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Title: Broad band tunable energy electron beam pulser

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.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Research Org.:
Euclid Techlabs, LLC, Solon, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771509
Patent Number(s):
10804001
Application Number:
16/662,434
Assignee:
Euclid Technlabs, LLC (Solon, OH)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
SC0013121
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/24/2019
Country of Publication:
United States
Language:
English

Citation Formats

Jing, Chunguang, Qiu, Jiaqi, Liu, Ao, Montgomery, Eric John, Zhao, Yubin, Rush, Wade, Kostin, Roman, and Kanareykin, Alexei. Broad band tunable energy electron beam pulser. United States: N. p., 2020. Web.
Jing, Chunguang, Qiu, Jiaqi, Liu, Ao, Montgomery, Eric John, Zhao, Yubin, Rush, Wade, Kostin, Roman, & Kanareykin, Alexei. Broad band tunable energy electron beam pulser. United States.
Jing, Chunguang, Qiu, Jiaqi, Liu, Ao, Montgomery, Eric John, Zhao, Yubin, Rush, Wade, Kostin, Roman, and Kanareykin, Alexei. Tue . "Broad band tunable energy electron beam pulser". United States. https://www.osti.gov/servlets/purl/1771509.
@article{osti_1771509,
title = {Broad band tunable energy electron beam pulser},
author = {Jing, Chunguang and Qiu, Jiaqi and Liu, Ao and Montgomery, Eric John and Zhao, Yubin and Rush, Wade and Kostin, Roman and Kanareykin, Alexei},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {10}
}

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