Development and Calibration of Thermal Ion Mass Spectrometerormalsize
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摘要:
热离子质谱分析是空间等离子体探测的核心技术之一.热离子质谱分析仪采用了半球形静电分析器结合基于碳膜的飞行时间系统方案,是目前应用最广泛、最成熟的空间热离子质谱分析技术.热离子质谱分析仪解决了三项关键技术,即5mV高分辨扫描高压,10~20nm超薄碳膜处理以及30kV超高加速电压.分析仪原理样机在瑞士伯尔尼大学完成了定标试验,实现指标参数如下:能量范围为0.499eV~29.94keV,能量分辨率为10.5%;能够实现离子成分H+,He+,O+的分辨;视场范围为360°×8.4°,角度分辨率为22.5°×8.4°.基于热离子质谱分析仪的研制基础,可以进一步开发出更高质谱分辨、更大探测视场以及小型化的等离子体探测载荷.
Abstract:Thermal ion mass discrimination is one of the key techniques for the space plasma detection. In order to measure the energy spectra and composition of space plasma, the Thermal Ion Mass Spectrometer (TIMS) utilizes a hemisphere electrostatic analyzer accompanied with a time of flight unit based on ultra-thin carbon foil. It has been used broadly in space plasma measurement. Three key techniques, such as 5mV high resolution sweeping high voltage, 10~20nm ultra-thin carbon foil treatment, and 30kV acceleration high voltage, have been resolved in the process of TIMS development. The prototype of TIMS has been calibrated by the calibration system in the University of Bern. The calibration results show that the performances of TIMS are as follows. The energy measurement range is from 0.499eV to 29.94keV, and the energy resolution is 10.5%. The field of view is 360°×8.4°, and the angular resolution is 22.5°×8.4°. The main ion species including H+, He+, O+ can be resolved. On the basis of the research work in this study, more advanced plasma instruments with higher mass resolution, larger field of view and more miniature design can be developed.
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Key words:
- Thermal ion /
- Mass spectrometer /
- Electrostatic analyzer /
- Time of flight
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[1] LIU Yong, WANG Chi, XU Jiyao, et al. An introduction to magnetosphere-ionosphere-thermosphere coupling small satellite constellation[J]. Chin. J. Space Sci., 2015, 35 (6):653-663 [2] WUEST M, EVANS D S, VON STEIGER R. Calibration of Particle Instruments in Space Physics[M]. Netherlands:ESA Publications Division, 2007:51 [3] WÜEST M. Time-of-flight ion composition measurement technique for space plasmas[M]//Measurement Techniques in Space Plasmas:Particles. Washington, DC:American Geophysical Union, 1998:141-155 [4] GLOECKLER G. Ion composition measurement techniques for space plasmas[J]. Rev. Sci. Instrum., 1990, 61 (11):3613-3620 [5] MCFADDEN J P, KORTMANN O, CURTIS D, et al. MAVEN supra thermal and thermal ion composition (STATIC) Instrument[J]. Space Sci. Rev., 2015, 195 (1/2/3/4):199-256 [6] GALVIN A B, KISTLER L M, POPECKI M A, et al. The plasma and suprathermal ion composition (PLASTIC) investigation on the STEREO observatories[J]. Space Sci. Rev., 2008, 136 (1/2/3/4):437-486 [7] RÈME H, BOSQUED J M, SAUVAUD J A, et al. The cluster ion spectrometry (CIS) experiment[J]. Space Sci. Rev., 1997, 79 (1/2):303-350 [8] YOUNG D T, BERTHELIER J J, BLANC M, et al. Cassini plasma spectrometer investigation[J]. Space Sci. Rev., 2004, 114 (1/2/3/4):1-112 [9] HOVESTADT D, HILCHENBACH M, BÜRGI A, et al. The charge, element, and isotope analysis system CELIAS on SOHO[M]//Coronal Magnetic Energy Releases. Lecture Notes in Physics. Berlin Heidelberg:Springer,1995 [10] SAITO Y, YOKOTAKA S, ASAMURA Z, et al. In-flight performance and initial results of Plasma energy Angle and Composition Experiment (PACE) on SELENE (Kaguya)[J]. Space Sci. Rev., 2010, 154 (1/2/3/4):265-303 [11] BHARDWAJ A, BARABASH S, SRIDHARAN R, et al. Solar wind monitoring with SWIM-SARA onboard Chandrayaan-1[M]//Magnetic Coupling between the Interior and Atmosphere of the Sun Astrophysics and Space Science Proceedings. Berlin Heidelberg:Springer, 2010:531-532 [12] LI L, WANG S J, ZHANG A B, et al. The plasma experiment of the YH-1 mission[C]//Proceedings of the 7th International Symposium on Instrumentation and Control Technology:Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration. Beijing:SPIE, 2008, 7129:71292P [13] MCCAN D, BARABASH S, NILSSON H, et al. Miniature ion mass analyzer[J]. Planet. Space Sci., 2007, 55 (9):1190-1196 [14] KONG Linggao, ZHANG Aibing, ZHENG Xiangzhi, et al. A satellite-borne miniature ion mass spectrometer for space plasma[J]. Chin. J. Space Sci., 2015, 35 (6):755-762 [15] ALLEGRINI F, WIMMER-SCHWEINGRUBER R F, WURZ P, et al. Determination of low-energy ion-induced electron yields from thin carbon foils[J]. Nucl. Instrum. Meth. Phys. Res.:B, 2003, 211 (4):487-494
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