The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Fleming, R.L. AU - Andrews, H.L. AU - Bishofberger, K. AU - Kim, D. AU - Lewellen, J.W. AU - Nichols, K.E. AU - Shchegolkov, D.Y. AU - Simakov, E.I. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - A Simple Variable Focus Lens for Field Emitter Cathodes J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - 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. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3677 EP - 3679 KW - cathode KW - emittance KW - focusing KW - laser KW - simulation DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPAL024 UR - http://jacow.org/ipac2018/papers/thpal024.pdf ER -