Feb. 26, 2009
Goal #1: Commission LTU, Undulator, Dump , and FEE
Goal #2: Measure and Optimize SASE FEL power at 15 Å and below
Goal #3: Setup machine for AMO experiments in August 2009 (30 Hz)
Goal #4: Finish laser-heater commissioning & evaluate µ-bunching damping
Dates: Install one undulator on Jan. 28.
Install ~18 more undulators in first 3 weeks of March.
Take x-rays into FEE after May 1, 2009.
1.
Check MPS toroid comparators across DL2, undulator, and dump, and help coordinate and commission new MPS system (J. Turner, R. Iverson).
2.
Commission undulator RF-BPMs (J. Frisch working with S. Smith and S.
Hoobler).
3.
Calibrate all BPM TMITs wrt toroids and injector (J. Turner working with S.
Smith and S. Hoobler).
4.
Steer LTU and dump trajectory to below ±0.3 mm in x and y paying attention to strong corrector settings, large BPM readings, and backwards BPMs or correctors
(R. Iverson, PE).
5.
Study 4.3-GeV focusing problem (50Q1-3 & Q5, Q6, and QA0 polynomials?) (R.
Iverson).
6.
Complete RP tests as necessary (e.g., 4.3-GeV tests?) (R. Iverson).
7.
Setup laser-heater undulator K -control PV (PE, H. Loos).
8.
Steer undulator trajectory to below ±0.1 mm in x and y paying attention to strong corrector settings, large BPM readings, and backwards BPMs or correctors (H.-D.
Nuhn, H. Loos).
9.
Launch oscillations starting in BSY and all through LTU to verify all BPMs respond properly, correctors are in right locations with proper polarities and planes, and to also verify model. (F.-J. Decker, PE).
10.
Scan energy ±1% and measure BPMDL1-X, BPMDL3-X, BPMQD-Y, and
BPMDD-Y to verify approximate dispersion and proper energy-BPM operation.
(F.-J. Decker, PE).
11.
Measure and correct DL2 x -dispersion (F.-J. Decker, PE).
12.
Setup full 6×6 longitudinal feedback (J. Wu, J. Frisch, D. Fairley).
13.
Test and release new LEM (Woodley, Iverson).

14.
Checkout all four LTU wire-scanners – scales correct, adequate signal, PMT timing, decent profile, controls function OK, excessive jitter or vibration, emittance software, etc (H. Loos, R. Iverson).
15.
Test and release new LTU matching software and match beam with QEM1-4 (H.
Loos, J. Turner).
16.
Checkout OTR30, OTR33, and OTRDMP – scale correct, adequate light, decent image, controls function OK, resolution, alignment, etc (H. Loos).
17.
Measure slice emittance on OTR33 (H. Loos, F-J. Decker).
18.
Measure slice energy spread on OTR30 (H. Loos, F-J. Decker).
19.
Measure projected energy spread and energy distribution on OTRDMP (H. Loos,
F-J. Decker).
20.
Try to measure longitudinal wakefield in undulator by looking at OTRDMP beam distribution (A. Novokhatski, J, Wu).
21.
Commission undulator BLM’s, including MPS trip levels (A. Fisher, C. Field, D.
McCormick, H.-D. Nuhn).
22.
Setup launch feedback in LTU – see PRD 1.1-304, Table 1, Item #10. (J. Wu, D.
Fairley).
23.
Checkout and setup two energy, two x, and two y LTU collimators (see PRD 1.3-
017, Table 2, for gap settings). Verify beam is reasonably centered (J. Turner).
24.
Launch oscillations through undulator using each of 33 XCORs and YCORs and verify BPMs, correctors, and model (H.-D. Nuhn).
25.
Launch oscillations through undulator using each of 33 quadrupole motions in x and y and verify quad motions, BPMs, and model (H.-D. Nuhn).
26.
Checkout and verify all controlled motions of each of 33 undulator girders – with at least one undulator installed (J. Welch, H.-D. Nuhn).
27.
Run trials of BBA for undulator and attempt to align quads and BPMs (H. Loos,
H.-D. Nuhn, PE).
28.
Pop in each of 33 BFW’s and find beam in x and y, eventually leaving undulator at each “found” location. As lower priority, use data to measure beam size and calculate emittance (H. Loos, H.-D. Nuhn).
29.
Finish laser heater commissioning and launch µ-bunching study (PE and all).
30.
Checkout, verify, and possibly upgrade YAGXRAY screen (J. Frisch).
31.
Coordinate TLD exchange program for monitoring undulator dose (H.-D. Nuhn).
32.
Coordinate undulator exchange program for monitoring damage (H.-D. Nuhn).
33.
Run partial trials of K-measurement procedure where possible (J. Welch).
34.
Run partial trials of FEL gain measurement procedure where possible (D. Ratner).
35.
Run partial trials of undulator trajectory re-pointing (H.-D. Nuhn, PE).
36.
Revive OTR_TCAV and continuous bunch length measurement scheme, assuming COTR is now suppressed by heater (J. Turner).
37.
Study if slow launch feedback is needed in undulator (J. Wu, H.-D. Nuhn, PE).