2018 IEEE Advanced Accelerator

Concepts Workshop (AAC 2018)

Breckenridge, Colorado, USA

12 – 17 August 2018

IEEE Catalog Number: CFP18B65-POD ISBN: 978-1-5386-7722-3

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IEEE Catalog Number: CFP18B65-POD ISBN (Print-On-Demand): 978-1-5386-7722-3 ISBN (Online): 978-1-5386-7721-6

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TABLE OF CONTENTS

SUMMARY OF WORKING GROUP 1: - WAKEFIELD ACCELERATION ...... 1 Cameron G. R. Geddes ; Jessica L. Shaw

SUMMARY OF WORKING GROUP 2: COMPUTATIONS FOR ACCELERATOR PHYSICS...... 6 Remi Lehe ; Weiming An

SUMMARY OF WORKING GROUP 3: LASER AND HIGH-GRADIENT STRUCTURE-BASED ACCELERATION...... 10 P. Musumeci ; A. Grassellino

SUMMARY OF WORKING GROUP 4: BEAM-DRIVEN ACCELERATION ...... 15 Brendan D. O'Shea ; Navid Vafaei-Najafabadi

SUMMARY OF WORKING GROUP 5: BEAM SOURCES, MONITORING, AND CONTROL ...... 20 Nathan Moody ; Roxana Tarkeshian

SUMMARY OF WORKING GROUP 6: LASER-PLASMA ACCELERATION OF IONS...... 24 Yu-Hsin Chen ; Sven Steinke

SUMMARY OF WORKING GROUP 7: RADIATION GENERATION AND ADVANCED CONCEPTS ...... 28 Nikolai Yamnolsky ; Nuno Lemos

SUMMARY OF WORKING GROUP 8: ADVANCED LASER AND BEAM TECHNOLOGY AND FACILITIES ...... 33 Jay W. Dawson ; Mikhail N. Polyanskiy

OBSERVATION OF HIGH TRANSFORMER RATIO FROM BUNCH SHAPING USING EMITTANCE EXCHANGE...... 38 Gwanghui Ha ; Qiang Gao ; Eric Wisniewski ; John Power ; Jiahang Shao ; Manoel Conde ; Wanming Liu ; Alexander Zholents ; Chunguang Jing ; Ryan Roussel

INF&RNO MODELING OF 10 GEV-CLASS BEAMS FROM A LASER-PLASMA ACCELERATOR DRIVEN BY THE BELLA LASER ...... 43 Carlo Benedetti ; Carl Schroeder ; Timon Mehrling ; Blagoje Djordjevic ; Stepan Bulanov ; Cameron Geddes ; Eric Esarey ; Wim Leemans

LOW DENSITY PLASMA WAVEGUIDES DRIVEN BY ULTRASHORT (30 FS) AND LONG (300 PS) PULSES FOR LASER WAKEFIELD ACCELERATION...... 48 Isabella Pagano ; Jason Brooks ; Aaron Bernstein ; Rafal Zgadzaj ; Jarrod Leddy ; John Cary ; Michael C. Downer

TRANSVERSE WAKEFIELD CONTROL VIA PHASE-MATCHED LASER MODES IN PLASMA CHANNELS...... 53 Blagoje Z. Djordjevic ; Carlo Benedetti ; Carl B. Schroeder ; Eric Esarey ; Wim P. Leemans

PLANAR LASER-INDUCED FLUORESCENCE DEVELOPED FOR LASER PLASMA ACCELERATOR TARGETS ...... 58 Liona Fan-Chiang ; Hann-Shin Mao ; Wim P. Leemans

CHARACTERISTICS OF HIGH ELECTRON BEAM GENERATION AND DOSE DISTRIBUTION IN LASER WAKEFIELD ACCELERATOR FOR CANCER TREATMENT ...... 62 Kyung Nam Kim ; Yonghun Hwangbo ; Seok-Gy Jeon ; Jaehoon Kim

