LINAC2016 - List of Authors (Ao, H.)

Paper	Title	Page
MO1A01	The FRIB Superconducting Linac - Status and Plans	1
	J. Wei, H. Ao, S. Beher, N.K. Bultman, F. Casagrande, C. Compton, L.R. Dalesio, K.D. Davidson, A. Facco, F. Feyzi, V. Ganni, A. Ganshyn, P.E. Gibson, T. Glasmacher, W. Hartung, L. Hodges, L.T. Hoff, H.-C. Hseuh, A. Hussain, M. Ikegami, S. Jones, K. Kranz, R.E. Laxdal, S.M. Lidia, G. Machicoane, F. Marti, S.J. Miller, D.G. Morris, A.C. Morton, J.A. Nolen, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, G. Pozdeyev, T. Russo, K. Saito, G. Shen, S. Stanley, H. Tatsumoto, T. Xu, Y. Yamazaki FRIB, East Lansing, USA K. Dixon, M. Wiseman JLab, Newport News, Virginia, USA A. Facco INFN/LNL, Legnaro (PD), Italy K. Hosoyama KEK, Ibaraki, Japan H.-C. Hseuh BNL, Upton, Long Island, New York, USA M.P. Kelly, J.A. Nolen ANL, Argonne, Illinois, USA R.E. Laxdal TRIUMF, Vancouver, Canada
	With an average beam power two orders of magnitude higher than operating heavy-ion facilities, the Facility for Rare Isotope Beams (FRIB) stands at the power frontier of the accelerator family. This report summarizes the current design and construction status as well as plans for commissioning, operations and upgrades. Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 and the National Science Foundation under Cooperative Agreement PHY-1102511.
	Slides MO1A01 [48.813 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-MO1A01
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MOPLR063	Development of H⁰ Beam Diagnostic Line in MEBT2 of J-PARC Linac	277
	J. Tamura, A. Miura, T. Morishita JAEA/J-PARC, Tokai-mura, Japan H. Ao FRIB, East Lansing, USA T. Maruta J-PARC, KEK & JAEA, Ibaraki-ken, Japan T. Miyao KEK, Ibaraki, Japan
	In the Japan Proton Accelerator Research Complex (J-PARC) linac, H⁰ particles arising from collisions of accelerated H⁻ beams with residual gas are considered as one of the key factors of the residual radiation in the high energy accelerating section. To analyze the H⁰ and the accelerated H⁻ particles, the bump magnet system was designed and produced. The H⁰ beam diagnostic line consists of four horizontal bending magnets, non-destructive beam position monitor and wire scan beam profile monitor. In the 2015 summer maintenance period of the J-PARC, the new diagnostic line was constructed in the beam transport (MEBT2), which is the matching section from separated-type drift tube linac (SDTL) to annular-ring coupled structure linac (ACS). In the beam commissioning, we experimentally confirmed that the accelerated 190 MeV H⁻ beams are horizontally shifted as expected with the magnetostatic field simulation and the particle tracking simulation.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-MOPLR063
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TUPLR067	Solenoid/Magnetic Shielding Test Results in FRIB-1&2 Cryomodules	607
SPWR006	use link to see paper's listing under its alternate paper code
	D. Luo, H. Ao, E.E. Burkhardt, J. Casteel, A. Ganshyn, W. Hartung, M.J. Holcomb, J.T. Popielarski, K. Saito, S. Shanab, E. Supangco, M. Thrush FRIB, East Lansing, Michigan, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661, the State of Michigan and Michigan State University. Recently we did bunker tests for FRIB first cryomodule (CM-1) and second one (CM-2) which houses 0.085 QWRs and solenoid packages. Their performances were successfully validated in the full configuration. This paper reports the solenoid package tests results.
	Poster TUPLR067 [4.899 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-TUPLR067
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WE2A02	FRIB Cryomodule Design and Production	673
	T. Xu, H. Ao, B. Bird, N.K. Bultman, E.E. Burkhardt, F. Casagrande, C. Compton, J.L. Crisp, K.D. Davidson, K. Elliott, A. Facco, V. Ganni, A. Ganshyn, W. Hartung, M. Ikegami, P. Knudsen, S.M. Lidia, I.M. Malloch, S.J. Miller, D.G. Morris, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, S. Shanab, G. Shen, M. Shuptar, S. Stark, J. Wei, J.D. Wenstrom, M. Xu, Y. Xu, Y. Yamazaki, Z. Zheng FRIB, East Lansing, USA A. Facco INFN/LNL, Legnaro (PD), Italy K. Hosoyama KEK, Ibaraki, Japan M.P. Kelly ANL, Argonne, Illinois, USA R.E. Laxdal TRIUMF, Vancouver, Canada M. Wiseman JLab, Newport News, Virginia, USA
