Standardization and decay data determinations of 125I, 54Mn and 203Hg

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
M A L da SilvaR T Lopes

Abstract

The absolute 4pi-betagamma coincidence counting has been used to measure the activity concentrations of 54Mn and 203Hg, and the Sum-Peak method was used for 125I. 54Mn and 125I radionuclides have been part of international key-comparisons coordinated by the Bureau International des Poids et Measures (BIPM) in 2003/2004, while 203Hg is part of the traceability programme of the National Laboratory for Ionizing Radiation Metrology (LNMRI)/Brazil. Three different detectors were used for the Sum-Peak method: 3''x3'' NaI(Tl) and 5''x5'' well NaI(Tl) scintillation detectors and a planar germanium detector. Direct measurements were made of the photon emission probabilities of the 35.5-, 834.8- and 279.2-keV gamma-rays of 125I, 54Mn and 203Hg to give values of (0.0667+/-0.0014), (0.9997+/-0.0055) and (0.8161+/-0.0005), respectively. The half-lives of 203Hg and 54Mn were also determined by means of a 4pigamma ionization chamber (203Hg) and by the reference source method using a HPGe detector (54Mn) to give values of (46.639+/-0.023) days and (312.1+/-0.9) days, respectively.

References

Mar 1, 1977·The International Journal of Applied Radiation and Isotopes·G A BrinkmanJ T Veenboer
Feb 28, 2004·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Mônica A L da SilvaJosé U Delgado

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Citations

Jan 26, 2016·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·M T F AraújoR T Lopes
Jun 10, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·A IwaharaL Tauhata
Nov 21, 2015·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Valery P Chechev, Nikolay K Kuzmenko
May 26, 2016·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Jennifer Barsky Reese, Jennifer A Haythornthwaite
Apr 4, 2016·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Lixin SongLaurel L Northouse
Aug 2, 2012·AIDS and Behavior·Ramiro Caballero-HoyosJoel Monárrez-Espino
Sep 15, 2010·AIDS and Behavior·Benjamin R KarneyJeffry A Simpson
Jan 26, 2012·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Sharon ManneDeborah J Bowen
Feb 21, 2019·Child Psychiatry and Human Development·Amy K NuttallRyan P Bowles
Jul 1, 2018·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Christopher CamaraNicole P M Ezendam
Aug 31, 2013·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Alfred KünzlerKaren Kayser
Nov 11, 2017·Eating and Weight Disorders : EWD·Chong Man ChowLilian Ellis

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