= MIR Meeting on 2021/01/20 18:00 - 19:00 =

Participants: Matteo, Simon, Pengbo, Kokeyama, Haoyu, Michimura, Aso, Akutsu, Marco, Marc


=== Next meeting ===
2021 Feb 3rd, 18:00 - 19:00


== Minutes ==
 1. recap on MIR activity
 1. Matteo had discussion with Shinkosha on how to proceed with future samples
  * a solution may be to extract a 1cm slice from the Sapphire-bulb and analyze it at NAOJ
  * if okay, Shinkosha proceeds with extracting a KAGRA-sized substrate
  * issue: is 1cm enough for a decent analysis? can the slice' planes be parallel enough?
 1. discussion about stress-dislocation measurement
  * recap by Marco about last meeting discussion
  * report by Simon about how to extract beta angle from NAOJ birefringence measurement
  * upgrade on the system at TAMA could be made after Feb 8. (if COVID situation relaxes)
 1. simulation status by Haoyu
  * TWE maps used to create birefringence maps
  * Zernicke residuals still present
  * will compare results with existing brirefingence maps


== Agenda ==

 * update on stress-induced birefringence in Sapphire
 * simulation status
 * new sapphire bulk search
 * meeting schedule