Laser ion source for heavy ion synchrotrons (invited)

1998 ◽  
Vol 69 (2) ◽  
pp. 1035-1039 ◽  
Author(s):  
B. Yu. Sharkov ◽  
S. Kondrashev ◽  
I. Roudskoy ◽  
S. Savin ◽  
A. Shumshurov ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Ion Source ◽  
Laser Ion Source

Laser ion source for heavy ion accelerators

1992 ◽  
Vol 63 (4) ◽  
pp. 2841-2843 ◽  
Author(s):  
B. Yu. Sharkov ◽  
A. V. Shumshurov ◽  
V. P. Dubenkow ◽  
O. B. Shamaev ◽  
A. A. Golubev
Keyword(s):  
Heavy Ion ◽  
Ion Source ◽  
Laser Ion Source

scholarly journals Development of laser-plasma generator for injector of C4+ ions

2012 ◽  
Vol 30 (1) ◽  
pp. 65-73 ◽  
Author(s):  
N.N. Alekseev ◽  
A.N. Balabaev ◽  
A.A. Vasilyev ◽  
Yu.A. Satov ◽  
S.M. Savin ◽  
...  
Keyword(s):  
Laser Beam ◽  
Plasma Generator ◽  
Heavy Ion ◽  
Ion Source ◽  
Optical Scheme ◽  
Laser Ion Source ◽  
Active Volume ◽  
Free Running ◽  
Discharge Formation ◽  
Current Trace

AbstractThe results of the development of the ITEP accelerator carbon ion injector based on a repetition-rate CO2 laser ion source are described. The improvement includes a modified pulsed HV-feeding generator for the discharge formation in the laser gas mixture. The advanced discharge module ensures essential increase of the laser active volume and specific electrical deposition energy. The comparative computer simulations of the discharge characteristics for the improved and the prototype lasers are applied. The design and the output spatial-temporal parameters of the free-running laser “Malish-M” are shown, so the significant increase of the laser power is reached. The spatial characteristics of the laser beam obtained with diffraction calculations are compared to measured radial distribution of the energy density. The target laser intensity and the different channels of the energy loss of the laser beam in the optical scheme are estimated. Finally, the output C4+ current trace of heavy ion injector as well as the injector scheme are shown.

scholarly journals The CERN laser–ion source

1996 ◽  
Vol 14 (3) ◽  
pp. 283-292 ◽  
Author(s):  
J. Collier ◽  
G. Hall ◽  
H. Haseroth ◽  
H. Kugler ◽  
A. Kuttenberger ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Feasibility Study ◽  
Heavy Ion ◽  
Ion Beams ◽  
Ion Source ◽  
Laser Ion Source ◽  
Radio Frequency Quadrupole ◽  
Laser Produced Plasma ◽  
Light Ions ◽  
First Results

This paper describes the first results of a feasibility study undertaken at CERN to determine whether a laser-produced plasma can be used as a source of intense highly charged heavy ion beams. A variety of important measurements have been made, and the results are encouraging. Furthermore, a beam of highly charged light ions produced by the laser ion source has been accelerated successfully in a radio frequency quadrupole (RFQ) structure.

scholarly journals Laser ion source for isobaric heavy ion collider experiment

2016 ◽  
Vol 87 (2) ◽  
pp. 02A920 ◽  
Author(s):  
T. Kanesue ◽  
M. Kumaki ◽  
S. Ikeda ◽  
M. Okamura
Keyword(s):  
Heavy Ion ◽  
Ion Source ◽  
Laser Ion Source ◽  
Collider Experiment

scholarly journals Laser ion source of multicharged ions for ITEP accumulator facility

2002 ◽  
Vol 20 (3) ◽  
pp. 455-458 ◽  
Author(s):  
N.D. MESCHERYAKOV ◽  
N.N. ALEXEEV ◽  
A.N. BALABAEV ◽  
S.A. KONDRASHEV ◽  
K.V. KONYUKOV ◽  
...  
Keyword(s):  
High Voltage ◽  
Ion Beam ◽  
Laser Cavity ◽  
Heavy Ion ◽  
Ion Source ◽  
Target Chamber ◽  
Laser Ion Source ◽  
State Institute ◽  
Energy Beam ◽  
Term Operation

