Differences between revisions 6 and 34 (spanning 28 versions)

Satellite Meeting on Future Upgrade of KAGRA

Date/Time/Venue

Dec. 4th (Tue) 13:30 - 17:30

Large seminar room (3201) in Subaru building (the same as the main F2F meeting)

Zoom connection: https://zoom.us/j/5045179604

Program

Time	Subject and Title	Speaker	File
13:30-13:45	Explanation of the context	Y. Aso	O
13:45-14:45	Report of past activities in Advanced R&D group
	Summary of Past Discussions on KAGRA Upgrade	Y. Michimura	(>_<)
14:45-15:00	Break
15:00-16:15	Contributed talks
10 min	R&D of 100kg sapphire crystals	E. Hirose	o
10 min	R&D of frequency dependent squeezer	Ray-Kuang Lee/NTHU	o
10 min	R&D of Newtonian noise measurement	Tomofumi Shimoda (U-Tokyo)	o
20 min	TAMA300 filter cavity exp. status	Yu-hang Zhao and Chien-Ming Wu	o
10min	EPR entanglement	K. Somiya	o
10min	Engineering management for KAGRA upgrade	Y. Aso	O
16:15-16:30	Break		x
16:30-17:30	Discussion

Minutes

Introduction by Aso

Why FPC is proposed ?
Purpose/Scope of FPC
Steps to start FPC

Summary of the past upgrade studies by Michimura

Extensive studies have already been carried out
Several options were compared
- High frequency optimized plan seems better
Candidates for short term upgrade (cheap, quick) and longer term upgrade (larger change and more expensive) were discussed

Contributed talks by various people

100kg sapphire (Hirose)
Frequency dependent squeezing (Lee)
Newtonian noise measurement (Shimoda)
TAMA300 filter cavity (Zhao, Wu)
EPR entanglement (Somiya)
Engineering management (Aso)

Discussion

What should be included in the white paper

Scientific motivation
Survey of the current technologies
- Cheap, Expensive
- Ready, Not ready
Limits of the current facility
Trade-off studies
Two plans
- Near term upgrade plan
- Longer term upgrade plan
Back up plans
R&Ds to be done
- Budget for R&D
Budget estimate
Project execution plan

Schedule for the white paper

Work in progress draft to be presented @ KIW in Feb 2019
- Get feedbacks from Virgo people
First draft to be circulated @ April 2019 F2F
Final version to be put for approval @ Aug 2019 F2F

How to proceed the discussion ?

Make a skelton of the white paper first
Dig deeper into each item with sub-groups

Other discussion

Definitions of short term and longer term upgrades
- Short term: after O4 (~ in 5 years)
- Longer term: after O5-6 ? ~ in 10 years
- This should be discussed in FPC
How to get funding should be discussed with relevant people (ICRR, senior people in collaborating countries, etc) in parallel with the white paper writing.
Need to keep ICRR in the circle.
Review (external/internal) of the white paper may be necessary before submitting to the KSC and EO for approval.
The white paper should be updated with changing environment
How RDC should select KAGRA project R&Ds before the white paper is finalized ?
- RDC may be able to make interim approvals
  - These interim KAGRA project R&Ds should be checked against the white paper once it is ready
- Should be discussed more in the KSC session.

