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Measurement of the branching ratio related to the internal pair production of Y-90

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F20%3AN0000001" target="_blank" >RIV/00177016:_____/20:N0000001 - isvavai.cz</a>

  • Alternative codes found

    RIV/00177016:_____/20:N0000022

  • Result on the web

    <a href="https://doi.org/10.1016/j.apradiso.2019.108942" target="_blank" >https://doi.org/10.1016/j.apradiso.2019.108942</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.apradiso.2019.108942" target="_blank" >10.1016/j.apradiso.2019.108942</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of the branching ratio related to the internal pair production of Y-90

  • Original language description

    The aim of the work is to determine the number of positron-electron pair creation in the E0 transition between the 1760.7 keV level and the ground level of the Zr-90 nucleus at the Y-90 decay. The number of conversions is determined from the number of 511 keV photons originating from positron annihilation corrected for the annihilation of positrons in flight. Emission of annihilation photons was determined from the measurements of 511 keV full-energy peak on two calibrated high-purity germanium detectors. The measurements were performed with two sources of a different construction. The first source was a 1 ml ampoule filled with Sr-90 solution (in equilibrium with Y-90) with an activity of 38.041 MBq inserted into an aluminum absorber. The other source was the evaporation residue of the Sr-90 solution (in equilibrium with Y-90) in a polyethylene absorber. In both cases, the annihilation of positrons occurred in the source materials. The efficiency of 511 keV photon detection was determined by Monte Carlo calculation, where the source was defined as a theoretical continuous positron spectrum with a maximum energy of 738 keV. The branching ratio related to the internal pair production during Y-90 decay was determined to be (3.26 ± 0.04) × 10-5 pairs/decay.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database

  • CEP classification

  • OECD FORD branch

    10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Result continuities

  • Project

    <a href="/en/project/8B16002" target="_blank" >8B16002: Metrology for clinical implementation of dosimetry in molecular radiotherapy</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Radiation and Isotopes

  • ISSN

    0969-8043

  • e-ISSN

  • Volume of the periodical

    156

  • Issue of the periodical within the volume

    156

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    5

  • Pages from-to

    108942

  • UT code for WoS article

  • EID of the result in the Scopus database

    2-s2.0-85073193779