Ion Source

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M. Okamura - One of the best experts on this subject based on the ideXlab platform.

  • cluster Ion Source for external injectIon and high capacity filling of light elements into the relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2019
    Co-Authors: S Kondrashev, E Beebe, M. Okamura
    Abstract:

    An advanced Electron Beam Ion Source (EBIS) is the primary Ion Source to supply highly charged Ion beams of different elements to the Relativistic Heavy Ion Collider (RHIC) and to the NASA Space RadiatIon Laboratory (NSRL). Intense beams of highly charged Ions of various elements of the periodic table, ranging from helium to uranium, have been demonstrated since EBIS became operatIonal in 2010. EBIS routinely provides Ion beams to RHIC and NSRL quasisimultaneously with about 1 s switching time between different Ion species. Such unique flexibility and rapid switching between Ion species are based on external injectIon of singly charged Ions into the EBIS trap either in “fast” or “slow” injectIon modes. At present, a Laser Ion Source (LIS) provides most of the Ion species of solid materials using the “fast” injectIon mode into the EBIS trap and a Hollow Cathode Ion Source (HCIS) provides most of the Ion species of gaseous elements using the “slow” injectIon mode into the EBIS trap. Gas injectIon into the EBIS trap is also possible and has been used but imposes some restrictIons for the simultaneous generatIon of highly charged Ions such as Au32+ Ions for RHIC and Ions of gaseous species for NSRL. Because light Ions have relatively high velocity inside the EBIS trap, efficient injectIon of hydrogen and helium Ions and filling of the EBIS trap to high capacity is difficult from either LIS or HCIS. To overcome this restrictIon and enhance EBIS operatIonal capability, we suggest injecting beams of hydrogen and helium cluster Ions into the EBIS trap. Required parameters of cluster Ion beam injectIon into the EBIS trap are estimated, and advantages of such an injectIon are highlighted. A cluster Ion Source with required high intensity is visible and will be designed, built, optimized, and tested.An advanced Electron Beam Ion Source (EBIS) is the primary Ion Source to supply highly charged Ion beams of different elements to the Relativistic Heavy Ion Collider (RHIC) and to the NASA Space RadiatIon Laboratory (NSRL). Intense beams of highly charged Ions of various elements of the periodic table, ranging from helium to uranium, have been demonstrated since EBIS became operatIonal in 2010. EBIS routinely provides Ion beams to RHIC and NSRL quasisimultaneously with about 1 s switching time between different Ion species. Such unique flexibility and rapid switching between Ion species are based on external injectIon of singly charged Ions into the EBIS trap either in “fast” or “slow” injectIon modes. At present, a Laser Ion Source (LIS) provides most of the Ion species of solid materials using the “fast” injectIon mode into the EBIS trap and a Hollow Cathode Ion Source (HCIS) provides most of the Ion species of gaseous elements using the “slow” injectIon mode into the EBIS trap. Gas injectIon into the E...

  • laser Ion Source with solenoid field
    Applied Physics Letters, 2014
    Co-Authors: T. Kanesue, K Kondo, Yasuhiro Fuwa, M. Okamura
    Abstract:

    Pulse length extensIon of highly charged Ion beam generated from a laser Ion Source is experimentally demonstrated. The laser Ion Source (LIS) has been recognized as one of the most powerful heavy Ion Source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting sectIon, a pulse length of carbon Ion beam reached 3.2 μs which was 4.4 times longer than the width from a conventIonal LIS. The particle number of carbon Ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 × 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser Ion Source with solenoid field could be used in a next generatIon heavy Ion accelerator.

  • design study of primary Ion provider for relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2010
    Co-Authors: K Kondo, T. Kanesue, J. Tamura, M. Okamura
    Abstract:

    Brookhaven NatIonal Laboratory has developed the new preinjector system, electron beam Ion Source (EBIS) for relativistic heavy Ion collider (RHIC) and NatIonal Aeronautics and Space AdministratIon Space RadiatIon Laboratory. Design of primary Ion provider is an essential problem since it is required to supply beams with different Ion species to multiple users simultaneously. The laser Ion Source with a defocused laser can provide a low charge state and low emittance Ion beam, and is a candidate for the primary Ion Source for RHIC-EBIS. We show a suitable design with appropriate drift length and solenoid, which helps to keep sufficient total charge number with longer pulse length. The whole design of primary Ion Source, as well as optics arrangement, solid targets configuratIon and heating about target, is presented.

