Physica Medica: European Journal of Medical Physics
Volume 26, Issue 3 , Pages 126-131 , July 2010

Experimental determination of the effective point of measurement of cylindrical ionization chambers for high-energy photon and electron beams

  • Yanxiao Huang

      Affiliations

    • Department of Electrical, Mechanical and Industrial Engineering, Anhalt University of Applied Sciences, Koethen, Germany
    • ,
  • Christian Willomitzer

      Affiliations

    • Department of Radiotherapy, Staetisches Klinikum Dessau, Dessau, Germany
    • ,
  • Golam Abu Zakaria

      Affiliations

    • Department of Electrical, Mechanical and Industrial Engineering, Anhalt University of Applied Sciences, Koethen, Germany
    • Department of Medical Radiation Physics, Kreiskrankenhaus Gummersbach, Academic Teaching Hospital of the University of Cologne, Gummersbach, Germany
    • Corresponding Author InformationCorresponding author at: Department of Medical Radiation Physics, Kreiskrankenhaus Gummersbach, Academic Teaching Hospital of the University of Cologne, Wilhelm-Breckow-Allee 20, 51643 Gummersbach, Germany. Tel.: +49 2261 171859; fax: +49 2261 171862.
    • ,
  • Guenther H. Hartmann

      Affiliations

    • Department of Medical Physics in Radiotherapy, German Cancer Research Center, Heidelberg, Germany

Received 19 December 2008 ,Revised 31 July 2009 ,Accepted 8 October 2009.

References 

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  2. Almond PR, Biggs PJ, Coursey BM, Hanson WF, Huq MS, Nath R, et al. AAPM's TG–51 protocol for clinical reference dosimetry of high-energy photon and electron beams. Med Phys. 1999;26:1847–1870
  3. DIN 6800-2. Procedures of dosimetry with probe-type detectors for photon and electron radiation-part 2: Ionization chamber dosimetry of high energy photon and electron radiation. 2008.
  4. Andreo P. The status of high-energy photon and electron beam dosimetry five years after the implementation of the IAEA code of practice in the Nordic countries. Acta Oncol. 1993;32:483–500
  5. Sheikh-Bagheri D, Rogers DWO, Ross CK, Seuntjens JP. Comparison of measured and Monte Carlo calculated dose distributions from the NRC linac. Med Phys. 2000;27:2256–2266
  6. Das IJ, McNeeley SW, Cheng CW. Ionization chamber shift correction and surface dose measurements in electron beams. Phys Med Biol. 1998;43:3419–3424
  7. Kawrakow I. On the effective point of measurement in megavoltage photon beams. Med Phys. 2006;33:1829–1839
  8. McEwen MR, Kawrakow I, Ross CR. The effective point of measurement of ionization chambers and the build-up anomaly in MV x-ray beams. Med Phys. 2008;35:950–958
  9. Shimono T, Nanbu H, Koshida K, Kikuchi Y. Analysis of the effective point of measurement of a thimble chamber dosimeter set parallel to the X-ray beam axis. Igaku Butsuri. 2007;27(1):17–25
  10. Bruggmoser G, Saum R, Schmid F. Wo befindet sich der effektive Messort einer PTW 34001 Roos Kammer. In: Dreiländertagung für Medizinische Physik. Bern: Hrg.: R. Mini; 2007;

PII: S1120-1797(09)00054-4

doi: 10.1016/j.ejmp.2009.10.001

Physica Medica: European Journal of Medical Physics
Volume 26, Issue 3 , Pages 126-131 , July 2010

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