JACoW logo

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.


RIS citation export for THPSC034: Reducing of Accompanied Electrons in the Tandem Accelerator by Magnetic Field

TY - UNPB
AU - Ostreinov, Y.M.
AU - Kasatov, D.A.
AU - Makarov, A.N.
AU - Shchudlo, I.M.
ED - Kuzin, Maxim
ED - Schaa, Volker RW
TI - Reducing of Accompanied Electrons in the Tandem Accelerator by Magnetic Field
J2 - Proc. of RuPAC2016, St. Petersburg, Russia, November 21-25, 2016
C1 - St. Petersburg, Russia
T2 - Russian Particle Accelerator Conference
T3 - 25
LA - english
AB - In the BINP SB RAS was created a source of epithermal neutrons for BNCT. The proton beam is obtained by stripping negative hydrogen inside gas target. Using the gas target leads to interaction of injected beam with gas and producing unwanted flow of electrons in accelerating channel. Occurred electrons are accelerated up to 1 MeV energy, bombard the electrodes and produce radiation. For suppressing of electrons, electrodes diaphragm with magnets was designed. Diaphragm was set on first electrode, where electrons have low (166 keV) energy. The field about 15 mT separate main beam particles and electrons on 2 components. Thus, the main beam passes freely through diaphragm and accelerates, and electrons beam, with low energy, land on the first electrode. This article shows that the setting of diaphragm with magnets conduct to ~30% decreasing of radiation dose. Also, we discussed negative sides and technical solutions of this modification, such as reducing of potential on first electrode by electrons or demagnetization magnets by the beam.
PB - JACoW
CP - Geneva, Switzerland
ER -