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Title: Novel schemes for the optimization of the SPARC narrow band THz source

A pulsed, tunable, narrow band radiation source with frequency in the THz region can be obtained collecting the coherent transition radiation produced by a train of ultra-short electron bunches having picosecond scale inter-distance. In this paper, we review the techniques feasible at the SPARC-LAB test facility to produce and manipulate the requested train of electron bunches and we examine the dynamics of their acceleration and compression. In addition, we show how the performances of the train compression and the radiation intensity and bandwidth can be significantly improved through the insertion of a fourth order harmonic cavity, working in the X-band and acting as a longitudinal phase space linearizer.
Authors:
;  [1] ;  [2] ; ; ; ;  [3] ;  [4] ;  [5] ;  [6] ;  [5] ;  [7]
  1. DESY, Hamburg (Germany)
  2. INFN MI, Milan (Italy)
  3. INFN-LNF, Frascati (Italy)
  4. “Tor Vergata” University of Rome, Rome (Italy)
  5. (Italy)
  6. “Sapienza” University of Rome, Rome (Italy)
  7. ENEA C.R., Frascati (Italy)
Publication Date:
OSTI Identifier:
22483257
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCELERATION; BEAM BUNCHING; ELECTRONS; OPTIMIZATION; PHASE SPACE; PULSES; RADIATION SOURCES; TEST FACILITIES; TRANSITION RADIATION