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A Magnetic Transport Middle Eastern Positron Beam |
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| Authors: | I.Y. Al-Qaradawi D.T. Britton D. Abdulmalik |
| Affiliation: | a Physics Program, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar b Department of Physics, University of Cape Town, Rondebosch 7701, South Africa c Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India |
| Abstract: | A magnetically guided slow positron beam is being constructed at Qatar University and is currently being optimised for regular operation. This is the first positron beam in the Middle East, as well as being the first Arabic positron beam. Novel features in the design include a purely magnetic in-line deflector, working in the solenoid guiding field, to eliminate un-moderated positrons and block the direct line of sight to the source. The impact of this all-magnetic transport on the Larmor radius and resultant beam characteristics are studied by SIMION simulations for both ideal and real life magnetic field variations. These results are discussed in light of the coupled effect arising from electrostatic beam extraction. |
| Keywords: | 78.70.Bj 79.20.Mb |
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