DENSITY-CUSTOMIZED CAPILLARY (DC2) DISCHARGE ...... 67 W. D. Kimura ; D. S. Dhillon

A SUBGRID ALGORITHM FOR THE EFFICIENT MODELING OF PLASMA-BASED ACCELERATORS WITH ION MOTION USING QUASI-STATIC PARTICLE-IN-CELL CODES...... 72 T. J. Mehrling ; C. Benedetti ; C. B. Schroeder ; E. Esarey

INVESTIGATING INSTABILITIES OF LONG, INTENSE LASER PULSES IN PLASMA WAKEFIELD ACCELERATORS ...... 77 Jiayang Yan ; Pietro Iapozzuto ; Mael Flament ; Chan Joshi ; Yichao Jing ; Prabhat Kumar ; Roman Samulvak ; Igor Pogorelsky ; Christina Swinson ; Marcus Babzien ; Karl Kusche ; Mikhail Polyanskiy ; Mikhail Fedurin ; Mark Palmer ; Warren B. Mori ; Rafal Zgadzaj ; James Welch ; Michael Downer ; Wei Lu ; Vladimir Litvinenko ; Navid Vafaei-Najafabadi ; Ligia Diana Amorim

MULTI-STREAM INSTABILITY IN UMER...... 82 Brian Beaudoin ; Irv Haber ; Rami Kishek ; Thomas Antonsen

IMPLEMENTING TRADITIONAL LONGITUDINAL BEAM FOCUSING IN UMER...... 84 Kathleen Hamilton ; Levon Dovlatvan ; David Matthew ; David Sutter ; Santiago Bernal ; Thomas Antonsen ; Brian Beaudoin

COMPARISON OF CONSERVATION BEHAVIOR IN SEVERAL VARIATIONALLY DERIVED IMPLEMENTATIONS FOR SIMULATING ELECTROMAGNETIC PLASMAS ...... 88 Alexander B. Stamm ; B. A. Shadwick

TOWARD PLASMA WAKEFIELD SIMULATIONS AT EXASCALE ...... 93 J.-L. Vay ; A. Almgren ; J. Bell ; R. Lehe ; A. Myers ; J. Park ; O. Shapoval ; M. Thévenet ; W. Zhang ; D. P. Grote ; M. Hogan ; L. Ge ; C. Ng

AII OPTICAL CONTROL OF BEAM DYNAMICS IN A DLA ...... 98 David Cesar ; Pietro Musumeci ; Joel England

INTENSITY LIMITS BY WAKEFIELDS IN RELATIVISTIC DIELECTRIC LASER ACCELERATION GRATING STRUCTURES ...... 103 Thilo Egenolf ; Uwe Niedermayer ; Oliver Boine-Frankenheim

A SIMPLE VARIABLE FOCUS LENS FOR FIELD-EMITTER CATHODES...... 108 Ryan L. Fleming ; Heather L. Andrews ; Kip A. Bishofberger ; Dongsung Kim ; John L. Lewellen ; Kimberley Nichols ; Dmitry Yu. Shchegolkov ; Evgenya I. Simakov

BIMODAL ELECTRON GUN R&D...... 113 Yong Jiang ; Lin Wang ; Sergey V. Shchelkunov ; Wencheng Fang ; Jay L. Hirshfield

CO2-LASER-DRIVEN2 DIELECTRIC LASER ACCELERATOR...... 118 W. D. Kimura ; I. V. Poaorelsky ; L. Schächter

PLANS FOR DIELECTRIC LASER ACCELERATORS AT SINBAD ...... 123 Willi Kuropka ; Ralph Abmann ; Florian Burkart ; Huseyin Cankaya ; Ulrich Dorda ; Ingmar Hartl ; Franz X. Kärtner ; Francois Lemery ; Barbara Marchetti ; Frank Mayet

QUASI-OPTICAL THZ ACCELERATING STRUCTURES...... 127 Sergey Kuzikov ; Sergey Antipov ; Alexander Vikharev ; Yury Danilov ; Edgar Gomez

