NDLI: Microwave ion source and beam injection for an Accelerator-Driven Neutron Source

Content Provider	IEEE Xplore Digital Library
Author	Vainionpaa, J.H. Gough, R. Hoff, M. Kwan, J.W. Ludewigt, B.A. Regis, M.J. Wallig, J.G. Wells, R.
Copyright Year	2007
Description	Author affiliation: LBNL, Berkeley (Vainionpaa, J.H.; Gough, R.; Hoff, M.; Kwan, J.W.; Ludewigt, B.A.; Regis, M.J.; Wallig, J.G.; Wells, R.)
Abstract	An over-dense microwave driven ion source capable of producing deuterium (or hydrogen) beams at 100-200 $mA/cm^{2}$ with an atomic fraction > 90% was designed as a part of an Accelerator Driven Neutron Source (ADNS). The ion source was tested with an electrostatic low energy beam transport section (LEBT) and measured emittance data was compared to PBGUNS simulations. In our design a 40 mA $D^{+}$ beam is produced from a 6 mm diameter aperture using a 60 kV extraction voltage. The LEBT section consists of 5 electrodes arranged to form 2 Einzel lenses that focus the beam into the REQ entrance. To create the ECR condition, 2 induction coils are used to generate a -875 Gauss magnetic field on axis inside the source chamber. To prevent HV breakdown in the LEBT, a magnetic field clamp is necessary to minimize the field in this region. The microwave power is matched to the plasma by an autotuner. A significant improvement in the atomic fracion of the beam was achieved by installing a boron nitride liner inside the ion source.
Starting Page	1745
Ending Page	1747
File Size	376480
Page Count	3
File Format	PDF
ISBN	9781424409167
DOI	10.1109/PAC.2007.4440884
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ion sources Particle beams Ion beams Acceleration Neutrons Atomic beams Magnetic fields Deuterium Hydrogen Atomic measurements
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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