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Dive into the research topics where Jean Clifford Brutus is active.

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Featured researches published by Jean Clifford Brutus.


Review of Scientific Instruments | 2016

Design of a high-bunch-charge 112-MHz superconducting RF photoemission electron source

Tianmu Xin; Jean Clifford Brutus; Sergey Belomestnykh; I. Ben-Zvi; Chase H. Boulware; Terry Grimm; Thomas Hayes; Vladimir N. Litvinenko; K. Mernick; Geetha Narayan; Paul Orfin; I.V. Pinayev; T. Rao; F. Severino; J. Skaritka; K. Smith; R. Than; J. Tuozzolo; E. Wang; Binping Xiao; Huamu Xie; A. Zaltsman

High-bunch-charge photoemission electron-sources operating in a continuous wave (CW) mode are required for many advanced applications of particle accelerators, such as electron coolers for hadron beams, electron-ion colliders, and free-electron lasers. Superconducting RF (SRF) has several advantages over other electron-gun technologies in CW mode as it offers higher acceleration rate and potentially can generate higher bunch charges and average beam currents. A 112 MHz SRF electron photoinjector (gun) was developed at Brookhaven National Laboratory to produce high-brightness and high-bunch-charge bunches for the coherent electron cooling proof-of-principle experiment. The gun utilizes a quarter-wave resonator geometry for assuring beam dynamics and uses high quantum efficiency multi-alkali photocathodes for generating electrons.


7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016 | 2016

Record Performance of SRF Gun with CsK2Sb Photocathode

I.V. Pinayev; Zeynep Altinbas; Sergey Belomestnykh; Ilan Ben-Zvi; Kevin M. Brown; Jean Clifford Brutus; Anthony Curcio; Anthony Di Lieto; Charles Folz; D. Gassner; M. Harvey; Thomas Hayes; R. Hulsart; James Jamilkowski; Yichao Jing; D. Kayran; Robert Kellermann; Robert Lambiase; Vladimir N. Litvinenko; G. Mahler; Michael Mapes; W. Meng; K. Mernick; R. Michnoff; Toby Miller; M. Minty; Geetha Narayan; Paul Orfin; David J. Phillips; T. Rao

High-gradient CW photo-injectors operating at high accelerating gradients promise to revolutionize many sciences and applications. They can establish the basis for super-bright monochromatic X-ray and gamma-ray sources, high luminosity hadron colliders, nuclearwaste transmutation or a new generation of microchip production. In this paper we report on our operation of a superconducting RF electron gun with a record-high accelerating gradient at the CsK2Sb photocathode (i.e. ~ 20 MV/m) generating a record-high bunch charge (i.e., 2 nC). We briefly describe the system and then detail our experimental results. INTRODUCTION The coherent electron cooling experiment (CeC PoP) [1, 2] is expected to demonstrate cooling of a single hadron bunch in RHIC. A superconducting RF gun operating at 112 MHz frequencies generates the electron beam. 500MHz normal conducting cavities provide energy chirp for ballistic compression of the beam. 704-MHz superconducting cavity will accelerate beam to the final energy. The electron beam merges with the hadron beam and after cooling process is steered to a dump. The FEL-like structure enhances the electron-hadron interaction. The electron beam parameters are shown in the Table 1. Table 1: Parameters of the Electron Beam


ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference - CEC | 2014

Cryogenic systems for proof of the principle experiment of coherent electron cooling at RHIC

Yuenian Huang; Sergey Belomestnykh; Jean Clifford Brutus; Dewey Lederle; Paul Orfin; J. Skaritka; Victor Soria; Thomas Tallerico; R. Than

The Coherent electron Cooling (CeC) Proof of Principle (PoP) experiment is proposed to be installed in the Relativistic Heavy Ion Collider (RHIC) to demonstrate proton and ion beam cooling with this new technique that may increase the beam luminosity in certain cases, by as much as tenfold. Within the scope of this project, a 112 MHz, 2MeV Superconducting Radio Frequency (SRF) electron gun and a 704 MHz 20MeV 5-cell SRF cavity will be installed at IP2 in the RHIC ring. The superconducting RF electron gun will be cooled in a liquid helium bath at 4.4 K. The 704 MHz 5-cell SRF cavity will be cooled in a super-fluid helium bath at 2.0 K. This paper discusses the cryogenic systems designed for both cavities. For the 112 MHz cavity cryogenic system, a condenser/boiler heat exchanger is used to isolate the cavity helium bath from pressure pulses and microphonics noise sources. For the 704 MHz 5-cell SRF cavity, a heat exchanger is also used to isolate the SRF cavity helium bath from noise sources in the sub-atmospheric pumping system operating at room temperature. Detailed designs, thermal analyses and discussions for both systems will be presented in this paper.