DIELECTRIC DISK ACCELERATOR FOR HIGH GRADIENT SHORT PULSE TWO-BEAM WAKEFIELD ACCELERATION...... 132 Chunguang Jing ; Jiahang Shao ; John Power ; Manoel Conde ; Scott Doran

50KW CW HIGHLY-EFFICIENT MULTI-BEAM KLYSTRON AT 952 MHZ FOR A FUTURE ELECTRON-ION COLLIDER...... 137 Vladimir E. Teryaev ; Yong Jiang ; Sergey V. Shchelkunov ; Jay L. Hirshfield

O-MBK WITH PARTIALLY GROUNDED DEPRESSED COLLECTOR ...... 142 Yong Jiang ; Sergey V. Shchelkunov ; Vladimir E. Teryaev ; Jay L. Hirshfield

HIGH-DIELECTRIC 3-D PRINTABLE MATERIALS FOR LASER ACCELERATORS ...... 147 Ethan M. Walker ; Robert D. Gilbertson ; Evgenya I. Simakov ; Ghanshyam Pilania ; Ross E. Muenchausen

NEAR-RELATIVISTIC ELECTRON BEAM PRODUCTION USING A PYROELECTRIC CRYSTAL ARRAY...... 152 Rodney Yoder ; Zumrad Kabilova ; Benjamin Saeks ; Jonathan Jefferson ; Daniel Lerner

NARROW “INCEPTION” BEAMS GENERATED IN FACET BEAM-DRIVEN WAKEFIELD ACCELERATOR SETUPS ...... 156 Ligia Diana Amorim ; Navid Vafaei-Najafabadi

NOVEL FAST SIMULATION TECHNIQUE FOR AXISYMMETRIC PLASMA WAKEFIELD ACCELERATION CONFIGURATIONS IN THE BLOWOUT REGIME...... 161 Panagiotis Baxevanis ; Gennady Stupakov

GENERATION AND ACCELERATION OF THE TRAILING BUNCH USING A DRIVE- TRAILING ELECTRON BUNCH CONFIGURATION...... 166 Hiroki Fujii ; Weiming An ; Kenneth A. Marsh ; Warren B. Mori ; Chandrashekhar J. Joshi

MITIGATION TECHNIQUES FOR WITNESS BEAM HOSING IN PLASMA - BASED ACCELERATION...... 171 L. Hildebrand ; W. An ; X. L. Xu ; F. Li ; Y. Zhao ; M. J. Hogan ; V. Yakimenko ; S. S. Nagaitsev ; E. Adli ; C. Joshi ; W. B. Mori

DETUNED-STRUCTURE-BASED BEAM-DRIVEN ACCELERATOR...... 176 Yong Jiang ; Xiangyun Chang ; Sergey V. Shchelkunov ; Lin Wang ; Jay L. Hirshfield

THE DIELECTRIC RESONATOR WAKEFIELD ACCELERATOR ...... 181 Gennadij V. Sotnikov ; Thomas C. Marshall ; Sergey V. Shchelkunov ; Jay L. Hirshfield

HIGH-EFFICIENCY 2 MEV BEAM-DRIVEN ACCELERATOR...... 186 Vladimir E. Teryaev ; Sergey V. Shchelkunov ; Jay L. Hirshfield

LONGITUDINAL BEAM-SHAPING SIMULATION FOR ENHANCED TRANSFORMER RATIO IN BEAM-DRIVEN ACCELERATORS...... 190 Wei-Hou Tan ; Philippe Piot ; Alexander Zholents

EXTERNAL ELECTRON INJECTION FOR THE AWAKE EXPERIMENT ...... 195 Marlene Turner ; Chiara Bracco ; Spencer Gessner ; Brennan Goddard ; Edda Gschwendtner ; Patrie Muggli ; Felipe Pefia Asmus ; Francesco Velotti ; Livio Verra