	Funding: U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 The Facility for Rare Isotope Beams (FRIB), under con-struction at Michigan State University, will utilize a driver linac to accelerate stable ion beams from protons to ura-nium up to energies of >200 MeV per nucleon with a beam power of up to 400 kW. Superconducting technology is widely used in the FRIB project, including the ion sources, linac, and experiment facilities. The FRIB linac consists of 48 cryomodules containing a total of 332 superconducting radio-frequency (SRF) resonators and 69 superconducting solenoids. We report on the design and the construction of FRIB cryomodules.
	Slides WE2A02 [3.823 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE2A02
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THPRC013	Design of a FRIB Half-Wave Pre-Production Cryomodule	795
	S.J. Miller, H. Ao, B. Bird, G.D. Bryant, B. Bullock, N.K. Bultman, F. Casagrande, C. Compton, A. Facco, W. Hartung, J.D. Hulbert, D.G. Morris, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, M. Shuptar, J. Simon, S. Stark, B.P. Tousignant, J. Wei, J.D. Wenstrom, K. Witgen, T. Xu, Z. Zheng FRIB, East Lansing, USA A. Facco INFN/LNL, Legnaro (PD), Italy M.P. Kelly ANL, Argonne, Illinois, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661. The driver linac for the Facility for Rare Isotope Beams (FRIB) will require the production of 48 cryomodules (CMs). In addition to the β=0.085 quarter-wave CM, FRIB has completed the design of a β=0.53 half-wave CM as a pre-production prototype. This CM will qualify the performance of the resonators, fundamental power couplers, tuners, and cryogenic systems of the β=0.53 half-wave design. In addition to the successful systems qualification; the β=0.53 CM build will also verify the FRIB bottom up assembly and alignment method on a half-wave CM type. The lessons learned from the β=0.085 pre-production CM build including valuable fabrication, sourcing, and assembly experience have been applied to the design of β=0.53 half-wave CM. This paper will report the design of the β=0.53 half-wave CM as well as the CM interfaces within the linac tunnel.
	Poster THPRC013 [0.954 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC013
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THPRC021	Status of β=0.53 Pre-Production Cryomodule	811
	H. Ao, B. Bird, G.D. Bryant, B. Bullock, N.K. Bultman, C. Compton, A. Facco, J.D. Hulbert, S.J. Miller, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, M. Shuptar, J. Simon, S. Stark, B.P. Tousignant, J.D. Wenstrom, K. Witgen, T. Xu, Z. Zheng FRIB, East Lansing, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661. The driver linac for the Facility for Rare Isotope Beams (FRIB) comprises four kinds of cavities (=0.041, 0.085, 0.29, and 0.53) and six types of cryomodules including matching modules. FRIB has started the fabrication of a β=0.53 preproduction cryomodule, which is the first prototype for a half-wave (=0.29 and 0.53) cavity. This paper describes the fabrication progress and the lessons learned from the β=0.53 preproduction cryomodule.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPRC024	Polarity Check of the FRIB Cryomodule Solenoids by Measuring Leakage Magnetic Field	821
	H. Ao, D. Luo, F. Marti, K. Saito, S. Shanab FRIB, East Lansing, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661. We observed the outside magnetic field of the first β=0.085 production cryomodule while a solenoid and steering dipoles are under operation. This measurement aims to check the polarity on these magnets after the final installation in the accelerating tunnel. This paper also shows the residual magnetic field variation through the degaussing process of these magnets.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC024
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The FRIB Superconducting Linac - Status and Plans

