energy. At a pressure lower than atmospheric, they react with the oxygen, creating a stable radical HO2. This radical reacts with ozone, following the photochemical reaction of decomposition TO2 to HTO. Once tritium is incorporated into the water molecule, then it falls to the Earths surface as precipitation or snow, thus entering into the natural hydrological cycle. With a half-life of 12.32 years and a maximum energy of 18 keV beta radiation, this radioisotope is not dangerous externally, but it can be a radiation hazard when inhaled, ingested via food or water, or absorbed through the skin. The biological half-life ranges from around 7 to 14 days, so bioaccumulation of tritium is not a significant concern. Tritium is a very useful hydro-geological tracer and can be successfully applied in assessing the age of groundwater and residence times of continental hydrologic systems or as an oceanic transient tracer. Tritium releases from nuclear installations may be useful for some applications as a powerful local tracer, but on the other hand such releases may affect the reliability and accuracy of tritium use as a global tracer. For this reason, measuring of the activity concentrations of tritium is regularly a part of every national and/or international monitoring programme. Tritium is also used in radio luminescent light sources for watches and various instruments, and, along with deuterium, as a fuel for nuclear fusion reactors with applications in energy generation and weapons. The amount of tritium that appears in the atmosphere as a product of human activity comes from: nuclear reactors, production of nuclear weapons, atmospheric and above ground nuclear explosions, heavy water and tritium plants, and plants for tritium separation. The use of tritium labeled compounds for medical and research purposes is also a possible source of contamination by tritium. Knowledge of the tritium concentration distribution in the environment, awareness of various anthropogenic sources of tritium, and optimization of measurement conditions are of great importance in various applications and in preserving human health.
Author: Gheorghe Vasaru
Publisher: CRC Press
ISBN: 9780849343223
Category : Science
Languages : en
Pages : 330
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Book Description
Tritium Isotope Separation is the first book to present a current overview of the separation processes for tritium isotopes. The book consists of two parts. Part I explores the sources of tritium and the evolution of the world's tritium inventory. Part II describes the processes and plants used for tritium isotope separation, enrichment methods for tritium for analytical purposes, methods for recovering and enriching tritium from nuclear and thermonuclear plants, and the laser method. The book in general emphasizes applications, performance, characterization, laboratory experiments, pilot plants and industrial production, reliability, and cost. An author index, subject index, list of acronyms and abbreviations, and glossary have been included to make the book an even more valuable reference. Tritium Isotope Separation will be an essential book for all nuclear energy engineers, nuclear physicists, and others working with various aspects of isotope separation science.
Author:
Publisher: Delene Kvasnicka
ISBN:
Category :
Languages : en
Pages : 468
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Book Description
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 148
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Book Description
This publication contains information on the dosimetry and monitoring of tritium, the use of protective clothing for work with tritium, safe practices in tritium handling laboratories and details of tritium compatible materials. The information has been compiled from experience in the various applications of tritium and should represent valuable source material to all users of tritium, including those involved in fusion R&D.
Author: United States. Bureau of Naval Personnel
Publisher:
ISBN:
Category : Guided missiles
Languages : en
Pages : 376
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Book Description
Fundamentals of missile and nuclear weapons systems are presented in this book which is primarily prepared as the second text of a three-volume series for students of the Navy Reserve Officers' Training Corps and the Officer Candidate School. Following an introduction to guided missiles and nuclear physics, basic principles and theories are discussed with a background of the factors affecting missile flight, airframes, missile propulsion systems, control components and systems, missile guidance, guided missile ships and systems, nuclear weapons, and atomic warfare defense. In the area of missile guidance, further explanations are made of command guidance, beam-rider methods, homing systems, preset guidance, and navigational guidance systems. Effects of nuclear weapons are also described in categories of air, surface, subsurface, underwater, underground, and high-altitude bursts as well as various kinds of damages and injuries. Besides illustrations for explanation purposes, a table of atomic weights and a glossary of general terms are provided in the appendices.
Author:
Publisher:
ISBN:
Category : Rifles
Languages : en
Pages : 252
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Book Description
