Summary
The calibration procedure to determine the absorbed dose within a phantom irradiated with fast neutrons is described for ionization chambers. A comparison between values of the neutron dose determined with paired ionization chambers and values of the neutron fluence measured with a fission chamber (238U) is given. The comparison indicates the energy variation of the fast neutrons within a phantom irradiated with 14 MeV neutrons.
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References
Bach, R. L., Caswell, R. S.: Energy transfer to matter by neutrons. Radiat. Res.35, 1–25 (1968)
Bewley, D. K.: II. Physical aspects of the fast neutron beam. Brit. J. Radiol.36, 81–88 (1963)
Bewley, D. K.: Fast neutron beams for therapy. In: Current topics in radiation research, Vol. VI, p. 249 (Ebert, M., Howard, A.,Eds.). Amsterdam: North Holland 1970
Bewley, D. K., McCullough, E. C., Page, B. C., Sakata, S.: Determination of absorbed dose in a fast neutron beam by ionization and calorimetric methods. In: Proceedings of the First Symposium on Neutron Dosimetry in Biology and Medicine, Neuherberg (München), Vol. I, p. 159 (Burger, G., Schraube, H., Ebert, H. G.,Eds.). Luxembourg: Euratom 4896 d-f-e 1972
Bewley, D. K., Parnell, C. J.: The fast neutron beam from the M.R.C. cyclotron. Brit. J. Radiol.42, 281–288 (1969)
Broerse, J. J.: Effects of energy dissipation by monoenergetic neutrons in mammalian cells and tissues. Rijswijk: Radiobiological Institute TNO 1966
Dennis, J. A., Delafield, H. J., Peaple, L. H. J., Boot, S. J.: An intercomparison of flux and ionization chamber measurements of mono-energetic neutrons in the energy range 100 keV to 15 MeV. In: Proceedings of the First Symposium on Neutron Dosimetry in Biology and Medicine, Neuherberg (München), Vol. I, p. 239 (Burger, G., Schraube, H., Ebert, H. G.,Eds.). Luxembourg: Euratom 4896 d-f-e 1972
Fairchild, R. G., Robertson, J. S., Levine, D. A., Goodman, L. J.: A tissue-equivalent ionization chamber for inphantom dosimetry: Comparison of measured values with calculated values. Health Phys.12, 787–792 (1966)
Goodman, L. J.: Neutron dosimetry at the radiological research accelerator facility. In: Proceedings of the First Symposium on Neutron Dosimetry in Biology and Medicine, Neuherberg (München), Vol. I, p. 177 (Burger, G., Schraube, H., Ebert, H. G.,Eds.). Luxembourg: Euratom 4896 d-f-e 1972
Hiraoka, T., Kawashima, K., Inada, T., Matsuzawa, H.: Paired ionization chambers for measurement of neutrons and gamma rays. Strahlentherapie141, 64–68 (1971)
Hubbel, J. H., Berger, M. J.: Photon attenuation and energy absorption coefficients. Tabulations and discussion. NBS Report 8681. Washington DC: National Bureau of Standards 1966
International Commission on Radiological Units and Measurements (ICRU): Physical Aspects of Irradiation. Rep. 10b. Washington D.C.: U.S. Government Printing Office 1962
Jesse, W. P., Sadauskis, J.: Ionization in pure gases and the average energy to make an ion pair for alpha and beta particles. Phys. Rev.97, 1668–1670 (1955)
Kühn, H.: Calibration and characteristics of ionization chambers for fast neutron irradiations. In: Dosimetry in Agriculture, Industry, Biology and Medicine. Wien: International Atomic Energy Agency 1973
Kühn, H., Müller, A.: Dosimetry measurements in neutron beams with ionization chambers. In: Proceedings of the First Symposium on Neutron Dosimetry in Biology and Medicine, Neuherberg (München), Vol. I, p. 211 (Burger, G., Schraube, H., Ebert, H. G.,Eds.). Luxembourg: Euratom 4896 d-f-e 1972
Myers, I. T.: Ionization. In: Radiation dosimetry, Vol. I, p. 317 (Attix, F. H., Roesch, W.,Eds.). New York: Academic Press 1968
Rossi, H. H., Failla, G.: Tissue-equivalent ionization chambers. Nucleonics14, 2, 32–37 (1956)
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Dedicated to Prof. Dr. Dr. h. c. mult. B. Rajewsky on the occasion of his 80th birthday.
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Kühn, H. Aspects in practical neutron dosimetry with ionization chambers. Biophysik 10, 229–234 (1973). https://doi.org/10.1007/BF01190582
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DOI: https://doi.org/10.1007/BF01190582