Author: Murokh, A.Y.
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MOPB081 Sub-Picosecond Shot-to-Shot Electron Beam and Laser Timing Using a Photoconductive THz Antenna 243
 
  • E.J. Curry, P. Musumeci
    UCLA, Los Angeles, California, USA
  • B.T. Jacobson, A.Y. Murokh
    RadiaBeam, Santa Monica, California, USA
 
  Temporal synchronization systems, which measure electron beam time of arrival with respect to a laser pulse, are critical for operation of advanced laser-driven accelerators and light sources. State-of-the-art synchronization tools, relying on electronic e-beam response and photodetector laser response are limited to few GHz bandwidths in most practical configurations. This paper presents a temporal diagnostic instrumentation based upon a photoconductive THz antenna, which could offer an inexpensive and user friendly method to provide shot-to-shot relative time of arrival information with sub-picosecond accuracy. We describe the overall instrument design and proof-of-concept prototype results at the UCLA PEGASUS facility.  
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TUPB085 Multi-Diagnostic Transverse Profile Monitor Chamber for Extreme Ultraviolet Lithography 554
 
  • T.J. Campese, R.B. Agustsson, M.A. Harrison, B.T. Jacobson, A.Y. Murokh, A.G. Ovodenko, M. Ruelas, H.L. To
    RadiaBeam, Santa Monica, California, USA
  • M.G. Fedurin, I. Pogorelsky, T.V. Shaftan
    BNL, Upton, Long Island, New York, USA
 
  Funding: DOE SBIR Grant No DE-SC0007703
RadiaBeam Technologies has developed a compact transverse beam profile measurement system for the Extreme Ultraviolet Lithography (EUL) experiment at the Brookhaven National Laboratory-Accelerator Test Facility (BNL-ATF). The EUL experiment requires fine e-beam and laser alignment across multiple passes. To accomplish this, the system consists of four profile monitor diagnostics: Interaction Point (IP), upstream, downstream, and a sub-micron resolution diagnostic 11.5 mm downstream of the IP. Care was taken in the design to minimize footprint, avoid possible diagnostic collisions, and maximize ease of assembly and alignment. This paper will review the requirements for the dimensional and optical constraints and solutions for this experiment.
 
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