international free electron laser conference | 2011

Proof-of-principle experiment for FEL-based coherent electron cooling

Vladimir N. Litvinenko; Sergei Belomestnykh; I. Ben-Zvi; Jean Clifford Brutus; A. Fedotov; Y. Hao; D. Kayran; G. Mahler; A. Marusic; W. Meng; G. McIntyre; M. Minty; Vadim Ptitsyn; I.V. Pinayev; T. Rao; T. Roser; B. Sheehy; S. Tepikian; Yatming Than; Dejan Trbojevic; J. Tuozzolo; G. Wang; V. Yakimenko; Mathew Poelker; A. Hutton; Geoffrey Kraft; Robert Rimmer; David L. Bruhwiler; Dan T. Abell; Chet Nieter


5th Int. Particle Accelerator Conf. (IPAC'14), Dresden, Germany, June 15-20, 2014 | 2014

PRESENT STATUS OF COHERENT ELECTRON COOLING PROOF-OF-PRINCIPLE EXPERIMENT

I.V. Pinayev; S. Belomestnykh; I. Ben-Zvi; K.A. Brown; Jean Clifford Brutus; L. DeSanto; A. Elizarov; C.M. Folz; D. Gassner; Y. Hao; R. Hulsart; Yichao Jing; D. Kayran; Robert Lambiase; Vladimir N. Litvinenko; G. Mahler; M. Mapes; W. Meng; R. Michnoff; Toby Miller; M. Minty; Paul Orfin; A. Pendzik; F. Randazzo; T. Rao; T. Roser; J. Sandberg; J. Skaritka; K. Smith; L. Snydstrup


7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016 | 2016

Mechanical Design and 3-D Coupled RF, Thermal-Structural Analysis of Normal Conducting 704 MHz and 2.1 GHz Cavities for LEReC Linac

Jean Clifford Brutus; Sergey Belomestnykh; Ilan Ben-Zvi; Michael Blaskiewicz; Joseph Brennan; A. Fedotov; Manuel Grau; Chien Pai; Louis Snydstrup; J. Tuozzolo; Vadim Veshcherevich; Binping Xiao; Tianmu Xin; Wencan Xu; A. Zaltsman


7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016 | 2016

HOM Consideration of 704 MHz and 2.1 GHz Cavities for LEReC Linac

Binping Xiao; Sergey Belomestnykh; Ilan Ben-Zvi; Michael Blaskiewicz; Joseph Brennan; Jean Clifford Brutus; A. Fedotov; H. Hahn; G. McIntyre; Chien Pai; K. Smith; J. Tuozzolo; Vadim Veshcherevich; Qiong Wu; Tianmu Xin; Wencan Xu; A. Zaltsman


arXiv: Accelerator Physics | 2015

High-gradient High-charge CW Superconducting RF gun with CsK2Sb photocathode

Igor Pinayev; Vladimir N. Litvinenko; J. Tuozzolo; Jean Clifford Brutus; Sergey Belomestnykh; Chase H. Boulware; Charles Folz; D. Gassner; T.L. Grimm; Y. Hao; James Jamilkowski; Yichao Jing; D. Kayran; G. Mahler; Michael Mapes; Toby Miller; Geetha Narayan; B. Sheehy; T. Rao; J. Skaritka; K. Smith; Louis Snydstrup; Yatming Than; Erdong Wang; G. Wang; Binping Xiao; Tianmu Xin; Alexander Zaltsman; Zeynep Altinbas; I. Ben-Zvi


17th International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 | 2015

A GPU based 3D particle tracking code for multipacting simulation

Tianmu Xin; Sergey Belomestnykh; Ilan Ben-Zvi; Jean Clifford Brutus; Vladimir N. Litvinenko; I.V. Pinayev; J. Skaritka; Qiong Wu; Binping Xiao


7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016 | 2016

The ERL-based Design of Electron-Hadron Collider eRHIC

Vadim Ptitsyn; E. C. Aschenauer; S. Belomestnykh; I. Ben-Zvi; J. Scott Berg; Michael Blaskiewicz; Stephen Brooks; Kevin Brown; Jean Clifford Brutus; Oleg Chubar; A. Fedotov; D. Gassner; H. Hahn; Y. Hao; A. Hershcovitch; Haixin Huang; William Jackson; Yichao Jing; Robert Lambiase; Vladimir N. Litvinenko; C. Liu; Yun Luo; G. Mahler; Brian Martin; G. McIntyre; W. Meng; F. Meot; Toby Miller; M. Minty; B. Parker

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J. Tuozzolo

Brookhaven National Laboratory

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Vladimir N. Litvinenko

Brookhaven National Laboratory

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I. Ben-Zvi

Brookhaven National Laboratory

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Binping Xiao

Brookhaven National Laboratory

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J. Skaritka

Brookhaven National Laboratory

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K. Smith

Brookhaven National Laboratory

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R. Than

Brookhaven National Laboratory

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T. Rao

Brookhaven National Laboratory

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