What am I working on… H. Loos 08/02/2010

TCAV Bunch Length Measurements Matlab Machine Model Projects TCAV Bunch Length Measurements Matlab Machine Model FACET Bunch Length Monitor THz Generation Simulation Software Support existing LCLS Matlab HLA

TCAV Bunch Length Measurements Use wires in L3 for semi-invasive measurement Calibration of CER bunch length monitor Potential with PAU to do measurement in one scan Add tomography for y-z phase space BLM Calibration On/Off Simultaneously Ultra-short < 10 fs

Matlab Machine Model First developed to simulate injector for emittance measurement code Subsequently used in BC1 and LTU-Dump to get fast and accurate machine model for BBA and other applications Now helpful as cross-check for XAL (almost) no Aida and no Oracle needed LTU model < 0.7 s (XAL/Aida 0.9 s R & Twiss) Simulate LCLS for HLA development Extend to full machine, include accelerating parts Do LEM calculation R-matrix A-B only compute relevant machine sections Full model < 2.1 s, 1 s for //TACT (XAL/Aida 1.1 s R & Twiss) Name service to find devices within specific regions based on micro & unit number Use for BPM display, z-plot, Matlab LEM

FACET Bunch Length Monitor Coordinate APE effort BLM efficiency simulations BLM Design Use fixed radiator Diamond window & Si beam splitter for OTR & THz Fixed Foil Pyro Detector CCD Camera Diamond Window Si Beam Splitter e-Beam

THz Simulation Software Calculate THz emission and transport based on Gauss-Laguerre modes Compute temporal distribution of electric field Added Finite electron beam size Multiple radiation sources Work on Documentation Adding z-field Improving on SVE approximation Implementing wave guide modes More optical elements