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    • 3. 发明申请
    • PARTICLE BEAM IRRADIATION APPARATUS AND CONTROL METHOD OF THE PARTICLE BEAM IRRADIATION APPARATUS
    • 颗粒光束辐射装置和颗粒光束辐射装置的控制方法
    • US20120305790A1
    • 2012-12-06
    • US13577741
    • 2011-02-07
    • Katsushi HanawaYasushi IsekiNobukazu KakutaniTakuji FurukawaTaku InaniwaShinji SatoKouji Noda
    • Katsushi HanawaYasushi IsekiNobukazu KakutaniTakuji FurukawaTaku InaniwaShinji SatoKouji Noda
    • A61N5/10
    • A61N5/1043A61N5/1071A61N2005/1074A61N2005/1087G21K1/025
    • Provided is a particle beam irradiation apparatus capable of highly reliable measurement of a dose of each beam and capable of highly sensitive measurement of a leakage dose caused by momentary beam emission. The particle beam irradiation apparatus according to the present invention includes: an emission control portion that controls emission and termination of a particle beam; a control portion that sequentially changes an irradiation position of the particle beam relative to an affected area; first and second dosimeters that measure dose rates of the particle beam directed to the affected area; and an abnormality determination portion that accumulates the dose rates output from the first and second dosimeters for each of predetermined determination periods to calculate first and second sectional dose measurement values and that performs second abnormality determination of determining that there is an abnormality and outputs an interlock signal for terminating the emission of the particle beam in at least one of a case in which the first sectional dose measurement value exceeds a predetermined first reference range and a case in which the second sectional dose measurement value exceeds a predetermined second reference range.
    • 提供一种能够高度可靠地测量每个光束的剂量并且能够高度敏感地测量由瞬时光束发射引起的泄漏剂量的粒子束照射装置。 根据本发明的粒子束照射装置包括:发射控制部分,其控制粒子束的发射和终止; 控制部,其依次改变所述粒子束相对于受影响区域的照射位置; 测量指向受影响区域的粒子束的剂量率的第一和第二剂量计; 以及异常判定部,其对于每个规定的判定期间累积从第一和第二剂量计输出的剂量率,以计算第一和第二截面剂量测量值,并且执行确定存在异常的第二异常判定并输出互锁信号 用于在第一部分剂量测量值超过预定的第一参考范围的情况和第二部分剂量测量值超过预定的第二参考范围的情况中的至少一个中终止粒子束的发射。
    • 9. 发明授权
    • Charged particle beam irradiator and rotary gantry
    • 带电粒子束照射器和旋转龙门架
    • US07919759B2
    • 2011-04-05
    • US11792940
    • 2005-10-31
    • Takuji FurukawaKouji Noda
    • Takuji FurukawaKouji Noda
    • H01J1/50
    • A61N5/10A61N5/1081A61N2005/1087G21K5/04H05H7/04
    • A charged particle beam 2 which enters a final bending electromagnet 7 after traveling through quadrupole electromagnets 4, 5, 6 travels through the final bending electromagnet 7 in an arc shape path by increasing or decreasing a bending magnetic field generated in the final bending electromagnet 7, with a pre-determined period for example and is scanned in an X-direction. The charged particle beam 2 scanned in the X-direction is scanned in a Y-direction while traveling through a Y-direction Wobbler electromagnet 8. Consequently, the charged particle beam 2 is scanned in the X-direction and the Y-direction, and the target 9 is irradiated with the charged particle beam 2 so that a round field is drawn, for example.
    • 在通过四极电磁体4,5,6行进之后进入最终弯曲电磁体7的带电粒子束2通过增加或减少最终弯曲电磁体7中产生的弯曲磁场而以弧形轨迹行进通过最终弯曲电磁体7, 以预定的时间段为例,并沿X方向进行扫描。 沿X方向扫描的带电粒子束2在Y方向摆动电磁体8行进时沿Y方向扫描。因此,带电粒子束2沿X方向和Y方向扫描, 例如,用带电粒子束2照射靶9以使得圆场被绘制。