Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements

H. Koivunoro (Corresponding Author), H. Hyvönen, J. Uusi-Simola, I. Jokelainen, A. Kosunen, M. Kortesniemi, T. Seppälä, Iiro Auterinen, S. Savolainen

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    Magnesium-walled argon gas flow ionization chamber (Mg(Ar)) is used for photon dose measurements in the epithermal neutron beam of FiR 1 reactor in Finland. In this study, the photon dose measurements were re-evaluated against calculations applying a new chamber calibration factor defined in water instead of in air. Also, effect of the build-up cap on the measurements was investigated. The new calibration factor provides improved agreement between measured and calculated photon dose. Use of the build-up cap does not affect the measured signal in water in neutron beam.
    Original languageEnglish
    Pages (from-to)1901-1903
    Number of pages3
    JournalApplied Radiation and Isotopes
    Volume69
    Issue number12
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    ionization chambers
    caps
    neutron beams
    dosage
    photons
    water
    Finland
    gas flow
    magnesium
    chambers
    reactors
    argon
    air

    Keywords

    • BNCT
    • 60Co
    • dosimetry
    • ionization chamber
    • SERA
    • MCNP

    Cite this

    Koivunoro, H., Hyvönen, H., Uusi-Simola, J., Jokelainen, I., Kosunen, A., Kortesniemi, M., ... Savolainen, S. (2011). Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements. Applied Radiation and Isotopes, 69(12), 1901-1903. https://doi.org/10.1016/j.apradiso.2011.03.037
    Koivunoro, H. ; Hyvönen, H. ; Uusi-Simola, J. ; Jokelainen, I. ; Kosunen, A. ; Kortesniemi, M. ; Seppälä, T. ; Auterinen, Iiro ; Savolainen, S. / Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements. In: Applied Radiation and Isotopes. 2011 ; Vol. 69, No. 12. pp. 1901-1903.
    @article{6e9ddc570e5f48458c7414aa049f1b86,
    title = "Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements",
    abstract = "Magnesium-walled argon gas flow ionization chamber (Mg(Ar)) is used for photon dose measurements in the epithermal neutron beam of FiR 1 reactor in Finland. In this study, the photon dose measurements were re-evaluated against calculations applying a new chamber calibration factor defined in water instead of in air. Also, effect of the build-up cap on the measurements was investigated. The new calibration factor provides improved agreement between measured and calculated photon dose. Use of the build-up cap does not affect the measured signal in water in neutron beam.",
    keywords = "BNCT, 60Co, dosimetry, ionization chamber, SERA, MCNP",
    author = "H. Koivunoro and H. Hyv{\"o}nen and J. Uusi-Simola and I. Jokelainen and A. Kosunen and M. Kortesniemi and T. Sepp{\"a}l{\"a} and Iiro Auterinen and S. Savolainen",
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    year = "2011",
    doi = "10.1016/j.apradiso.2011.03.037",
    language = "English",
    volume = "69",
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    Koivunoro, H, Hyvönen, H, Uusi-Simola, J, Jokelainen, I, Kosunen, A, Kortesniemi, M, Seppälä, T, Auterinen, I & Savolainen, S 2011, 'Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements', Applied Radiation and Isotopes, vol. 69, no. 12, pp. 1901-1903. https://doi.org/10.1016/j.apradiso.2011.03.037

    Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements. / Koivunoro, H. (Corresponding Author); Hyvönen, H.; Uusi-Simola, J.; Jokelainen, I.; Kosunen, A.; Kortesniemi, M.; Seppälä, T.; Auterinen, Iiro; Savolainen, S.

    In: Applied Radiation and Isotopes, Vol. 69, No. 12, 2011, p. 1901-1903.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Effect of the calibration in water and the build-up cap on the Mg(Ar) ionization chamber measurements

    AU - Koivunoro, H.

    AU - Hyvönen, H.

    AU - Uusi-Simola, J.

    AU - Jokelainen, I.

    AU - Kosunen, A.

    AU - Kortesniemi, M.

    AU - Seppälä, T.

    AU - Auterinen, Iiro

    AU - Savolainen, S.

    N1 - Special Issue: 14th International Conference on Neutron Capture Therapy

    PY - 2011

    Y1 - 2011

    N2 - Magnesium-walled argon gas flow ionization chamber (Mg(Ar)) is used for photon dose measurements in the epithermal neutron beam of FiR 1 reactor in Finland. In this study, the photon dose measurements were re-evaluated against calculations applying a new chamber calibration factor defined in water instead of in air. Also, effect of the build-up cap on the measurements was investigated. The new calibration factor provides improved agreement between measured and calculated photon dose. Use of the build-up cap does not affect the measured signal in water in neutron beam.

    AB - Magnesium-walled argon gas flow ionization chamber (Mg(Ar)) is used for photon dose measurements in the epithermal neutron beam of FiR 1 reactor in Finland. In this study, the photon dose measurements were re-evaluated against calculations applying a new chamber calibration factor defined in water instead of in air. Also, effect of the build-up cap on the measurements was investigated. The new calibration factor provides improved agreement between measured and calculated photon dose. Use of the build-up cap does not affect the measured signal in water in neutron beam.

    KW - BNCT

    KW - 60Co

    KW - dosimetry

    KW - ionization chamber

    KW - SERA

    KW - MCNP

    U2 - 10.1016/j.apradiso.2011.03.037

    DO - 10.1016/j.apradiso.2011.03.037

    M3 - Article

    VL - 69

    SP - 1901

    EP - 1903

    JO - Applied Radiation and Isotopes

    JF - Applied Radiation and Isotopes

    SN - 0969-8043

    IS - 12

    ER -