[Thesis] Development of 13.5-meter-tall Vibration Isolation System for the Main Mirrors in KAGRA

Document #:

JGW-P1809347-v2

Document type:

P

Submitted by:

Koki Okutomi

Updated by:

Koki Okutomi

Document Created:

30 Nov 2018, 11:53

Contents Revised:

26 Dec 2018, 18:53

DB Info Revised:

26 Dec 2018, 18:53

Abstract:

The PhD thesis (deadline: Jan. 10, 2019)
**Comments are welcome!!** -> koki.okutomi@nao.ac.jp
You can put online comments on the shared pdf in Dropbox -> https://www.dropbox.com/s/uq5ewssxbpxoy9y/phd_main_v2.pdf?dl=0

Status: (last update: 12/26)
Chapter 1. Introduction (60%)
Chapter 2. Vibration isolation system (80%)
Chapter 3. KAGRA Type-A suspension (80%)
- missing: cryogenic payload, digital system, BF LVDT
Chapter 4. Control design (60%)
- missing: section "1/e decay time reduction"
Chapter 5. Installation (5%)
- Almost blank...
Chapter 6. Performance test of Type-A tower (100%)
- First draft completed
Reference (5%)
- many missing links and references

Files in Document:

• phd_main_v2.pdf (22.3 MB)

Topics:

• Detector:Suspensions
• Detector:Seismic Isolation
• Management:Thesis
• Activity:KAGRA

Authors:

• Koki Okutomi

Notes and Changes:

v1: Chapter 6 (core part of this study) draft completed
v2: sections in chapter 2 are progressed, comments reflected