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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 structured to retard a phase velocity of an RF traveling wave propagated therethrough to match the kinetic velocity of a continuous electron beam simultaneously propagated therethrough. The kicker imposes transverse oscillations onto the beam, which is subsequently 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 exterior surface of the kicker is conductive, thereby avoiding electron charging. In embodiments, various elements of the kicker and/or aperture can be mechanically varied to provide further tuning of the pulsed electron beam. A divergence suppression section can include a mirror TWMCS and/or magnetic quadrupoles. RF can be applied to a down-selecting TWMCS downstream of the aperture to reduce the pulse repetition rate.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Research Org.:
Euclid Techlabs, LLC, Solon, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600432
Patent Number(s):
10515733
Application Number:
16/393,469
Assignee:
Euclid Techlabs, LLC (Solon, OH)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
SC0013121
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/24/2019
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., 2019. 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/1600432.
@article{osti_1600432,
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 structured to retard a phase velocity of an RF traveling wave propagated therethrough to match the kinetic velocity of a continuous electron beam simultaneously propagated therethrough. The kicker imposes transverse oscillations onto the beam, which is subsequently 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 exterior surface of the kicker is conductive, thereby avoiding electron charging. In embodiments, various elements of the kicker and/or aperture can be mechanically varied to provide further tuning of the pulsed electron beam. A divergence suppression section can include a mirror TWMCS and/or magnetic quadrupoles. RF can be applied to a down-selecting TWMCS downstream of the aperture to reduce the pulse repetition rate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

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Works referenced in this record:

Beam blanker for interrupting a beam of charged particles
patent, October 2013


Apparatus for pulsing electron beams
patent, January 1988


Corpuscular beam blanking system
patent, March 1984


Beam pulsing device for use in charged-particle microscopy
patent, June 2015


Production of pulsed electron beams
patent, June 1989