Overview of focusability tests and focal spot properties achieved with different optics in B40, S20 laser room and tunnel.
Theoretical limits
Diffraction limited spot:
S20 laser room
- 2" gold OAP, pulsed laser, 33 mm beam, DM+Pharao (Oct 2020): https://drive.google.com/file/d/1B_A-63lJ0mJ0EcrZ_Mhrbp4onzRwUP8E/view?usp=sharing
- 2" dielectric OAP, pulsed laser – pending (after beam expander switch ~Mar 2022)
- 2" dielectric OAP, CW laser – pending (after beam expander switch ~Mar 2022)
S20 tunnel
- 2" gold OAP, pulsed (both SAGAs), ~38 mm beam, DM to tunnel target (Mar 2022): http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2022/10/08.03&pos=2022-03-08T21:39:01
- 2" gold OAP, CW, ~38 mm beam, DM to tunnel target (Mar 2022): http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2022/10/08.03&pos=2022-03-08T20:28:10
- 2" gold OAP, pulsed laser, ~33 mm beam, DM at flat, ghost? (Jan 2022): http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2022/03/17.01&pos=2022-01-17T14:33:12
- 2" gold OAP, pulsed laser, ~33 mm beam, DM at flat, blocking ghost (Jan 2022): http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2022/03/17.01&pos=2022-01-17T15:25:34
- 2" gold OAP, pulsed laser, ~33 mm beam, DM and Pharao (Oct 2021): http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2021/43/25.10&pos=2021-10-25T11:07:04 and https://docs.google.com/presentation/d/1fQw4JcqppA40Cn98vMotdciJC7Am5_S6/edit?usp=sharing&ouid=118129170303432857622&rtpof=true&sd=true
B40
- 2" and 3" gold OAP: https://docs.google.com/presentation/d/1tuUIZCfflAoSDZhiAJMf3CeN-27Ys1Qq/edit?usp=sharing&ouid=118129170303432857622&rtpof=true&sd=true
- 2" dielectric OAP, fibre laser, 40 mm beam (Feb 2021): https://docs.google.com/presentation/d/1_OOHMYTlKeL64F6fJoaEV1hP3KCxi3H_RZkJCY06coI/edit?usp=sharing