First Test of The Imperial College Gabor (Plasma) Lens prototype at the Surrey Ion Beam centre
Author(s)
Posocco, PA
Pozimski, JR
Xia, Y
Merchant, M
Type
Conference Paper
Abstract
The first plasma (Gabor) lens prototype operating at high electron density was built by the Imperial College London in 2015. In November 2015 the lens was tested at the Ion Beam Centre of the University of Surrey with a 1 MeV proton beam. Over 500 snapshots of the beam hitting a scintillator screen installed 0.5 m downstream of the lens were taken for a wide range of settings. Unexpectedly, instead of over- or underfocusing the incoming particles, the lens converted pencil beams into rings. In addition to the dependence of their radius on the lens settings, periodic features appeared along the circumference, suggesting that the electron plasma was exited into a coherent off-axis rotation. The cause of this phenomenon is under investigation.
Date Issued
2016-06-30
Date Acceptance
2016-01-01
Citation
Proceedings of the 7th International Particle Accelerator Conference (IPAC 2016), 2016, pp.1598-1600
ISBN
978-3-95450-147-2
Publisher
Joint Accelerator Conferences
Start Page
1598
End Page
1600
Journal / Book Title
Proceedings of the 7th International Particle Accelerator Conference (IPAC 2016)
Copyright Statement
© 2016 The Author(s). CC-BY-3.0.
License URL
Sponsor
Medical Research Council (MRC)
Grant Number
MC_PC_13064
Source
7th International Particle Accelerator Conference (IPAC 2016)
Publication Status
Published
Start Date
2016-05-08
Finish Date
2016-05-13
Coverage Spatial
Busan, South Korea