  • feasibility study of a laser Ion Source for primary Ion injectIon into the relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2008
    Co-Authors: T. Kanesue, J. Tamura, M. Okamura
    Abstract:

    Charge state 1+Ions are required as a primary Ion Source for Relativistic Heavy Ion Collider-electron beam Ion Source (RHIC-EBIS) at BNL and laser Ion Source (LIS) is a candidate as one of the external Ion Source since low energy and low charge state Ions can be generated by lower power density laser irradiatIon onto solid target surface. Plasma properties of Al27, Fe56, and Ta181 using the second harmonics of Nd:yttrium aluminum garnet laser (0.73J∕5.5ns and 532nm wavelength) for low charge state Ion generatIon was measured. Charge state distributIon of Ta was optimized for 1+with estimated laser power density of 9.1×108W∕cm2 on the target. It has been shown that the LIS can produce sufficient Ion charge with the appropriate pulse structure to satisfy injectIon requirements of the RHIC EBIS.

H W Zhao - One of the best experts on this subject based on the ideXlab platform.

  • overview of high intensity Ion Source development in the past 20 years at imp
    Review of Scientific Instruments, 2020
    Co-Authors: H W Zhao, H Y Zhao, W W Lu, Qingbai Wu, C Qian, Y Yang, X Fang, Z M Zhang, X Z Zhang
    Abstract:

    Ion Source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of Ion Sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) Ion Source, intense microwave Ion Source or the 2.45 GHz intense beam ECR Ion Source, and laser Ion Source (LIS). In the development of ECR Ion Sources, SECRAL (Superconducting ECR Ion Source with Advanced design in Lanzhou), Lanzhou ECR Ion Source, and Lanzhou all permanent magnet ECR Ion Source series have been made, which can cover the operatIon microwave frequency range of 10–28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duratIon has been developed for very intense short pulse Ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave Ion Sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applicatIons. This paper will give an overview of the high intensity Ion Source development at the IMP, especially on the recent progress and new results, such as the status of the fourth generatIon ECR Ion Source (first fourth generatIon ECR Ion Source), the productIon of recorded highly charged Ion beams with SECRAL Sources, key technology research studies, and so on.Ion Source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of Ion Sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) Ion Source, intense microwave Ion Source or the 2.45 GHz intense beam ECR Ion Source, and laser Ion Source (LIS). In the development of ECR Ion Sources, SECRAL (Superconducting ECR Ion Source with Advanced design in Lanzhou), Lanzhou ECR Ion Source, and Lanzhou all permanent magnet ECR Ion Source series have been made, which can cover the operatIon microwave frequency range of 10–28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duratIon has been developed for very intense short pulse Ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave Ion Sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applicatIons. This pa...

  • overview of high intensity Ion Source development in the past 20 years at imp
    Review of Scientific Instruments, 2020
    Co-Authors: Liang Ting Sun, H W Zhao, J. W. Guo, H Y Zhao, C Qian, Y Yang, X Fang, Yufei Cao, Zhi Zhang, Xiaogang Zhang
    Abstract:

    Ion Source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of Ion Sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) Ion Source, intense microwave Ion Source or the 2.45 GHz intense beam ECR Ion Source, and laser Ion Source (LIS). In the development of ECR Ion Sources, SECRAL (Superconducting ECR Ion Source with Advanced design in Lanzhou), Lanzhou ECR Ion Source, and Lanzhou all permanent magnet ECR Ion Source series have been made, which can cover the operatIon microwave frequency range of 10–28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duratIon has been developed for very intense short pulse Ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave Ion Sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applicatIons. This paper will give an overview of the high intensity Ion Source development at the IMP, especially on the recent progress and new results, such as the status of the fourth generatIon ECR Ion Source (first fourth generatIon ECR Ion Source), the productIon of recorded highly charged Ion beams with SECRAL Sources, key technology research studies, and so on.

  • intense carbon beams productIon with an all permanent magnet electron cyclotron resonance Ion Source for heavy Ion medical machine
    Review of Scientific Instruments, 2020
    Co-Authors: Jing Li, X Z Zhang, Xiangdong Fang, H Wang, H W Zhao
    Abstract:

    LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.

  • Intense carbon beams productIon with an all permanent magnet electron cyclotron resonance Ion Source for heavy Ion medical machine.
    The Review of scientific instruments, 2020
    Co-Authors: Li Jiangtao, X Z Zhang, Xiangdong Fang, Yujing Cao, Lijing Sun, J. W. Guo, H. W. Wang, H W Zhao
    Abstract:

    LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.

  • status of the laser Ion Source at imp
    Review of Scientific Instruments, 2012
    Co-Authors: S Sha, H W Zhao, Xiangdong Fang, Yujing Cao, Xiaofeng Guo, Zhouli Zhang, Jincheng Guo, W H Zhang, H Y, S H Lin
    Abstract:

    A laser (Nd:YAG laser, 3 J, 1064 nm, 8–10 ns) Ion Source has been built and under development at IMP to provide pulsed high-charge-state heavy Ion beams to a radio frequency quadrupole (RFQ) for upgrading the IMP accelerators with a new low-energy beam injector. The laser Ion Source currently operates in a direct plasma injectIon scheme to inject the high charge state Ions produced from a solid target into the RFQ. The maximum power density on the target was about 8.4 × 1012 W/cm2. The preliminary experimental results will be presented and discussed in this paper.