1

J. Wei, H. Ao, S. Beher, N.K. Bultman, F. Casagrande, C. Compton, L.R. Dalesio, K.D. Davidson, A. Facco, F. Feyzi, V. Ganni, A. Ganshyn, P.E. Gibson, T. Glasmacher, W. Hartung, L. Hodges, L.T. Hoff, H.-C. Hseuh, A. Hussain, M. Ikegami, S. Jones, K. Kranz, R.E. Laxdal, S.M. Lidia, G. Machicoane, F. Marti, S.J. Miller, D.G. Morris, A.C. Morton, J.A. Nolen, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, G. Pozdeyev, T. Russo, K. Saito, G. Shen, S. Stanley, H. Tatsumoto, T. Xu, Y. Yamazaki
FRIB, East Lansing, USA
K. Dixon, M. Wiseman
JLab, Newport News, Virginia, USA
A. Facco
INFN/LNL, Legnaro (PD), Italy
K. Hosoyama
KEK, Ibaraki, Japan
H.-C. Hseuh
BNL, Upton, Long Island, New York, USA
M.P. Kelly, J.A. Nolen
ANL, Argonne, Illinois, USA
R.E. Laxdal
TRIUMF, Vancouver, Canada

With an average beam power two orders of magnitude higher than operating heavy-ion facilities, the Facility for Rare Isotope Beams (FRIB) stands at the power frontier of the accelerator family. This report summarizes the current design and construction status as well as plans for commissioning, operations and upgrades.
Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 and the National Science Foundation under Cooperative Agreement PHY-1102511.

Slides MO1A01 [48.813 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-MO1A01

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPLR063

Development of H⁰ Beam Diagnostic Line in MEBT2 of J-PARC Linac

277

J. Tamura, A. Miura, T. Morishita
JAEA/J-PARC, Tokai-mura, Japan
H. Ao
FRIB, East Lansing, USA
T. Maruta
J-PARC, KEK & JAEA, Ibaraki-ken, Japan
T. Miyao
KEK, Ibaraki, Japan

In the Japan Proton Accelerator Research Complex (J-PARC) linac, H⁰ particles arising from collisions of accelerated H⁻ beams with residual gas are considered as one of the key factors of the residual radiation in the high energy accelerating section. To analyze the H⁰ and the accelerated H⁻ particles, the bump magnet system was designed and produced. The H⁰ beam diagnostic line consists of four horizontal bending magnets, non-destructive beam position monitor and wire scan beam profile monitor. In the 2015 summer maintenance period of the J-PARC, the new diagnostic line was constructed in the beam transport (MEBT2), which is the matching section from separated-type drift tube linac (SDTL) to annular-ring coupled structure linac (ACS). In the beam commissioning, we experimentally confirmed that the accelerated 190 MeV H⁻ beams are horizontally shifted as expected with the magnetostatic field simulation and the particle tracking simulation.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-MOPLR063

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPLR067

Solenoid/Magnetic Shielding Test Results in FRIB-1&2 Cryomodules

607

SPWR006

use link to see paper's listing under its alternate paper code

D. Luo, H. Ao, E.E. Burkhardt, J. Casteel, A. Ganshyn, W. Hartung, M.J. Holcomb, J.T. Popielarski, K. Saito, S. Shanab, E. Supangco, M. Thrush
FRIB, East Lansing, Michigan, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661, the State of Michigan and Michigan State University.
Recently we did bunker tests for FRIB first cryomodule (CM-1) and second one (CM-2) which houses 0.085 QWRs and solenoid packages. Their performances were successfully validated in the full configuration. This paper reports the solenoid package tests results.

