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| Topics | Notes |
|---|---|
| HE-LP f/# | MEC larger than Omega and Janus. X-ray source can be made smaller, so for a given laser energy, we can get more condensation and still have a valid experiment. F/# of 3.5 currently, half of what Omega uses. Lenses can be inserted in order to achieve smaller spots. M. Martinez - need suite of spot sizes to design to? Need to access higher pressures with flatness we need. More difficult configuration changes might be necessary. Port size for single vs. not to preclude port size for re-entrant quad. M. Greenberg suggests assuming a single beam for now. K. LaFortune - hot electron limit? Maybe use hot electron limit as a bound for design purposes? E. Gaultier Galtier - How to resolve contradicting requirements between FES and NNSA? M. Martinez - MEC-U leadership team would need to resolve. |
| Cavern Size | 60' is the width limit for the tunnel. |
| RR-SP Beam Size at OAP | Where are we? Drives magnification of the telescope. Need TCCB. At CD-1, 1e-4 (not well defined). Optics and transport components were very large, so S. Yang and M. Greenberg investigated a smaller beam size. Spatial strehl 0.4. Smaller size results in higher fluence on BT optics, but should still be tolerable (lower than fluence on first OAP of relay telescope). C. Hardin - how do we get to the point where we feel risk of contamination is acceptable? S. Yang will have a number to propose in a week. M. Martinez - there may be other impacts such as pointing stability. How much benefit gained for mechanical (cost/benefit)? |