OPTIMIZED ELECTRON BUNCH CURRENT DISTRIBUTION FROM A RADIOFREQUENCY PHOTO-EMISSION SOURCE ...... 199 Tianzhe Xu ; Chunguang Jing ; Alexei Kanareykin ; Philippe Piot ; John Power

HEAD AND TAIL COMPRESSION OF AN ELECTRON BEAM...... 204 Brian Beaudoin ; Irv Haber ; Rami Kishek ; Thomas Antonsen

BEAMLINE DESIGN FOR PLASMA-WAKEFIELD ACCELERATION EXPERIMENTS AT MAX IV ...... 207 Jonas Björklund Svensson ; Henrik Ekerfelt ; Olle Lundh ; Erik Mansten ; Joel Andersson ; Marija Kotur ; Filip Lindau ; Sara Thorin ; Tessa K. Charles

COMPACT HIGH-RESOLUTION MULTI-GEV ELECTRON SPECTROMETER FOR PW- LASER-DRIVEN PLASMA ACCELERATORS AND APPROXIMATE TRAJECTORY METHOD FOR SPECTRUM ANALYSIS ...... 211 Xiantao Cheng ; Rafal Zgadzaj ; Aaron Bernstein ; Max Laberge ; Joseph M. Shaw ; Michael C. Downer

POSITRON PRODUCTION TARGET WITH RASTER BEAM...... 216 Yong Jiang ; Sergey V. Shchelkunov ; Jay L. Hirshfield

FABRICATION OF MICRON-SCALE DIAMOND FIELD EMITTER ARRAYS FOR DIELECTRIC LASER ACCELERATORS...... 220 Dongsung Kim ; Heather L. Andrews ; Bo K. Choi ; Evgenya I. Simakov

STUDY OF THE BEAM DIVERGENCE IN DIAMOND FIELD EMITTER ARRAY CATHODES...... 223 Dongsung Kim ; Heather L. Andrews ; Ryan L. Fleming ; John L. Lewellen ; Kimberley Nichols ; Vitaly Pavlenko ; Dmitry Yu. Shchegolkov ; Evgenya I. Simakov

ELECTRON BEAM GUIDING WITH A LASER BESSEL BEAM ...... 227 Levi Schächter ; Wayne D. Kimura

DESIGN OF THE LOW-ENERGY DC GUN FOR FIELD-EMISSION CATHODE INVESTIGATION...... 232 Anusorn Lueangaramwong ; Osama Mohsen ; Philippe Piot

OBSERVATIONS OF COHERENT OPTICAL TRANSITION RADIATION INTERFERENCE FRINGES GENERATED BY LASER PLASMA ACCELERATOR ELECTRON BEAMLETS ...... 236 Alex Lumpkin ; Maxwell Laberge ; Donald Rule ; Rafal Zgadzaj ; Andrea Hannasch ; Michael Downer ; Omid Zarini ; Brant Bowers ; Arie Irman ; Jurjen Couperus ; Alexander Debus ; Alexander Kohler ; Ulrich Schramm

CHARACTERIZATION OF THE NONLINEAR FOCUSING MAGNET FOR QUASI - INTEGRABLE OPTICS EXPERIMENTS AT THE UNIVERSITY OF MARYLAND ELECTRON RING...... 241 David Matthew ; William Curtiss ; Heidi Baumgartner Komkov ; Brian Beaudoin

FIELD EMISSION FROM SILICON NANOCONES CATHODES ...... 245 Osama Mohsen ; Anusorn Lueangaramwong ; Srujana Valluri ; Venumadhav Korampally ; Philippe Piot ;

FIELD ASSISTED PHOTOEMISSION FROM NANOCRYSTALLINE DIAMOND AND DIAMOND FIELD EMITTER ARRAYS...... 250 Vitaly Pavlenko ; Heather L. Andrews ; Robert J. Aragonez ; Ryan L. Fleming ; Chengkun Huang ; Dongsung Kim ; Thomas J. T. Kwan ; Andrei Piryatinski ; Evgenya I. Simakov

