Differences between revisions 3 and 4
Revision 3 as of 2019-07-16 11:13:40
Size: 1210
Comment:
Revision 4 as of 2019-07-16 12:09:32
Size: 673
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
 * Zoom: Sawada, Uchiyama, Inoue, Uchiyama, Kokeyama  * Zoom: Sawada, Uchiyama, Inoue, Uchiyama, Kokeyama, Shoda
Line 9: Line 9:
=== Summary of last week ===
 * ETMY misalignment was fixed.
 * Investigation of polarization is going on.
 * We keep central area for a while and keep DRMI characterization specially for control.
 * We confirmed that we would have an engineering run on 7/13.
Line 17: Line 11:
 * 12pm-6pm
  * PEM needs ~10min after run.
  * CAL needs free swinging Michelson.
 * Michelson
 *
 * Low finesse cavity can have mode hop in anywise, whether with/without polarization issue.
  * Needs changing Gouy phase by changing PR2(Stefan).
 * Leave beam shape mystery for a while without opening chamber.
Line 23: Line 15:

 * Action items for this month
  * Investigation for shape of reflection of both ITEX and ITMY.
   * P-pol shape with PRMI lock.
   * Rotating polarization of geen.
  * P-pol or S-pol monior

  * Control signal for PRMI/DRMI with polarization.
   * Education for DRMI from specialty.
  * Y arm lock with mass lock.
  * FPMI lock.
   * noise hunting.
   * PCAL line injection.
  * IOO noise hunting.
  * Dampin test mass.
  * OMC commissioning.
  * Simulation code for astigmatisms or something.
 * 1pm meeting will be more important.
 * Commissioning leader should have the right to determine what is higher priority.

Minute of KAGRA commissioning meeting


  • Date: 2019/7/16 11:00~12:00
  • Attendance: Miyakawa, Aso, Nakano, Kozakai, Washima, Miyo, Yokozawa, Enomoto, Yamada, Stefan, Ogaki
  • Zoom: Sawada, Uchiyama, Inoue, Uchiyama, Kokeyama, Shoda


Discussion

  • Low finesse cavity can have mode hop in anywise, whether with/without polarization issue.
    • Needs changing Gouy phase by changing PR2(Stefan).
  • Leave beam shape mystery for a while without opening chamber.
  • 1pm meeting will be more important.
  • Commissioning leader should have the right to determine what is higher priority.


Others

  • Next meeting: 7/16.

KAGRA/Commissioning/Weekly/20190716/Minute (last edited 2019-07-16 16:06:18 by OsamuMiyakawa)