| 用于诊断纳秒脉冲电流的微分环现场标定技术 |
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| 引用本文： | 姚伟博,张永民,来定国,程亮,任书庆,张玉英,谢霖燊,黄建军,杨莉.用于诊断纳秒脉冲电流的微分环现场标定技术[J].强激光与粒子束,2012,24(2):501-504. |
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| 作者姓名： | 姚伟博 张永民 来定国 程亮 任书庆 张玉英 谢霖燊 黄建军 杨莉 |
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| 作者单位： | 1.西北核技术研究所, 西安 71 0024 |
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| 摘 要： | 分析了用于纳秒脉冲电流测量的微分环标定难点，提出微分环现场标定方法。通过脉冲形成线脉冲充电以解决微分环标定中信噪比较低、可信度较差等问题；分析了脉冲形成线充电时间、充电电压及脉冲形成开关击穿电压等回路参数对标定结果的影响。基于闪光二号加速器，对测量二极管电流的微分环进行了现场标定，前级隔离开关平均击穿电压为25 kV时，微分环标定回路电流达到1.3 kA，微分环灵敏度为9.311010，方差为0.151010。
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| 关 键 词： | 微分环 分布参数 现场标定 信噪比 脉冲形成线 |
| 收稿时间： | 2011/7/19 |
Field calibration method for nanosecond pulse differential ring |
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| Yao Weibo
,
Zhang Yongmin
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Lai Dingguo
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Cheng Liang
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Ren Shuqing
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Zhang Yuying
,
Xie Linshen
,
Huang Jianjun
,
Yang Li.Field calibration method for nanosecond pulse differential ring[J].High Power Laser and Particle Beams,2012,24(2):501-504. |
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| Authors: | Yao Weibo Zhang Yongmin Lai Dingguo Cheng Liang Ren Shuqing Zhang Yuying Xie Linshen Huang Jianjun Yang Li |
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| Affiliation: | 1.Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China |
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| Abstract: | This paper puts forward a field calibration method of differential ring for nanosecond pulse current measurement after analyzing the problems in calibration. To resolve the low signal-to-noise ratio and low reliability issues, the pulse charging principle of pulse forming line is analyzed. The relation between calibration result and charging capacitance, charging inductance, pulse forming line voltage and pulse forming switch breakdown voltage is also analyzed. Field calibration of the differential ring for pulsed electron beam current measurement is conducted on the Flash Ⅱ accelerator. When the average breakdown voltage of the front gap switch is 25 kV, the calibration current is 1.3 kA, the average sensitivity of the differential ring is 9.31×1010 with a deviation of 0.15×1010. |
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| Keywords: | differential ring distributed parameter field calibration signal-to-noise ratio pulse forming line |
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