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Author: National Council on Radiation Protection and Measurements
Publisher: Ncrp
ISBN:
Category : Science
Languages : en
Pages : 108
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Book Description
"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.
Author: National Council on Radiation Protection and Measurements
Publisher: Ncrp
ISBN:
Category : Science
Languages : en
Pages : 108
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Book Description
"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.
Author: National Council on Radiation Protection and Measurements
Publisher:
ISBN:
Category :
Languages : en
Pages : 97
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Book Description
Author: National Council on Radiation Protection and Measurements NCRP.
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: NCRP.
Publisher:
ISBN:
Category :
Languages : en
Pages : 109
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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ISBN: 9780913392294
Category : Hospitals
Languages : en
Pages :
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Author: Bommadeni Arun
Publisher: Self Employed
ISBN:
Category :
Languages : en
Pages : 0
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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].
Author: National Council on Radiation Protection and Measurements
Publisher:
ISBN:
Category : Hospitals
Languages : en
Pages :
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Author: Myra S. Feldman
Publisher:
ISBN:
Category : Tritium
Languages : en
Pages : 60
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Author: J.A.B. Gibson
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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