T. Kanesue - One of the best experts on this subject based on the ideXlab platform.

  • laser Ion Source with solenoid field
    Applied Physics Letters, 2014
    Co-Authors: T. Kanesue, K Kondo, Yasuhiro Fuwa, M. Okamura
    Abstract:

    Pulse length extensIon of highly charged Ion beam generated from a laser Ion Source is experimentally demonstrated. The laser Ion Source (LIS) has been recognized as one of the most powerful heavy Ion Source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting sectIon, a pulse length of carbon Ion beam reached 3.2 μs which was 4.4 times longer than the width from a conventIonal LIS. The particle number of carbon Ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 × 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser Ion Source with solenoid field could be used in a next generatIon heavy Ion accelerator.

  • design study of primary Ion provider for relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2010
    Co-Authors: K Kondo, T. Kanesue, J. Tamura, M. Okamura
    Abstract:

    Brookhaven NatIonal Laboratory has developed the new preinjector system, electron beam Ion Source (EBIS) for relativistic heavy Ion collider (RHIC) and NatIonal Aeronautics and Space AdministratIon Space RadiatIon Laboratory. Design of primary Ion provider is an essential problem since it is required to supply beams with different Ion species to multiple users simultaneously. The laser Ion Source with a defocused laser can provide a low charge state and low emittance Ion beam, and is a candidate for the primary Ion Source for RHIC-EBIS. We show a suitable design with appropriate drift length and solenoid, which helps to keep sufficient total charge number with longer pulse length. The whole design of primary Ion Source, as well as optics arrangement, solid targets configuratIon and heating about target, is presented.

  • feasibility study of a laser Ion Source for primary Ion injectIon into the relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2008
    Co-Authors: T. Kanesue, J. Tamura, M. Okamura
    Abstract:

    Charge state 1+Ions are required as a primary Ion Source for Relativistic Heavy Ion Collider-electron beam Ion Source (RHIC-EBIS) at BNL and laser Ion Source (LIS) is a candidate as one of the external Ion Source since low energy and low charge state Ions can be generated by lower power density laser irradiatIon onto solid target surface. Plasma properties of Al27, Fe56, and Ta181 using the second harmonics of Nd:yttrium aluminum garnet laser (0.73J∕5.5ns and 532nm wavelength) for low charge state Ion generatIon was measured. Charge state distributIon of Ta was optimized for 1+with estimated laser power density of 9.1×108W∕cm2 on the target. It has been shown that the LIS can produce sufficient Ion charge with the appropriate pulse structure to satisfy injectIon requirements of the RHIC EBIS.

X Z Zhang - One of the best experts on this subject based on the ideXlab platform.

  • overview of high intensity Ion Source development in the past 20 years at imp
    Review of Scientific Instruments, 2020
    Co-Authors: H W Zhao, H Y Zhao, W W Lu, Qingbai Wu, C Qian, Y Yang, X Fang, Z M Zhang, X Z Zhang
    Abstract:

    Ion Source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of Ion Sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) Ion Source, intense microwave Ion Source or the 2.45 GHz intense beam ECR Ion Source, and laser Ion Source (LIS). In the development of ECR Ion Sources, SECRAL (Superconducting ECR Ion Source with Advanced design in Lanzhou), Lanzhou ECR Ion Source, and Lanzhou all permanent magnet ECR Ion Source series have been made, which can cover the operatIon microwave frequency range of 10–28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duratIon has been developed for very intense short pulse Ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave Ion Sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applicatIons. This paper will give an overview of the high intensity Ion Source development at the IMP, especially on the recent progress and new results, such as the status of the fourth generatIon ECR Ion Source (first fourth generatIon ECR Ion Source), the productIon of recorded highly charged Ion beams with SECRAL Sources, key technology research studies, and so on.Ion Source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of Ion Sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) Ion Source, intense microwave Ion Source or the 2.45 GHz intense beam ECR Ion Source, and laser Ion Source (LIS). In the development of ECR Ion Sources, SECRAL (Superconducting ECR Ion Source with Advanced design in Lanzhou), Lanzhou ECR Ion Source, and Lanzhou all permanent magnet ECR Ion Source series have been made, which can cover the operatIon microwave frequency range of 10–28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duratIon has been developed for very intense short pulse Ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave Ion Sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applicatIons. This pa...

  • intense carbon beams productIon with an all permanent magnet electron cyclotron resonance Ion Source for heavy Ion medical machine
    Review of Scientific Instruments, 2020
    Co-Authors: Jing Li, X Z Zhang, Xiangdong Fang, H Wang, H W Zhao
    Abstract:

    LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.

