Making Micro- and Nano-beams by Channeling in Micro- and Nano-structures

Details Making Micro- and Nano-beams by Channeling in Micro- and Nano-structures Making Micro- and Nano-beams by Channeling in Micro- and Nano-structures

2002-09-16

arxiv.org/abs/physics/0209057v1

Phys.Rev.ST Accel.Beams 6 (2003) 033502

Physics

Accelerator Physics

8 pages, 4 figures

Scientific paper

10.1103/PhysRevSTAB.6.033502

A particle beam of very small cross-section is useful in many accelerator applications including biological and medical ones. We show the capability of the channeling technique using a micron-sized structure on a surface of a single crystal, or using a nanotube, to produce beam of a cross-section down to 1 square micrometer (or nanometer). The channeled beam can be deflected and thus well separated in angle and space from the primary and scattered particles. Monte Carlo simulation is done to evaluate the characteristics of a channeled microbeam. Emittances down to 0.1-0.001 nanometer radian, and flux up to 1 million particles per square micron per second, can be achieved for protons and ions.

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