磁聚焦变像管像转角的数值计算与实验研究
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摘要
建立短磁聚焦变像管测试系统,利用Lorentz 3D-EM软件模拟电子运动成像并计算像转角.在不同阴极电压条件下,采用数值模拟研究变像管像转角的变化规律.结果表明,当成像倍率为1∶1、阴极电压为-3 k V时,模拟像转角为77.09°.实验测量的像转角是71.0°,且随阴极电压绝对值的下降而减小.根据模拟与实验的像转角的差值,估算出实验中采用的短磁聚焦透镜漏磁电流安匝数为45.0 A·个.
The test system of short magnetic focusing image tube is established. The electronic motion imaging is simulated and the electron-image rotation angle is calculated with the software 3D-EM Lorentz. Under different cathode voltage conditions,the variation of the image rotation angle is simulated and studied. When the image magnification is 1∶1 and the cathode voltage is-3 k V,the calculation result for rotation angle of the image is77. 09°. The actual measurement of the image angle is 71. 0° and it decreases with the fall of the absolute value of the cathode voltage. According to the difference between experimental and simulated angles,the loss of ampere-turns of this system is estimated to be 45. 0 ampere-turns.
The test system of short magnetic focusing image tube is established. The electronic motion imaging is simulated and the electron-image rotation angle is calculated with the software 3D-EM Lorentz. Under different cathode voltage conditions,the variation of the image rotation angle is simulated and studied. When the image magnification is 1∶1 and the cathode voltage is-3 k V,the calculation result for rotation angle of the image is77. 09°. The actual measurement of the image angle is 71. 0° and it decreases with the fall of the absolute value of the cathode voltage. According to the difference between experimental and simulated angles,the loss of ampere-turns of this system is estimated to be 45. 0 ampere-turns.
引文
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[16]白雁力,龙井华,蔡厚智,等.短磁聚焦分幅变像管空间分辨率的模拟与测试[J].深圳大学学报理工版,2015,32(2):178-182.Bai Yanli,Long Jinghua,Cai Houzhi,et al.Simulated and measured spatial resolution of framing converter using short magnetic focusing[J].Journal of Shenzhen University Science and Engineering,2015,32(2):178-182.(in Chinese)
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[2]蔡厚智,刘进元,彭翔,等.X射线皮秒分幅相机的研制[J].深圳大学学报理工版,2012,29(2):123-128.Cai Houzhi,Liu Jinyuan,Peng Xiang,et al.Investigation of picosecond X-ray framing camera[J].Journal of Shenzhen University Science and Engineering,2012,29(2):123-128.(in Chinese)
[3]谭显祥,韩立石.高速摄影技术[M].北京:原子能出版社,1990.Tan Xianxiang,Han Lishi.High speed photography technology[M].Beijing:Atomic Energy Press,1990.(in Chinese)
[4]蔡厚智,龙井华,刘进元,等.大面积MCP选通X射线分幅相机的研制[J].深圳大学学报理工版,2013,30(1):30-34.Cai Houzhi,Long Jinghua,Liu Jinyuan,et al.Investigation of large-format microchannel plate X-ray framing camera[J].Journal of Shenzhen University Science and Engineering,2013,30(1):30-34.(in Chinese)
[5]Hilsabeck T J,Hares J D,Kilkenny J D,et al.Pulsedilation enhanced gated optical imager with 5 ps resolution(invited)[J].Review of Scientific Instruments,2010,81(10):10E317.
[6]Nagel S R,Hilsabeck T J,Bell P M,et al.Dilation X-ray imager a new/faster gated X-ray imager for the NIF[J].Review of Scientific Instruments,2012,83(10):10E116.
[7]Nagel S R,Hilsabeck T J,Bell P M,et al.Investigating high speed phenomena in laser plasma interactions using dilation X-ray imager(invited)[J].Review of Scientific Instruments,2014,85(11):11E504.
[8]雷云飞,龙井华,刘进元,等.大探测面积分幅变像管设计[J].中国激光,2016,43(9):171-178.Lei Yunfei,Long Jinghua,Liu Jinyuan,et al.Design of framing image tube with large detection area[J].Chinese Journal of Lasers,2016,43(9):171-178.(in Chinese)
[9]白雁力,龙井华,蔡厚智,等.时间展宽分幅变像管的时间分辨率探究[J].红外与激光工程,2015,44(S):63-67.Bai Yanli,Long Jinghua,Cai Houzhi,et al.[J].Infrared and Laser Engineering,2015,44(S):63-67.(in Chinese)
[10]蔡厚智,刘进元,彭翔,等.宽微带X射线分幅相机的研制[J].中国激光,2012,39(1):241-247.Cai Houzhi,Liu Jinyuan,Peng Xiang,et al.Design of an X-ray framing camera with wide microstrip line[J].Chinese Journal of Lasers,2012,39(1):241-247.(in Chinese)
[11]廖昱博,龙井华,蔡厚智,等.磁聚焦分幅变像管静态空间分辨率的Matlab模拟研究[J].激光与光电子学进展,2016,53(1):202-206.Liao Yubo,Long Jinghua,Cai Houzhi,et al.Numerically simulated static spatial resolution of framing image converter using magnetic focusing via Matlab[J].Laser&Optoelectronics Progress,2016,53(1):202-206.(in Chinese)
[12]刘蓉,田进寿,王强强,等.磁透镜内径比对条纹变像管性能的影响[J].真空科学与技术学报,2014,34(10):1066-1070.Liu Rong,Tian Jinshou,Wang Qiangqiang,et al.Influence of magnetic solenoid lens on characteristics of streak image tube[J].Chinese Journal of Vacuum Science and Technology,2014,34(10):1066-1070.(in Chinese)
[13]Cai Houzhi,Liu Jinyuan,Peng Xiang,et al.Note:nongain microchannel plate gated framing camera[J].Review of Scientific Instruments,2011,82(5):056102.
[14]Cai Houzhi,Zhao Xin,Liu Jinyuan,et al.Dilation framing camera with 4 ps resolution[J].APL Photonics,2016,1(1):343-348.
[15]蔡厚智,龙井华,刘进元,等.无增益微通道板皮秒分幅技术研究[J].红外与激光工程,2015,12(S):109-112.Cai Houzhi,Long Jinghua,Liu Jinyuan,et al.Non-gain microchannel plate picosecond framing technology[J].Infrared and Laser Engineering,2015,12(S):109-112.(in Chinese)
[16]白雁力,龙井华,蔡厚智,等.短磁聚焦分幅变像管空间分辨率的模拟与测试[J].深圳大学学报理工版,2015,32(2):178-182.Bai Yanli,Long Jinghua,Cai Houzhi,et al.Simulated and measured spatial resolution of framing converter using short magnetic focusing[J].Journal of Shenzhen University Science and Engineering,2015,32(2):178-182.(in Chinese)
[17]杜秉初,汪健如.电子光学[M].北京:清华大学出版社,2002:91.Du Bingchu,Wang Jianru.Electron optics[M].Beijing:Tsinghua University Press,2002:91.(in Chinese)