  • Intense carbon beams productIon with an all permanent magnet electron cyclotron resonance Ion Source for heavy Ion medical machine.
    The Review of scientific instruments, 2020
    Co-Authors: Li Jiangtao, X Z Zhang, Xiangdong Fang, Yujing Cao, Lijing Sun, J. W. Guo, H. W. Wang, H W Zhao
    Abstract:

    LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance Ion Source No. 3) had been developed as an Ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 Ion Source has delivered C5+ Ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 Ion Source for intense carbon beams productIon, continuous research and development work has been made. The recently developed LAPECR3 Ion Source together with the new low-energy beam transportatIon can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 Ion Source operatIon status for HIMM, and the recent improvement will be presented, especially the stable beams productIon of C4+ and C5+.

  • An all permanent magnet electron cyclotron resonance Ion Source for heavy Ion therapy.
    The Review of scientific instruments, 2014
    Co-Authors: Yun Cao, X Z Zhang, H Wang, Liang Ting Sun, Yu Cheng Feng, Bao Hua
    Abstract:

    A high charge state all permanent Electron Cyclotron Resonance Ion Source, Lanzhou All Permanent ECR Ion Source no. 3-LAPECR3, has been successfully built at IMP in 2012, which will serve as the Ion injector of the Heavy Ion Medical Machine (HIMM) project. As a commercial device, LAPECR3 features a compact structure, small size, and low cost. According to HIMM scenario more than 100 eμA of C5+ Ion beam should be extracted from the Ion Source, and the beam emittance better than 75 π*mm*mrad. In recent commissIoning, about 120 eμA of C5+ Ion beam was got when work gas was CH4 while about 262 eμA of C5+ Ion beam was obtained when work gas was C2H2 gas. The design and constructIon of the Ion Source and its low-energy transportatIon beam line, and the preliminary commissIoning results will be presented in detail in this paper.

  • new development of advanced superconducting electron cyclotron resonance Ion Source secral invited
    Review of Scientific Instruments, 2010
    Co-Authors: H W Zhao, X Z Zhang, H Y Zhao, H Y, Y C Feng, L T Sun, Xiaozhi Guo, Y Cao, Y Shang, B H
    Abstract:

    Superconducting electron cyclotron resonance Ion Source with advance design in Lanzhou (SECRAL) is an 18–28 GHz fully superconducting electron cyclotron resonance (ECR) Ion Source dedicated for highly charged heavy Ion beam productIon. SECRAL, with an innovative superconducting magnet structure of solenoid-inside-sextupole and at lower frequency and lower rf power operatIon, may open a new way for developing compact and reliable high performance superconducting ECR Ion Source. One of the recent highlights achieved at SECRAL is that some new record beam currents for very high charge states were produced by 18 GHz or 18+14.5 GHz double frequency heating, such as 1 e μA of X129e43+, 22 e μA of B209i41+, and 1.5 e μA of B209i50+. To further enhance the performance of SECRAL, a 24 GHz/7 kW gyrotron microwave generator was installed and SECRAL was tested at 24 GHz. Some promising and exciting results at 24 GHz with new record highly charged Ion beam intensities were produced, such as 455 e μA of X129e27+ and 15...

K Kondo - One of the best experts on this subject based on the ideXlab platform.

  • laser Ion Source with solenoid field
    Applied Physics Letters, 2014
    Co-Authors: T. Kanesue, K Kondo, Yasuhiro Fuwa, M. Okamura
    Abstract:

    Pulse length extensIon of highly charged Ion beam generated from a laser Ion Source is experimentally demonstrated. The laser Ion Source (LIS) has been recognized as one of the most powerful heavy Ion Source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting sectIon, a pulse length of carbon Ion beam reached 3.2 μs which was 4.4 times longer than the width from a conventIonal LIS. The particle number of carbon Ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 × 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser Ion Source with solenoid field could be used in a next generatIon heavy Ion accelerator.

  • design study of primary Ion provider for relativistic heavy Ion collider electron beam Ion Source
    Review of Scientific Instruments, 2010
    Co-Authors: K Kondo, T. Kanesue, J. Tamura, M. Okamura
    Abstract:

    Brookhaven NatIonal Laboratory has developed the new preinjector system, electron beam Ion Source (EBIS) for relativistic heavy Ion collider (RHIC) and NatIonal Aeronautics and Space AdministratIon Space RadiatIon Laboratory. Design of primary Ion provider is an essential problem since it is required to supply beams with different Ion species to multiple users simultaneously. The laser Ion Source with a defocused laser can provide a low charge state and low emittance Ion beam, and is a candidate for the primary Ion Source for RHIC-EBIS. We show a suitable design with appropriate drift length and solenoid, which helps to keep sufficient total charge number with longer pulse length. The whole design of primary Ion Source, as well as optics arrangement, solid targets configuratIon and heating about target, is presented.