Speaker
Dr
Vadim Skalyga
(Institute of Applied Physics, Russian Academy of Sciences)
Description
Operation of modern high power accelerators often requires production of intense beams of hydrogen ions. H+ and D+ beams are utilized or envisioned for use in linear accelerators. Requirements for the brightness of such beams grow together with the demand of accelerator development and arising experimental needs. New facilities aiming at outperforming the previous generation accelerators are usually designed for higher beam currents. Enhancing the hydrogen beam intensity and maintaining low transverse emittance at the same time is, however, becoming increasingly difficult. The most modern accelerators require hydrogen ion beams with currents up to hundreds of mA (pulsed or CW), and normalized emittance less than 0.2-0-3 π·mm·mrad to keep the beam losses at high energy sections of the linac below commonly imposed 1 W/m limit.
The latest results of high current H+ and D+ beams formation from plasma of ECR discharge sustained by 75 GHz / 200 kW gyrotron radiation in open magnetic trap of simple mirror configuration at the Institute of Applied Physics (IAP RAS) are presented. High microwave power and frequency allow sustaining higher density hydrogen plasma (ne up to 7·10$^{13}$ cm$^{-3}$) in comparison to conventional ECRIS’s or microwave sources. The low ion temperature, on the order of a few eV, is beneficial to produce light ion beams with low emittance. Results on ion beam extraction and emittance measurements are presented.
Work was performed in frame of realization of federal targeted program “R&D in Priority Fields of the S&T Complex of Russia (2014-2020)” contract #14.604.21.0065 (unique identification number RFMEFI60414X0065).
Primary author
Dr
Vadim Skalyga
(Institute of Applied Physics, Russian Academy of Sciences)
Co-authors
Dr
Alexander Sidorov
(Institute of Applied Physics, Russian Academy of Sciences)
Mr
Ivan Izotov
(Institute of Applied Physics, Russian Academy of Sciences)
Prof.
Sergey Golubev
(Institute of Applied Physics, Russian Academy of Sciences)
Dr
Sergey Razin
(Institute of Applied Physics, Russian Academy of Sciences)
