Secondary emission monitor for low-interception monitoring (SLIM): an innovative nondestructive beam monitor for the extraction lines of a hadrontherapy center
IEEE Transactions on Nuclear Science（2004）
摘要
Real-time monitoring of hadrontherapy beam intensities and profiles is a critical issue for the optimization of the dose delivery to the patient tumour tissue, the patient safety, and the operation of the accelerator complex. For this purpose, an innovative beam monitor, based on the secondary emission of electrons by a nonperturbative, submicrometer-thick Al target placed directly in the extracted beam path, is being proposed. The secondary electrons, accelerated by an electrostatic focusing system, are detected by a monolithic silicon position sensitive sensor, which provides the beam intensity and position with a precision of 1 mm at a 10-kHz frame rate. The conceptual design and the engineering study optimized for hadrontherapy are presented together with the results of the laboratory tests with thermoionic electrons and the first measurements in a hadron beam.
更多查看译文
关键词
biological effects of radiation,dosimetry,electron accelerators,optimisation,particle beam diagnostics,position sensitive particle detectors,radiation therapy,secondary electron emission,silicon radiation detectors,tumours,accelerator complex,beam intensity,beam profiles,dose delivery,electrostatic focusing system,engineering study,extracted beam path,extraction lines,hadron beam,hadrontherapy beam intensities,hadrontherapy center,innovative nondestructive beam monitor,low-interception monitoring,monolithic silicon position sensitive sensor,nonperturbative submicrometer-thick Al target,optimization,patient safety,patient tumour tissue,real-time monitoring,secondary emission monitor,thermoionic electrons
AI 理解论文
溯源树
样例
生成溯源树，研究论文发展脉络
Chat Paper
正在生成论文摘要