Lau, J.
, , J.
, Jing, C.
, Baryshev, S.
, Reed, B.
and Zhu, Y.
(2015),
GHz Laser-free Time-resolved Transmission Electron Microscopy: a Stroboscopic High-duty-cycle Method, Ultramicroscopy, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919750
(Accessed October 16, 2024)
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GHz Laser-free Time-resolved Transmission Electron Microscopy: a Stroboscopic High-duty-cycle Method
Published
Author(s)
, Jiaqi Qiu, Chunguang Jing, Sergey Baryshev, Bryan W. Reed, Yimei Zhu
Abstract
A device and a method for producing ultrashort electron pulses with GHz repetition rates via pulsing an input direct current (dc) electron beam are provided. The device and the method are based on an electromagnetic-mechanical pulser (EMMP) that consists of a series of transverse deflecting cavities and magnetic quadrupoles. The EMMP modulates and chops the incoming dc electron beam and converts it into pico- and sub-pico-second (100 fs to 10 ps) electron pulse sequences (pulse trains) at >1 GHz repetition rates, as well as controllably manipulates the resulting pulses, and ultimately leads to no electron pulse phase-space degradation compared to the incoming dc beam parameters. The temporal pulse length and repetition rate for the EMMP are both continuously tunable in wide ranges.Citation
Ultramicroscopy
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Created November 10, 2015, Updated March 4, 2020