HIF 2010
18th International Symposium
on Heavy Ion Inertial Fusion -
Information

Title:	Dr.
Family Name:	Hasegawa
First Name:	Jun
E-Mail:	jhasegawnr.titech.ac.jp
Affiliation for Badge:	Tokyo Institute of Technology
Institute:
Address (Street):	2-12-1-N1-14 Ookayama, Meguro-ku
Postal Code, City:	152-8550, Tokyo
Country:	Japan
Phone:	+81-3-5734-3070
Fax:	+81-3-5734-3070
Payment:	Cash at the conference site
Author(s):	Jun Hasegawa, Sarawut Jaiyen, and Yoshiyuki Oguri
Institute(s):	Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
Title:	Monte-Carlo Simulations of Ion Beam Focusing Using Glancing-Angle Scattering
Abstract:	A beam-focusing method based on glancing-angle scattering of ions on solid surface offers an option for final focusing of charge- and current-neutralized beams propagating in background gas or plasma because it uses no electromagnetic field to bend ion trajectory. The purpose of this study is to examine the applicability of this technique to high-energy-density or HIF-related experiments planned in several facilities. To simulate ion trajectories in the focusing devise, a three-dimensional Monte-Carlo code was developed, which takes into account all elastic collisions occurring in the scattering bodies. The reliability of the code was confirmed by comparing simulation results with those obtained from previous experiments using tapered capillaries. Beam transmissions through the focusing devises were evaluated as functions of ion species, beam energy, and geometrical configuration of scattering bodies. Spatial and energy distribution of ions behind the devise were also examined. From these simulation results, the optimization of the focusing devise parameters and its limitations are discussed.
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