NIF ReShock/Shear Photometrics Design Considerations
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
The design of the photometrics for the NIF Shock/Shear campaign was driven by three linked considerations: the backlighter (BL) material had to be chosen such that it’s He-α emission line gave high enough contrast to measure mix width and see the shock propagation in the target wall, the BL beam geometry had to give sufficient BL spot dimensions and intensity to produce a uniform He-α radiograph of the target, and the BL/pinhole system had to have a high enough resolution and signal to be able to measure the quantities of interest. The design considerations are linked such that the required contrast determines the BL material, the BL material determines what laser intensity range is need for He-α emission, and the resulting He-α emission intensity helps determine whether or not there will be sufficient signal for analysis.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1172865
- Report Number(s):
- LA-UR--15-21816
- Country of Publication:
- United States
- Language:
- English
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