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

2. 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

3. 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

4. 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

5. 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

6. 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