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Optimization of the LCLS Single Pulse Shutter. Research Advisor: Dr. FRITZ Participant: Solomon Adera. What is a Pulse Picker? separates a single pulse. reduces the repetition rate of the LCLS pulse train from 120 Hz (source) to 0 – 10 Hz. - PowerPoint PPT Presentation
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Optimization of the LCLS Single Pulse Shutter
Research Advisor: Dr. FRITZ
Participant: Solomon Adera
What is a Pulse Picker?separates a single pulse.
reduces the repetition rate of the LCLS pulse train from 120 Hz (source) to 0 – 10 Hz.
should be aligned with high precision with the incoming beam.
120 Hz X-ray source
The purpose of this project isdynamic aperture to ~ 4 mm open/close window time ~ 12 ms
Inclination (deg) Aperture (mm)
Exposure Time (ms)
Static Dynamic
6.7 3.1 1.5 7.3
8.4 3.8 2.4 6.7
10.2 4.6 3.3 6.4
11.3 5.1 2.4 5.8
11.9 5.5 3.0 3.8
12.7 5.8 3.0 3.8
0
1
2
3
4
5
6
7
6 8 10 12 14
Inclination (deg)
Ap
ertu
re (
mm
)
Static
Dynamic
0
1
2
3
4
5
6
7
8
6 7 8 9 10 11 12 13 14
Inclination (deg)
Exp
osur
e Ti
me
(ms)
Shutter Frequency (Hz) Exposure Time (ms) Dynamic Aperture (mm)
1 3.8 3.0
3 4.0 2.7
5 4.0 2.7
7 4.0 2.9
9 4.0 2.9
10 4.0 2.6
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 2 4 6 8 10
Frequency (Hz)
Exp
osu
re t
ime
(ms)
0.0
1.0
2.0
3.0
4.0
5.0
0 2 4 6 8 10 12
Frequency (Hz)
Dyn
amic
ap
ertu
re (
mm
)
Does freq. affect to and aperture?
Acknowledgement
• DOE
• SLAC/SULI
• Office of Science
• My mentor David Fritz.
• Also Eliazar Ortiz and Marc Campell
• Steve Rock