Differences between revisions 5 and 8 (spanning 3 versions)

ISC Meeting for ASC Strategies 2021/08/16 13:00 - 15:00

Participants:

TBD

Minutes

External review next week! August 24, 2021 22:00-0:00 (JST)
Requirements for local damping summarized
- ITMs and ETMs (Type-A): <240 um/sec, <0.1 urad RMS
- BS (Type-B): <1.6 um/sec, <1 urad RMS
- SRs (Type-B): <0.44 um/sec, <1 urad RMS
- PRs (Type-Bp): <73. um/sec, <1 urad RMS
- References:
  - K. Okutomi PhD thesis (Table 3.5) JGW-P1809347
  - T. Sekiguchi PhD thesis (Table 5.2) JGW-P1504155
  - Y. Michimura et al (Section 6) Classical and Quantum Gravity 34, 225001 (2017)
Possibility of shortening Xarm and Yarm commissioning?
- http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/MIF/ExternalReview2021#agenda2
- Latest schedule: https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9209
- Strategy for the arm cavity commissioning while the central area is open
  - Should we adjust the position of the PR2 and PR3 to improve the mode matching to the arms at Xarm/Yarm commissioning periods? Or after the center area is evacuated?
What we want to ask the reviewers?
IMC ASC report? (Kenta, Chiaki)

KAGRA/subgroup/ifo/MIF/Minutes20210816 (last edited 2021-08-16 15:07:16 by YutaMichimura)

-  ⇤ ← Revision 5 as of 2021-08-15 08:43:15 → 
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+   ← Revision 8 as of 2021-08-15 09:45:39 → ⇥
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 Line 17:
+ * Requirements for local damping summarized
  * ITMs and ETMs (Type-A): <240 um/sec, <0.1 urad RMS
  * BS (Type-B): <1.6 um/sec, <1 urad RMS
  * SRs (Type-B): <0.44 um/sec, <1 urad RMS
  * PRs (Type-Bp): <73. um/sec, <1 urad RMS
  * References:
   * K. Okutomi PhD thesis (Table 3.5) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=9347|JGW-P1809347]]
   * T. Sekiguchi PhD thesis (Table 5.2) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=4155|JGW-P1504155]]
   * Y. Michimura et al (Section 6) [[https://doi.org/10.1088/1361-6382/aa90e3|Classical and Quantum Gravity 34, 225001 (2017)]]
-Line 20:
+Line 29:
-  * Strategy for the arm cavity commissioning while the central area is open?
 * What do we want to ask to the reviewers?
+  * Strategy for the arm cavity commissioning while the central area is open
   * Should we adjust the position of the PR2 and PR3 to improve the mode matching to the arms at Xarm/Yarm commissioning periods? Or after the center area is evacuated?
 * What we want to ask the reviewers?