Calorimetry of Heavy Charged Particle by Superconducting Transition-Edge Sensor
Calorimetry of Heavy Charged Particle by Superconducting Transition-Edge Sensor
复制标题
超导跃迁边缘传感器对重带电粒子的量热
DOI：
10.1007/s10909-018-2027-8
复制
发表时间：
2018
影响因子：
2
通讯作者：
Naruhiro Matsufuji
中科院分区：
文献类型：
--
作者：
Masashi Ohno;Tomoya Irimatsugawa;Yoshitaka Miura;Hiroyuki Takahashi;Tokihiro Ikeda;Chiko Otani;Makoto Sakama;Naruhiro Matsufuji
重离子癌症治疗可以摧毁肿瘤，同时保护周围的健康组织。通过控制重离子的入射能量，可以将穿透深度精确地调整到肿瘤区域。电离室通常用于测定重离子照射野的吸收剂量，然而，这些探测器的测量不确定度预计将保持在5%以上，这对治疗效果有负面影响。目前，我们已经开始研制应用超导渡越边缘传感器（TES）的高精度重离子束探测器。我们利用Ir/Au-TES与锡吸收体耦合，成功地探测了从千叶重离子医用加速器注入的氦离子。虽然脉冲是完全饱和的，因为温度变化超出了过渡区，信号长度反映了每个注入重离子的入射能量。这些结果表明了利用TES探测器进行重离子能量精密探测的可能性。
Heavy ion cancer therapy allows the tumors to destroy while sparing surrounding, healthy tissues. By controlling the incident energy of heavy ions, the penetration depth can be adjusted precisely to the tumor area. The ionizing chambers are usually used for the determination of absorbed dose in the heavy ion irradiation fields; however, uncertainty in measurement of these detectors is expected to remain by more than 5%, and this has a negative influence on the therapeutic effect. Now we began to develop the precision heavy ion beam detector applying the superconducting transition-edge sensor (TES). Using the Ir/Au-TES coupled to a tin absorber, we have succeeded to detect the helium ions which were injected from Heavy Ion Medical Accelerator in Chiba. Although pulses are fully saturated because the temperature change is beyond the transition region, the signal length reflects the incident energy of each injected heavy ion. These results indicate the possibility of the precision heavy ion energy detection applying the TES detector.