JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{makarov:rupac2021-wepsc28,
author = {A.N. Makarov and S. Savinov and I.M. Shchudlo and S.Yu. Taskaev},
title = {{Optical Diagnostics of 1 MeV Proton Beam in Argon Stripping Target of a Tandem Accelerator}},
% booktitle = {Proc. RuPAC'21},
booktitle = {Proc. 27th Russ. Part. Accel. Conf. (RuPAC'21)},
eventdate = {2021-09-27/2021-10-01},
pages = {393--395},
eid = {WEPSC28},
language = {english},
keywords = {diagnostics, neutron, proton, vacuum, tandem-accelerator},
venue = {Alushta, Crimea},
series = {Russian Particle Accelerator Conference},
number = {27},
publisher = {JACoW Publishing},
location = {Geneva, Switzerland},
date = {2021-10},
month = {10},
year = {2021},
issn = {2673-5539},
isbn = {978-3-95450-240-0},
doi = {10.18429/JACoW-RuPAC2021-WEPSC28},
url = {https://jacow.org/rupac2021/papers/wepsc28.pdf},
abstract = {{A neutron source for boron neutron capture therapy based on a vacuum-insulated tandem accelerator has been developed and operates at Budker Institute of Nuclear Physics. Conducting a ~10 mm proton beam with a power of up to 20 kW through a system of accelerating electrodes and 16 mm argon stripping tube is not an easy task. Any mistake made by operator or a malfunction of the equipment responsible for the correction of the beam position in the ion beam line can lead to permanent damage to the accelerator. To determine the position of the proton beam inside the argon stripping tube, optical diagnostics have been developed based on the Celestron Ultima 80-45 telescope and a cooled mirror located at an angle of 45 degrees to the beam axis in the straight-through channel of the bending magnet. The cooled mirror also performs the function of measuring the neutral current due to the electrical isolation of the mirror and the extraction of secondary electrons from its surface. The luminescence of a beam in the optical range, observed with the help of the developed diagnostics, made it possible for the first time to determine beam size and position inside the stripping tube with an accuracy of 1 mm. The light sensitivity of the applied optical elements is sufficient for using a shutter speed from 2 to 20 ms to obtain a color image of the beam in real time. This makes it possible to realize a fast interlock in case of a sudden displacement of the beam.}},
}