In this article, we present the results of the laser ion source (LIS) for heavy ion high charge state Institute of Theoretical and Experimental Physics terawatt accumulator facility. This LIS is a duty ion source of C+4 for the injector. The main parameters of CO2 laser, vacuum target chamber, ion beam high voltage extraction system, and low energy beam transport line are shown. The stability of the LIS operation is discussed and measured ion beam parameters (ion current, pulse duration, emittance) for different charge states are presented. After the upgrading of the laser cavity, high voltage capacitors, and spark gaps and the installation of a new catalyst regenerator system, the CO2 laser became much more stable and allows long term operation. LIS works about 1 × 106 shots without intervention.

TWAC facility and the use of the laser ion source for production of intense heavy ion beams

1999 ◽  
Author(s):  
Boris Sharkov ◽  
S. Kondrashev ◽  
A. Shumshurov ◽  
N. Mescheryakov ◽  
I. Rudskoy ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Ion Beams ◽  
Ion Source ◽  
Laser Ion Source

scholarly journals Effect of tapered magnetic field on expanding laser-produced plasma for heavy-ion inertial fusion

2016 ◽  
Vol 35 (1) ◽  
pp. 53-57 ◽  
Author(s):  
T. Kanesue ◽  
S. Ikeda
Keyword(s):  
Magnetic Field ◽  
Ion Beam ◽  
Heavy Ion ◽  
Ion Source ◽  
Inertial Fusion ◽  
Laser Ion Source ◽  
Laser Produced Plasma ◽  
The Magnetic Field ◽  
Target Side ◽  
Tapered Magnetic Field

AbstractA laser ion source (LIS) is a promising candidate as an ion source for heavy-ion inertial fusion (HIF), where a pulsed ultra-intense and low-charged heavy ion beam is required. It is a key development for a LIS to transport laser-produced plasma with a magnetic field to achieve a high-current beam. The effect of a tapered magnetic field on laser-produced plasma is demonstrated by comparing the results with a straight solenoid magnet. The magnetic field of interest is a wider aperture on a target side and narrower aperture on an extraction side. Based on the experimentally obtained results, the performance of a scaled LIS for HIF was estimated.

scholarly journals Physical mechanisms leading to high currents of highly charged ions in laser-driven ion sources

1996 ◽  
Vol 14 (3) ◽  
pp. 393-438 ◽  
Author(s):  
Helmut Haseroth ◽  
Heinrich Hora
Keyword(s):  
Electron Cyclotron Resonance ◽  
Impact Ionization ◽  
Heavy Ion ◽  
Ion Source ◽  
Ion Sources ◽  
Laser Ion Source ◽  
Laser Plasma Interactions ◽  
Ion Generation ◽  
Ponderomotive Forces ◽  
Short Time

Heavy ion sources for the big accelerators, for example, the LHC, require considerably more ions per pulse during a short time than the best developed classical ion source, the electron cyclotron resonance (ECR) provides; thus an alternative ion source is needed. This can be expected from laser-produced plasmas, where dramatically new types of ion generation have been observed. Experiments with rather modest lasers have confirmed operation with one million pulses of 1 Hz, and 1011 C4+ ions per pulse reached 2 GeV/u in the Dubna synchrotron. We review here the complexities of laser-plasma interactions to underline the unique and extraordinary possibilities that the laser ion source offers. The complexities are elaborated with respect to keV and MeV ion generation, nonlinear (ponderomotive) forces, self-focusing, resonances and “hot” electrons, parametric instabilities, double-layer effects, and the few ps stochastic pulsation (stuttering). Recent experiments with the laser ion source have been analyzed to distinguish between the ps and ns interaction, and it was discovered that one mechanism of highly charged ion generation is the electron impact ionization (EII) mechanism, similar to the ECR, but with so much higher plasma densities that the required very large number of ions per pulse are produced.

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