发明名称 |
OPTICAL WAVEFORM OBSERVING APPARATUS |
摘要 |
Optical waveform observing apparatus including a sampling streak tube to which is applied an incident light beam having a waveform to be observed. An electron beam corresponding to the incident light beam is repetitively deflected in the streak tube, in response to a repetitive deflecting trigger signal, to sample the electron beam. The repetitive deflection of the electron beam is periodically stopped for a first time period. An integration circuit integrates data outputted by the streak tube. A subtraction circuit subtracts the integration of streak tube data outputted during the first time period from the integration of streak tube data outputted during a second time period when the repetitive beam deflection is not stopped, so that background noise and dark currents are not included in the subtraction result. |
申请公布号 |
GB2227831(A) |
申请公布日期 |
1990.08.08 |
申请号 |
GB19880030305 |
申请日期 |
1988.12.28 |
申请人 |
* HAMAMATSU PHOTONICS KABUSHIKI KAISHA |
发明人 |
MUSUBU * KOISHI;ETSUO * TSUJIMURA;MOTOYUKI * WATANABE;YUTAKA * TSUCHIYA |
分类号 |
G01J1/02;G01J11/00;H01J31/50 |
主分类号 |
G01J1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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