株式會社日立製作所;MITSUBISHI ELECTRIC CORPORATION;株式会社日立制作所;Hitachi, Ltd.
发明人:
本田泰三,池田昌广,池田昌廣
申请号：
MOJ002114
公开号：
MOJ002114B
申请日:
2016.04.19
申请国别(地区):
MO
年份:
2016
代理人:
摘要：
The purpose of the present invention provides a kind of particle beam irradiation system of dosage distribution that can provide irradiation target to higher speed higher precision in what. Particle beam irradiation system of the invention includes: scanning deflection electromagnet, which makes particle ray deflect and be scanned to it with deflection electromagnet； And energy width expands equipment, the energy width expands the energy width that equipment expands particle ray with what, to in the depth direction of irradiation target, SOBP is formed on the direction of illumination of particle ray, energy width expands the SOBP that the entire irradiation area that equipment is configured on the depth direction to irradiation target is formed on depth direction, and scanning is controlled with deflection electromagnet, so that the particle ray stepped movement of entire irradiation area of the point of irradiation that is formed in the transverse direction of irradiation target in irradiation target.本發明的目的在於提供一種能更高速地對照射目標提供更高精度的劑量分布的粒子射線照射系統。本發明的粒子射線照射系統包括：掃描用偏轉電磁鐵，該掃描用偏轉電磁鐵使粒子射線發生偏轉並對其進行掃描；以及能量寬度擴大設備，該能量寬度擴大設備用於擴大粒子射線的能量寬度，從而在照射目標的深度方向，即粒子射線的照射方向上形成SOBP，能量寬度擴大設備構成爲對照射目標的深度方向上的整個照射區域形成深度方向上的SOBP，並對掃描用偏轉電磁鐵進行控制，以使得粒子射線在照射目標上形成的照射點在照射目標的橫向上的整個照射區域呈階梯狀移動。
