| Title |
A Simple Variable Focus Lens for Field Emitter Cathodes |
| Authors |
- R.L. Fleming, H.L. Andrews, K. Bishofberger, D. Kim, J.W. Lewellen, K.E. Nichols, D.Y. Shchegolkov, E.I. Simakov
LANL, Los Alamos, New Mexico, USA
|
| Abstract |
We present the design for a simple, variable-focus solenoidal lens with integrated emittance filtering. The design was developed as a first-iteration injection optics solution for transport of a beam from a field-emitter cathode into a dielectric laser accelerator structure. The design is easy to fabricate and, while based on permanent magnets, can readily be modified to allow for remote control of the focal length. The emittance is controlled via selection of collimating irises. The focal length can be changed by altering the spacing between two permanent ring magnets. Results from fabrication and initial testing will be presented.
|
| Funding |
Los Alamos National Laboratory LDRD Program |
| Paper |
download THPAL024.PDF [1.507 MB / 3 pages] |
| Export |
download ※ BibTeX
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※ EndNote |
| Conference |
IPAC2018, Vancouver, BC, Canada |
| Series |
International Particle Accelerator Conference (9th) |
| Proceedings |
Link to full IPAC2018 Proccedings |
| Session |
MC7 Poster Session |
| Date |
03-May-18 09:00–12:00 |
| Main Classification |
07 Accelerator Technology |
| Sub Classification |
T31 Subsystems, Technology and Components, Other |
| Keywords |
cathode, emittance, focusing, laser, simulation |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editors |
Shane Koscielniak (TRIUMF, Vancouver, BC, Canada); Todd Satogata (JLab, Newport News, VA, USA); Volker RW Schaa (GSI, Darmstadt, Germany); Jana Thomson (TRIUMF, Vancouver, BC, Canada) |
| ISBN |
978-3-95450-184-7 |
| Published |
June 2018 |
| Copyright |
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