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首页> 外文期刊>Plasma and Fusion Research >Calibration of Compact Electron Spectrometer for the FIREX-I Project in Gekko XII
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Calibration of Compact Electron Spectrometer for the FIREX-I Project in Gekko XII

机译：Gekko XII FIREX-I项目紧凑型电子光谱仪的校准

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We have developed a compact electron spectrometer (ESM) to investigate ignition mechanism in the Fast Ignition Realization Experiment project. Hot electrons, produced by the irradiation of a gold target by using a compressed chirped pulse laser, are used for auxiliary heating of the imploded core. An imaging plate is used as the electron detector for medical purposes. However, the relationship between the beam intensity and the detector signal is not clear. The ESM should be calibrated because it is highly compact and has a complex magnetic field for bending caused by installation in a limited space. We have performed the calibration by using an L-band LINAC at the Institute of Scientific and Industrial Research, Osaka University, in order to obtain an accurate electron spectrum. The calibration used a single electron pulse at two different energies, 9.5 MeV and 27.1 MeV, with 0.1-10 pC. The energy spreads are 0.2 MeV at 9.5 MeV and 0.3 MeV at 27.1 MeV. The analyzer has been tested to measure energetic electrons from plain and integrated targets irradiated by the Laser or Fast Ignition Experiment (maximum energy of 10 kJ) up to 800 J.
机译：我们已经开发了一种紧凑型电子光谱仪（ESM），以研究快速点火实现实验项目中的点火机理。通过使用压缩chi脉冲激光辐照金靶产生的热电子可用于辅助加热内陷的磁芯。成像板用作医疗用途的电子检测器。但是，光束强度与检测器信号之间的关系不清楚。由于ESM高度紧凑，并且由于安装在有限的空间内而具有复杂的弯曲磁场，因此应对其进行校准。为了获得准确的电子光谱，我们在大阪大学科学与工业研究所使用L波段LINAC进行了校准。校准使用两个不同能量的单电子脉冲，分别为9.5 MeV和27.1 MeV，能量为0.1-10 pC。能量扩散在9.5 MeV时为0.2 MeV，在27.1 MeV时为0.3 MeV。该分析仪已经过测试，可以测量高达800 J的激光或快速点火实验（最大能量为10 kJ）照射的普通目标和集成目标的高能电子。

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