Standard three dimensional radiotherapy and the aforementioned measurement area the line of the aforementioned radiation detector of limited number (70,71,80,81,90) with, the additional radiation detector for energy measurement of the electronic beam or the photon line (52,62) with to consist of the radiotherapy by the especially dose intensity distribution irregularity radiation field (IMRT) with the dosimetry device which possesses the measurement area which consists of the line of the radiation detector in order to measure the quality of the radiation which is irradiated (10) in, the aforementioned dosimetry device (10) furthermore the energy attenuation section (53,63) the mount board which it possesses (50,60) have, the aforementioned energy attenuation section (53,63) Alongside the radiation beam the aforementioned additional radiation detector (52,62) it features that it is provided high-level.標準的な三次元放射線治療、特に線量強度分布変調照射野による放射線治療(IMRT)で照射される放射線の品質を測定するための放射線検出器の列から成る測定エリアを有する線量測定装置(10)において、前記測定エリアは有限数の前記放射線検出器の列(70,71,80,81,90)と、電子線または光子線のエネルギ測定用の追加放射線検出器(52,62)とから成り、前記線量測定装置(10)はさらにエネルギ減衰部(53,63)を有する載置板(50,60)を備え、前記エネルギ減衰部(53,63)は放射線ビームに沿って前記追加放射線検出器(52,62)の上流に設けられることを特徴とする。
