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Front-end simulation of injector for terawatt accumulator
G N Kropachev1, A I Balabin, A A Kolomiets
1Institute for Theoretical and Experimental Physics, Moscow, Russia.
The Review of Scientific Instruments
|March 5, 2008
Summary
A new terawatt accumulator (TWAC) injector, I4, is being developed with a laser ion source and optimized beam transport. Simulations focused on maximizing ion source brightness and matching the beam to the radio frequency quadrupole (RFQ) accelerator.
Area of Science:
- Particle accelerators and beam physics
- Plasma physics and ion sources
- Computational physics and simulation
Background:
- Development of a terawatt accumulator (TWAC) accelerator/storage ring complex at ITEP.
- Construction of a new injector, I4, featuring a laser ion source, radio frequency quadrupole (RFQ), and interdigital H-mode (IH) linear accelerator.
Purpose of the Study:
- To simulate and optimize the ion source extraction system for maximum beam brightness.
- To investigate the low-energy beam transport (LEBT) for efficient ion beam matching with the RFQ.
- To present the results of extraction system and LEBT investigations for the I4 injector.
Main Methods:
- Utilized the KOBRA3-INP code for simulation and optimization of the ion source extraction system.
- Employed KOBRA3-INP for investigating the low-energy beam transport (LEBT) system.
- Designed the LEBT using electrostatic grid lenses for the I4 injector.
Main Results:
- Optimization of the laser ion source extraction system to achieve maximum beam brightness.
- Successful investigation and selection of an electrostatic grid lens-based LEBT.
- Demonstrated ion beam matching capabilities between the extraction system, LEBT, and the RFQ accelerator.
Conclusions:
- The KOBRA3-INP code is effective for optimizing ion source extraction and LEBT design.
- The chosen LEBT configuration ensures efficient beam matching for the I4 injector.
- The developed components are suitable for the TWAC accelerator/storage ring complex.
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