Eric G Montgomery

US Patent:

20200343013, Oct 29, 2020

Filed:

Oct 24, 2019

Appl. No.:

16/662434

Inventors:

- Solon OH, US
Jiaqi Qiu - ShaoXing, CN
Ao Liu - Naperville IL, US
Eric John Montgomery - Oak Park IL, US
Yubin Zhao - Naperville IL, US
Wade Rush - Lawrence KS, US
Roman Kostin - Oak Park IL, US
Alexei Kanareykin - Bethesda MD, US

Assignee:

Euclid Techlabs, LLC - Solon OH

International Classification:

G21K 1/04
H01J 37/26

Abstract:

An electromagnetic mechanical pulser implements a transverse wave metallic comb stripline TWMCS kicker having inwardly opposing teeth that retards a phase velocity of an RF traveling wave to match the kinetic velocity of a continuous electron beam, causing the beam to oscillate before being chopped into pulses by an aperture. The RF phase velocity is substantially independent of RF frequency and amplitude, thereby enabling independent tuning of the electron pulse widths and repetition rate. The TWMCS further comprises an electron pulse picker (EPP) that applies a pulsed transverse electric field across the TWMCS to deflect electrons out of the beam, allowing only selected electrons and/or groups of electrons to pass through. The EPP pulses can be synchronized with the RF traveling wave and/or with a pumping trigger of a transverse electron microscope (TEM), for example to obtain dynamic TEM images in real time.