IPAC2018 - List of Authors (Simpson, R.N.)

Paper	Title	Page
TUPMK011	Single Ring Permanent Magnet Lens	1513
	K. Jayamanna, R.A. Baartman, Y. Bylinskii, T. Planche TRIUMF, Vancouver, Canada M. Corwin UW/Physics, Waterloo, Ontario, Canada R.N. Simpson UBC, Vancouver, B.C., Canada
	Funding: TRIUMF receives its funding from the National Research Council of Canada. A permanent magnet lens has been designed to be a non-powered alternative to solenoids for low energy beam transport. The lens consists of a single ring of 12 sectors, each sector with poles directed inward. This forms an axial field that reverses sign at the midpoint, somewhat like two opposing short solenoids. It is similar to the Iwashita lens* but consists of only one ring, not two. A prototype lens optimized to decrease the magnetic material required while also reducing aberration, has been built and tested for a 25 keV H-minus beam. Emittance figures measured downstream of the lens are compared with theory. * Y. Iwashita, "Axial Magnetic Field Lens with Permanent Magnet", Proc. PAC 1993, p.3154.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-TUPMK011
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Paper

Title

Page

Single Ring Permanent Magnet Lens

1513

K. Jayamanna, R.A. Baartman, Y. Bylinskii, T. Planche
TRIUMF, Vancouver, Canada
M. Corwin
UW/Physics, Waterloo, Ontario, Canada
R.N. Simpson
UBC, Vancouver, B.C., Canada

Funding: TRIUMF receives its funding from the National Research Council of Canada.
A permanent magnet lens has been designed to be a non-powered alternative to solenoids for low energy beam transport. The lens consists of a single ring of 12 sectors, each sector with poles directed inward. This forms an axial field that reverses sign at the midpoint, somewhat like two opposing short solenoids. It is similar to the Iwashita lens* but consists of only one ring, not two. A prototype lens optimized to decrease the magnetic material required while also reducing aberration, has been built and tested for a 25 keV H-minus beam. Emittance figures measured downstream of the lens are compared with theory.
* Y. Iwashita, "Axial Magnetic Field Lens with Permanent Magnet", Proc. PAC 1993, p.3154.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-TUPMK011

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)