发明名称 |
HIGH-SPEED MULTI-FRAME DYNAMIC TRANSMISSION ELECTRON MICROSCOPE IMAGE ACQUISITION SYSTEM WITH ARBITRARY TIMING |
摘要 |
An electron microscope is disclosed which has a laser-driven photocathode and an arbitrary waveform generator (AWG) laser system (“laser”). The laser produces a train of temporally-shaped laser pulses each being of a programmable pulse duration, and directs the laser pulses to the laser-driven photocathode to produce a train of electron pulses. An image sensor is used along with a deflector subsystem. The deflector subsystem is arranged downstream of the target but upstream of the image sensor, and has a plurality of plates. A control system having a digital sequencer controls the laser and a plurality of switching components, synchronized with the laser, to independently control excitation of each one of the deflector plates. This allows each electron pulse to be directed to a different portion of the image sensor, as well as to enable programmable pulse durations and programmable inter-pulse spacings. |
申请公布号 |
EP2997591(A1) |
申请公布日期 |
2016.03.23 |
申请号 |
EP20140731528 |
申请日期 |
2014.02.14 |
申请人 |
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC |
发明人 |
REED, BRYAN W.;DEHOPE, WILLIAM J.;HUETE, GLENN;LAGRANGE, THOMAS B.;SHUTTLESWORTH, RICHARD M. |
分类号 |
H01J37/073;H01J37/147;H01J37/15;H01J37/22;H01J37/26;H01J37/28 |
主分类号 |
H01J37/073 |
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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