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    • 54. 发明申请
    • METHOD AND APPARATUS FOR THE RANGE CONTROL OF PARTICLE RADIATION OF A RADIATION DEVICE FOR RADIATION THERAPY
    • 用于辐射治疗的辐射装置的颗粒辐射范围控制的方法和装置
    • WO2015040225A1
    • 2015-03-26
    • PCT/EP2014/070159
    • 2014-09-22
    • TECHNISCHE UNIVERSITÄT DRESDENHELMHOLTZ-ZENTRUM DRESDEN - ROSSENDORF E.V.ION BEAM APPLICATIONS S.A.
    • PAUSCH, GuntramENGHARDT, WolfgangGOLNIK, ChristianJANSSENS, GuillaumePRIEELS, DamienSMEETS, JulienVANDER STAPPEN, FrancoisHUESO-GONZALEZ, Fernando
    • G01T1/29
    • A61N5/1067A61N2005/1052A61N2005/1074A61N2005/1087G01T1/24G01T1/29
    • The invention relates to a device and a method for the monitoring of the range of a particle radiation (3) of a radiation device (1) for radiation therapy with at least one detector (2) being able to detect single gamma particles (4) and at least one analyzer (7), characterized in that when detecting a gamma particle (4), furthermore denominated as event, a signal is created in the detector (2), whereby the signal is correlated in time with the arrival of the gamma particle (4) in detector (2), the analyzer (7), analyzing the signal of the detector (2), does assign either every event or selected events a time of detection, the radiation device (1) or a separate particle detector (8) does provide a reference signal, which is correlated to the emersion of single particles or particle bunches from the radiation device (1) out of the radiation device (1) with an uncertainty in time of equal or smaller than 10 ns, a time is obtained from the reference signal for each event or each of the selected events in the analyzer (7), at which the particle or the particle bunch, which has produced the gamma particle (4) detected by the detector (2), further described as event triggering particle or particle bunch, has passed a reference plane perpendicular to the direction of the beam of the radiation device (1), the time difference between the time of the detection of the gamma particle (4) in the detector (2) and the time of the passing of the reference plane by the event triggering particle or particle bunch is calculated for each event or the selected events within the analyzer (7), at least one statistic distribution (6) of the time differences is obtained in the analyzer (7), furthermore described as time distribution (6), and that the time distribution (6) is analyzed and information about the range of the particle beam (3) is derived therefrom, so that a statement with respect to the conformity of the therapy to be monitored with the apparatus with the therapy plan can be obtained mainly from that time distribution (6).
    • 本发明涉及一种用于监测放射治疗用辐射装置(1)的粒子辐射(3)的范围的装置和方法,其中至少一个检测器(2)能够检测单个γ粒子(4) 和至少一个分析器(7),其特征在于,当检测到另外被称为事件的伽马粒子(4)时,在所述检测器(2)中产生信号,由此所述信号在伽马粒子 检测器(2)中的粒子(4),分析器(7)分析检测器(2)的信号,分配每个事件或所选事件一次检测时间,辐射装置(1)或单独的粒子检测器 (8)确实提供参考信号,该参考信号与来自辐射装置(1)的单个颗粒或粒子束从辐射装置(1)的散射相关,具有等于或小于10ns的时间不确定度,a 从每个事件的参考信号或每个事件的每一个获得时间 在分析器(7)中的选定的事件,其中产生由检测器(2)检测到的伽马粒子(4)的粒子或粒子束进一步描述为事件触发粒子或粒子束,已经通过参考平面 垂直于辐射装置(1)的光束的方向,检测器(2)中的伽马粒子(4)的检测时间与事件通过参考平面的时间之间的时间差 针对每个事件或分析仪(7)内的所选事件计算触发粒子或粒子束,在分析器(7)中获得时间差异的至少一个统计分布(6),进一步描述为时间分布(6) ,并且分析时间分布(6),并且从其导出关于粒子束(3)的范围的信息,从而关于待监视的治疗与用于治疗计划的装置的一致性的声明可以 是o 主要从那个时间分配(6)。