Literature DB >> 31654881

Primary standardization of 224Ra activity by liquid scintillation counting.

Elisa Napoli1, Jeffrey T Cessna2, Ryan Fitzgerald2, Leticia Pibida2, Ronald Collé2, Lizbeth Laureano-Pérez2, Brian E Zimmerman2, Denis E Bergeron3.   

Abstract

A standard for activity of 224Ra in secular equilibrium with its progeny has been developed, based on triple-to-double coincidence ratio (TDCR) liquid scintillation (LS) counting. The standard was confirmed by efficiency tracing and 4παβ(LS)-γ(NaI(Tl)) anticoincidence counting, as well as by 4πγ ionization chamber and NaI(Tl) measurements. Secondary standard ionization chambers were calibrated with an expanded uncertainty of 0.62% (k = 2). Calibration settings were also determined for a 5 mL flame-sealed ampoule on several commercial reentrant ionization chambers (dose calibrators). Published by Elsevier Ltd.

Entities:  

Keywords:  Activity calibration; Alpha therapy; Anticoincidence counting; Efficiency tracing; Liquid scintillation; TDCR

Year:  2019        PMID： 31654881      PMCID： PMC7055090          DOI： 10.1016/j.apradiso.2019.108933

Source DB:  PubMed          Journal:  Appl Radiat Isot        ISSN： 0969-8043            Impact factor:   1.513


  16 in total

1.  Experimental determinations of commercial 'dose calibrator' settings for nuclides used in nuclear medicine.

Authors:  B E Zimmerman; J T Cessna
Journal:  Appl Radiat Isot       Date:  2000-03       Impact factor: 1.513

2.  Construction and implementation of the NIST triple-to-double coincidence ratio (TDCR) spectrometer.

Authors:  B E Zimmerman; R Collé; J T Cessna
Journal:  Appl Radiat Isot       Date:  2004 Feb-Apr       Impact factor: 1.513

3.  A new primary standardization of 229Th.

Authors:  R Fitzgerald; R Collé; L Laureano-Pérez; L Pibida; M M Hammond; S Nour; B E Zimmerman
Journal:  Appl Radiat Isot       Date:  2010-01-13       Impact factor: 1.513

4.  An automated ionization chamber for secondary radioactivity standards.

Authors:  R Fitzgerald
Journal:  Appl Radiat Isot       Date:  2010-01-19       Impact factor: 1.513

5.  Improved method for the calculation of the counting efficiency of electron-capture nuclides in liquid scintillation samples.

Authors:  K Kossert; A Grau Carles
Journal:  Appl Radiat Isot       Date:  2009-12-01       Impact factor: 1.513

6.  An update on 'dose calibrator' settings for nuclides used in nuclear medicine.

Authors:  Denis E Bergeron; Jeffrey T Cessna
Journal:  Nucl Med Commun       Date:  2018-06       Impact factor: 1.690

7.  Comparison of tritiated-water standards by liquid scintillation for calibration of a new Standard Reference Material®.

Authors:  R Collé; L Laureano-Perez; D E Bergeron
Journal:  Appl Radiat Isot       Date:  2016-03-05       Impact factor: 1.513

Review 8.  Peteosthor - a medical disaster due to Radium-224A personal recollection.

Authors:  Heinz Spiess
Journal:  Radiat Environ Biophys       Date:  2002-10-01       Impact factor: 1.925

9.  Monte Carlo modelling of live-timed anticoincidence (LTAC) counting for Cu-64.

Authors:  Denis E Bergeron; Ryan Fitzgerald
Journal:  Appl Radiat Isot       Date:  2017-09-23       Impact factor: 1.513

10.  Performance assessment of a NaI(Tl) gamma counter for PET applications with methods for improved quantitative accuracy and greater standardization.

Authors:  Martin A Lodge; Daniel P Holt; Paul E Kinahan; Dean F Wong; Richard L Wahl
Journal:  EJNMMI Phys       Date:  2015-05
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  2 in total

1.  Radionuclide calibrator responses for 224Ra in solution and adsorbed on calcium carbonate microparticles.

Authors:  Elisa Napoli; Jeffrey T Cessna; Leticia Pibida; Ryan Fitzgerald; Gro E Hjellum; Denis E Bergeron
Journal:  Appl Radiat Isot       Date:  2020-06-12       Impact factor: 1.513

2.  Ra-224 activity, half-life, and 241 keV gamma ray absolute emission intensity: A NIST-NPL bilateral comparison.

Authors:  Denis E Bergeron; Sean M Collins; Leticia Pibida; Jeffrey T Cessna; Ryan Fitzgerald; Brian E Zimmerman; Peter Ivanov; John D Keightley; Elisa Napoli
Journal:  Appl Radiat Isot       Date:  2020-12-31       Impact factor: 1.513
  2 in total

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