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Picosecond X-ray streak camera dynamic range measurement.
The Review of Scientific Instruments
|October 27, 2016
Summary
A new picosecond X-ray streak camera meets Laser MegaJoule needs. Optimal dynamic range requires slow sweeping speeds and careful high-voltage adjustments for electron throughput.
Area of Science:
- Plasma Physics
- X-ray Imaging
- Laser-Plasma Interactions
Background:
- Streak cameras are crucial for analyzing laser-induced plasma dynamics.
- The Laser MegaJoule (LMJ) facility requires advanced diagnostic tools for high-energy experiments.
Purpose of the Study:
- To develop and test a prototype picosecond X-ray streak camera for LMJ applications.
- To measure the dynamic range of the developed X-ray streak camera.
Main Methods:
- Utilized picosecond X-ray pulses generated from laser-copper target interactions.
- Measured the camera's dynamic range under varying operational parameters.
- Investigated the impact of sweeping speed and high voltage settings on electron throughput.
Main Results:
- The prototype camera was successfully developed and tested.
- A dynamic range of 100 was achieved under specific configurations.
- Slowest sweeping speeds and optimized electron throughput via high voltage were critical for reaching the target dynamic range.
Conclusions:
- The developed picosecond X-ray streak camera meets the stringent requirements of the Laser MegaJoule facility.
- Careful optimization of sweeping speed and high voltage is essential for maximizing the camera's dynamic range.
- This instrument provides a valuable tool for spatio-temporal analysis of laser-induced plasmas.