Poster TUPLR067 [4.899 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-TUPLR067

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WE2A02

FRIB Cryomodule Design and Production

673

T. Xu, H. Ao, B. Bird, N.K. Bultman, E.E. Burkhardt, F. Casagrande, C. Compton, J.L. Crisp, K.D. Davidson, K. Elliott, A. Facco, V. Ganni, A. Ganshyn, W. Hartung, M. Ikegami, P. Knudsen, S.M. Lidia, I.M. Malloch, S.J. Miller, D.G. Morris, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, S. Shanab, G. Shen, M. Shuptar, S. Stark, J. Wei, J.D. Wenstrom, M. Xu, Y. Xu, Y. Yamazaki, Z. Zheng
FRIB, East Lansing, USA
A. Facco
INFN/LNL, Legnaro (PD), Italy
K. Hosoyama
KEK, Ibaraki, Japan
M.P. Kelly
ANL, Argonne, Illinois, USA
R.E. Laxdal
TRIUMF, Vancouver, Canada
M. Wiseman
JLab, Newport News, Virginia, USA

Funding: U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
The Facility for Rare Isotope Beams (FRIB), under con-struction at Michigan State University, will utilize a driver linac to accelerate stable ion beams from protons to ura-nium up to energies of >200 MeV per nucleon with a beam power of up to 400 kW. Superconducting technology is widely used in the FRIB project, including the ion sources, linac, and experiment facilities. The FRIB linac consists of 48 cryomodules containing a total of 332 superconducting radio-frequency (SRF) resonators and 69 superconducting solenoids. We report on the design and the construction of FRIB cryomodules.

Slides WE2A02 [3.823 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE2A02

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPRC013

Design of a FRIB Half-Wave Pre-Production Cryomodule

795

S.J. Miller, H. Ao, B. Bird, G.D. Bryant, B. Bullock, N.K. Bultman, F. Casagrande, C. Compton, A. Facco, W. Hartung, J.D. Hulbert, D.G. Morris, P.N. Ostroumov, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, M. Shuptar, J. Simon, S. Stark, B.P. Tousignant, J. Wei, J.D. Wenstrom, K. Witgen, T. Xu, Z. Zheng
FRIB, East Lansing, USA
A. Facco
INFN/LNL, Legnaro (PD), Italy
M.P. Kelly
ANL, Argonne, Illinois, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661.
The driver linac for the Facility for Rare Isotope Beams (FRIB) will require the production of 48 cryomodules (CMs). In addition to the β=0.085 quarter-wave CM, FRIB has completed the design of a β=0.53 half-wave CM as a pre-production prototype. This CM will qualify the performance of the resonators, fundamental power couplers, tuners, and cryogenic systems of the β=0.53 half-wave design. In addition to the successful systems qualification; the β=0.53 CM build will also verify the FRIB bottom up assembly and alignment method on a half-wave CM type. The lessons learned from the β=0.085 pre-production CM build including valuable fabrication, sourcing, and assembly experience have been applied to the design of β=0.53 half-wave CM. This paper will report the design of the β=0.53 half-wave CM as well as the CM interfaces within the linac tunnel.

Poster THPRC013 [0.954 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC013

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPRC021

Status of β=0.53 Pre-Production Cryomodule

811

H. Ao, B. Bird, G.D. Bryant, B. Bullock, N.K. Bultman, C. Compton, A. Facco, J.D. Hulbert, S.J. Miller, J.T. Popielarski, L. Popielarski, M.A. Reaume, K. Saito, M. Shuptar, J. Simon, S. Stark, B.P. Tousignant, J.D. Wenstrom, K. Witgen, T. Xu, Z. Zheng
FRIB, East Lansing, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661.
The driver linac for the Facility for Rare Isotope Beams (FRIB) comprises four kinds of cavities (=0.041, 0.085, 0.29, and 0.53) and six types of cryomodules including matching modules. FRIB has started the fabrication of a β=0.53 preproduction cryomodule, which is the first prototype for a half-wave (=0.29 and 0.53) cavity. This paper describes the fabrication progress and the lessons learned from the β=0.53 preproduction cryomodule.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPRC024

Polarity Check of the FRIB Cryomodule Solenoids by Measuring Leakage Magnetic Field

821

H. Ao, D. Luo, F. Marti, K. Saito, S. Shanab
FRIB, East Lansing, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE SC0000661.
We observed the outside magnetic field of the first β=0.085 production cryomodule while a solenoid and steering dipoles are under operation. This measurement aims to check the polarity on these magnets after the final installation in the accelerating tunnel. This paper also shows the residual magnetic field variation through the degaussing process of these magnets.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC024

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)