HIAT2015 - List of Authors (Kanesue, T.)

Paper	Title	Page
WEPB11	Charge State Selective Ion Beam Acceleration with RFQ Linac	216
	J. Tamura JAEA/J-PARC, Tokai-mura, Japan Y. Fuwa Kyoto ICR, Uji, Kyoto, Japan T. Kanesue, M. Okamura BNL, Upton, Long Island, New York, USA
	DPIS (Direct Plasma Injection Scheme) is one of the effective methods for high-intensity heavy ion beam acceleration. In DPIS, ions are extracted from laser-produced plasma at the entrance of an RFQ linac. The plasma generated by high power density laser irradiation consists of multiple charge state ions, therefore, the ions with different charge states are simultaneously injected into an RFQ. In an RFQ, ions whose charge state is comparable with that of ions desired for acceleration are captured by RF bucket. To prevent the unneeded ions from being accelerated, we investigated the beam dynamics in an RFQ and performed the particle tracking simulation. The simulation result shows that the discontinuous transition of the synchronous phase inhibits the acceleration of the unneeded ions without significant loss of desired ions. To validate the designed cell parameter via oncoming beam test, we fabricated the new 4-rod RFQ vanes for carbon 5+ acceleration.
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WEPB28	Control of Laser Ablation Plasma by Pulsed Magnetic Field for Heavy Ion Beam Production	259
	S. Ikeda TIT, Yokohama, Japan M.R. Costanzo, T. Kanesue, R.F. Lambiase, C.J. Liaw, M. Okamura BNL, Upton, Long Island, New York, USA S. Ikeda RIKEN, Saitama, Japan
	Laser ion source can provide high brightness heavy ion beam. In the source, a plasma produced by a pulsed laser irradiation on a solid material drifts toward the extraction electrode. In the meantime, the plasma expands spatially and its flux density at the extraction point dramatically changes within a beam pulse. To stabilize the variation, we try to control the expanding plasma by applying pulsed magnetic field. So that we may achieve flat or tailored beam current profile. For this purpose, we are designing coils and pulsed circuit and these will be experimentally verified.
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THM1C03	Performance of the Low Charge State Laser Ion Source in BNL	274
	M. Okamura, J.G. Alessi, E.N. Beebe, M.R. Costanzo, L. DeSanto, J.P. Jamilkowski, T. Kanesue, R.F. Lambiase, D. Lehn, C.J. Liaw, D.R. McCafferty, J. Morris, R.H. Olsen, A.I. Pikin, D. Raparia, A.N. Steszyn BNL, Upton, Long Island, New York, USA S. Ikeda TIT, Yokohama, Japan
	Funding: NASA DOE In March 2014, a Laser Ion Source (LIS) was commissioned which delivers high brightness low charge state heavy ions for the hadron accelerator complex in Brookhaven National Laboratory (BNL). Since then, the LIS has provided many heavy ion species successfully. The induced low charge state (mostly singly charged) beams are injected to the Electron Beam Ion Source (EBIS) where ions are then highly ionized to fit to the following accelerator's Q/M acceptance, like Au³²⁺. Recently we upgraded the LIS to be able to provide two different beams into EBIS on a pulse-to-pulse basis . Now the LIS is simultaneously providing beams for both the Relativistic Heavy Ion Collider (RHIC) and NASA Space Radiation Laboratory (NSRL). In the conference we present details of the LIS including effect of plasma confinement solenoid.
	Slides THM1C03 [6.926 MB]
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Paper

Title

Page

Charge State Selective Ion Beam Acceleration with RFQ Linac

216

J. Tamura
JAEA/J-PARC, Tokai-mura, Japan
Y. Fuwa
Kyoto ICR, Uji, Kyoto, Japan
T. Kanesue, M. Okamura
BNL, Upton, Long Island, New York, USA

DPIS (Direct Plasma Injection Scheme) is one of the effective methods for high-intensity heavy ion beam acceleration. In DPIS, ions are extracted from laser-produced plasma at the entrance of an RFQ linac. The plasma generated by high power density laser irradiation consists of multiple charge state ions, therefore, the ions with different charge states are simultaneously injected into an RFQ. In an RFQ, ions whose charge state is comparable with that of ions desired for acceleration are captured by RF bucket. To prevent the unneeded ions from being accelerated, we investigated the beam dynamics in an RFQ and performed the particle tracking simulation. The simulation result shows that the discontinuous transition of the synchronous phase inhibits the acceleration of the unneeded ions without significant loss of desired ions. To validate the designed cell parameter via oncoming beam test, we fabricated the new 4-rod RFQ vanes for carbon 5+ acceleration.

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WEPB28

Control of Laser Ablation Plasma by Pulsed Magnetic Field for Heavy Ion Beam Production

259

S. Ikeda
TIT, Yokohama, Japan
M.R. Costanzo, T. Kanesue, R.F. Lambiase, C.J. Liaw, M. Okamura
BNL, Upton, Long Island, New York, USA
S. Ikeda
RIKEN, Saitama, Japan

Laser ion source can provide high brightness heavy ion beam. In the source, a plasma produced by a pulsed laser irradiation on a solid material drifts toward the extraction electrode. In the meantime, the plasma expands spatially and its flux density at the extraction point dramatically changes within a beam pulse. To stabilize the variation, we try to control the expanding plasma by applying pulsed magnetic field. So that we may achieve flat or tailored beam current profile. For this purpose, we are designing coils and pulsed circuit and these will be experimentally verified.

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THM1C03

Performance of the Low Charge State Laser Ion Source in BNL

274

M. Okamura, J.G. Alessi, E.N. Beebe, M.R. Costanzo, L. DeSanto, J.P. Jamilkowski, T. Kanesue, R.F. Lambiase, D. Lehn, C.J. Liaw, D.R. McCafferty, J. Morris, R.H. Olsen, A.I. Pikin, D. Raparia, A.N. Steszyn
BNL, Upton, Long Island, New York, USA
S. Ikeda
TIT, Yokohama, Japan

Funding: NASA DOE
In March 2014, a Laser Ion Source (LIS) was commissioned which delivers high brightness low charge state heavy ions for the hadron accelerator complex in Brookhaven National Laboratory (BNL). Since then, the LIS has provided many heavy ion species successfully. The induced low charge state (mostly singly charged) beams are injected to the Electron Beam Ion Source (EBIS) where ions are then highly ionized to fit to the following accelerator's Q/M acceptance, like Au³²⁺. Recently we upgraded the LIS to be able to provide two different beams into EBIS on a pulse-to-pulse basis . Now the LIS is simultaneously providing beams for both the Relativistic Heavy Ion Collider (RHIC) and NASA Space Radiation Laboratory (NSRL). In the conference we present details of the LIS including effect of plasma confinement solenoid.

Slides THM1C03 [6.926 MB]

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reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text, ※ RIS/RefMan, ※ EndNote (xml)