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Title: RF Linac for High-gain FEL RF Linac

 [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: US Particle Accelerator School ; 2014-06-16 - 2014-06-20 ; Albuquerque, New Mexico, United States
Country of Publication:
United States
Particle Accelerators(43); Linear Accelerators

Citation Formats

Nguyen, Dinh Cong, Lewellen, John W. IV, and Duffy, Leanne D. RF Linac for High-gain FEL RF Linac. United States: N. p., 2014. Web.
Nguyen, Dinh Cong, Lewellen, John W. IV, & Duffy, Leanne D. RF Linac for High-gain FEL RF Linac. United States.
Nguyen, Dinh Cong, Lewellen, John W. IV, and Duffy, Leanne D. Tue . "RF Linac for High-gain FEL RF Linac". United States. doi:.
title = {RF Linac for High-gain FEL RF Linac},
author = {Nguyen, Dinh Cong and Lewellen, John W. IV and Duffy, Leanne D.},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 12 00:00:00 EDT 2014},
month = {Tue Aug 12 00:00:00 EDT 2014}

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  • A new pre-injector for the MAX-Laboratory is under design and construction. A thermionic rf gun, designed to operate at medium currents with low back bombardment power, is under construction. The gun will, via a magnetic compressor and energy filter, feed a recirculated linac consisting of two SLED-equipped structures giving 125 MeV each. The first will be delivered in 1999. The system is aimed as a pre-injector for the existing storage rings at MAX-Lab, but will also open up possibilities for a SASE FEL in the UV reaching above 100 MW below 100 run.
  • In recent years, advances in the rf gun technology have made it possible to produce small beam emittances suitable for short period microundulators which take advantage of the low emittance beam to reduce the wavelength of FELs. At the Advanced Photon Source, we are studying the design of a compact 50-MeV superconducting mm-wave linac-based FEL for the production of short wavelengths ({approximately}300 nm) to carry out FEL demonstration experiments. The electron source considered for the linac is a 30- GHz, 3 1/2-cell {pi}-mode photocathode rf gun. For cold model rf measurements a 15-GHz prototype structure was fabricated. Here we reportmore » on the design, numerical modelling and the initial cold-model rf measurement results on the 15-GHz prototype structure.« less