LASER-PLASMA - ACCELERATOR-DRIVEN QUASI - MONOENERGETIC MEV THOMSON PHOTON SOURCE AND LASER FACILITY ...... 253 H.-E. Tsai ; C. G. R. Geddes ; T. Ostermavr ; G. O. Muñoz ; J. Van Tilborg ; S. K. Barber ; F. Isono ; H.-S. Mao ; K. K. Swanson ; R. Lehe ; A. J. Gonsalves ; K. Nakamura ; Cs. Toth ; C. B. Schroeder ; E. Esarey ; W. P. Leemans

ADVANCED METHODS FOR TEMPORAL RECONSTRUCTION OF MODULATED ELECTRON BUNCHES...... 258 Omid Zarini ; Alexander Köhler ; Jurjen Couperus ; Richard Pausch ; Thomas Kurz ; Susanne Schöbel ; Heide Meißner ; Michael Bussmann ; Ulrich Schramm ; Arie Irman ; Alexander Debus

HIGH ENERGY DENSITY ION BEAM FROM A FOCUSING SHAPED TARGET IN THE RADIATION PRESSURE REGIME...... 263 Tianhong Wang ; Vladimir Khudik ; Gennady Shvets

OPTIMIZATION OF THE COMPACT GAMMA-RAY SOURCE BASED ON INVERSE COMPTON SCATTERING DESIGN ...... 268 Han Chen ; Yingchao Du ; Lixin Yan ; Jiaru Shi ; Wenhui Huang ; Chuanxiang Tang

GENERATION OF COHERENT MONOCHROMATIC RADIATION BY LASER- TRIGGERED IONIZATION INJECTION IN PLASMA ACCELERATORS ...... 273 Bo Guo ; Xinlu Xu ; Jianfei Hua ; Yipeng Wu ; Chih-Hao Pai ; Wei Lu

GENERATION OF BROADBAND THZ PULSES BY LASER WAKEFIELD AT RADIAL BOUNDARY OF PLASMA COLUMN...... 277 Serge Kalmykov ; Alexander Englesbe ; Jennifer Elle ; Andreas Schmitt-Sody

FREE ELECTRON BASED ON MULTI-STAGE TAPERED RF WIGGLERS...... 282 Sergey Kuzikov ; Sergey Antipov ; Alexander Vikharev ; Andrey Savilov ; Edgar Gomez

SPECTRAL ANALYSIS OF 50–100 MEV THOMSON BACKSCATTER GAMMA-RAYS FROM GEV LASER-PLASMA ACCELERATOR ...... 287 Luc Lisi ; Joseph Shaw ; Ganesh Tiwari ; Andrea Hannasch ; Aaron Bernstein ; Lance Labun ; Bjorn Hegelich ; Michael Downer

EXPERIMENTAL OPPORTUNITIES FOR THE ION CHANNEL LASER...... 291 Micha Litos ; Robert Ariniello ; Christopher Doss ; Keenan Hunt-Stone ; John R. Cary

PREPARATION FOR AN EMITTANCE EXCHANGE BASED BUNCH COMPRESSION EXPERIMENT AT ARGONNE WAKEFIELD ACCELERATOR FACILITY...... 296 Jimin Seok ; Gwanghui Ha ; John Gorham Power ; Manoel Conde ; Moses Chung

COMPRESSION OF TERAWATT LONG-WAVELENGTH LASER PULSES THROUGH BACKWARD RAMAN AMPLIFICATION...... 301 Yu-Hsin Chen ; Luke Johnson ; Daniel Gordon ; Dmitri Kaganovich ; Bahman Hafizi ; Marcus Babzien ; Mikhail Polyanskiy ; Igor Pogorelsky ; Mark Palmer

GENERATING QUASI-SINGLE MULTI - TERAWATT PICOSECOND PULSES IN THE NEPTUNE CO2 LASER SYSTEM ...... 305 Eric Welch ; Daniel Matteo ; Sergei Tochitsky ; Chan Joshi

Author Index