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-Dec. 4th (Tue) 13:30 - 17:00
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-||<rowbgcolor="#E0FFFF"12%  style="text-align:center">Time ||<style="text-align:center">Subject and Title ||<24%  style="text-align:center">Speaker ||File ||
||13:30-13:45 ||Explanation of the context ||Y. Aso ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
||<rowbgcolor="#FFFFE0" rowstyle="text-align:left;      ">13:45-14:45 ||||<style="text-align:left;">'''Report of past activities''' || ||
|| ||Past studies/discussions of Advanced R&D subsystem ||Y. Michimura ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
||<rowbgcolor="#E0E0FF" rowstyle="text-align:left;       ">14:45-15:00||||<style="text-align:left;">Break|| ||
||<rowbgcolor="#FFFFE0" rowstyle="text-align:left;       ">15:00-16:30 ||||<style="text-align:left;">'''Contributed talks''' || ||
|| || || ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
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|| || || ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
|| || || ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
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||<rowbgcolor="#FFFFE0">12:30-13:45 ||||<style="text-align:center">Lunch || ||
||<rowbgcolor="#FFFFFF" rowstyle="text-align:left;       ">12:35-12:55 ||||<style="text-align:left;">''' Safety Lecture''' || ||
|| ||Safety Lecture in English  (20 min) ||Takashi Uchiyama (ICRR) ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=xxxx|x]] ||
+||<rowbgcolor="#E0FFFF"16%  style="text-align:center">Time ||<style="text-align:center">Subject and Title ||<24%  style="text-align:center">Speaker ||File ||
||13:30-13:45 ||Explanation of the context ||Y. Aso ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9376|O]] ||
||<rowbgcolor="#FFFFE0" rowstyle="text-align:left;                ">13:45-14:45 ||||<style="text-align:left;">'''Report of past activities in Advanced R&D group''' || ||
|| ||Summary of Past Discussions on KAGRA Upgrade ||Y. Michimura ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9313|(>_<)]] ||
||<rowbgcolor="#E0E0FF" rowstyle="text-align:left;                 ">14:45-15:00 ||||<style="text-align:left;">'''Break''' || ||
||<rowbgcolor="#FFFFE0" rowstyle="text-align:left;                 ">15:00-16:15 ||||<style="text-align:left;">'''Contributed talks''' || ||
||10 min ||R&D of 100kg sapphire crystals ||E. Hirose ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9363|o]] ||
||10 min ||R&D of frequency dependent squeezer ||Ray-Kuang Lee/NTHU ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9357|o]] ||
||10 min ||R&D of Newtonian noise measurement ||Tomofumi Shimoda (U-Tokyo) ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9368|o]] ||
||20 min ||TAMA300 filter cavity exp. status ||Yu-hang Zhao and Chien-Ming Wu ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9377|o]] ||
||10min ||EPR entanglement ||K. Somiya ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9365|o]] ||
||10min ||Engineering management for KAGRA upgrade ||Y. Aso ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9361|O]] ||
||<rowbgcolor="#E0E0FF" rowstyle="text-align:left;                 ">16:15-16:30 ||'''Break''' || ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=XXXX|x]] ||
||<rowbgcolor="#FFFFE0" rowstyle="text-align:left;                 ">16:30-17:30 ||||<style="text-align:left;">'''Discussion''' || ||
|| || || || ||
----
== Minutes ==
=== Introduction by Aso ===
 *  Why FPC is proposed ?
 * Purpose/Scope of FPC
 * Steps to start FPC
=== Summary of the past upgrade studies by Michimura ===
 * Extensive studies have already been carried out
 * Several options were compared
  * High frequency optimized plan seems better
 * Candidates for short term upgrade (cheap, quick) and longer term upgrade (larger change and more expensive) were discussed
=== Contributed talks by various people ===
 * 100kg sapphire (Hirose)
 * Frequency dependent squeezing (Lee)
 * Newtonian noise measurement (Shimoda)
 * TAMA300 filter cavity (Zhao, Wu)
 * EPR entanglement (Somiya)
 * Engineering management (Aso)
=== Discussion ===
==== What should be included in the white paper ====
  * Scientific motivation
  * Survey of the current technologies
    * Cheap, Expensive
    * Ready, Not ready
  * Limits of the current facility
  * Trade-off studies
  * Two plans
    * Near term upgrade plan
    * Longer term upgrade plan
  * Back up plans
  * R&Ds to be done
    * Budget for R&D
  * Budget estimate
  * Project execution plan
==== Schedule for the white paper ====
    * Work in progress draft to be presented @ KIW in Feb 2019
     * Get feedbacks from Virgo people
    * First draft to be circulated @ April 2019 F2F
    * Final version to be put for approval @ Aug 2019 F2F
==== How to proceed the discussion ? ====
  * Make a skelton of the white paper first
  * Dig deeper into each item with sub-groups
==== Other discussion ====
 * Definitions of short term and longer term upgrades
  * Short term: after O4 (~ in 5 years)
  * Longer term: after O5-6 ? ~ in 10 years 
  * This should be discussed in FPC
 * How to get funding should be discussed with relevant people (ICRR, senior people in collaborating countries, etc) in parallel with the white paper writing. 
 * Need to keep ICRR in the circle.
 * Review (external/internal) of the white paper may be necessary before submitting to the KSC and EO for approval.
 * The white paper should be updated with changing environment
 * How RDC should select KAGRA project R&Ds before the white paper is finalized ?
  * RDC may be able to make interim approvals
   * These interim KAGRA project R&Ds should be checked against the white paper once it is ready
  * Should be discussed more in the KSC session.