Neutron Capture Therapy by Wolfgang Sauerwein Andrea Wittig Raymond Moss & Yoshinobu Nakagawa

Author:Wolfgang Sauerwein, Andrea Wittig, Raymond Moss & Yoshinobu Nakagawa
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

14.3.1.6 Fast Neutrons

The beam quality correction factor for fast neutrons is given by (cf Eq. 14.8)

(14.11)

where the factors were defined previously. Assuming that the detector reading can be written as the product of the absorbed dose delivered to the detector gas, , the inverse of the average energy required to produce an ion pair in the detector gas for the actual charged particle spectra for beam quality Q, , and the mass of the detector gas, , gives

(14.12)

Inserting Eq. 14.11 in Eq. 14.12 gives

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