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

Document #:

JGW-P1809347-v4

Document type:

P

Submitted by:

Koki Okutomi

Updated by:

Koki Okutomi

Document Created:

30 Nov 2018, 11:53

Contents Revised:

09 Jan 2019, 10:27

DB Info Revised:

09 Jan 2019, 10:28

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/7s15zrzwybvw11l/phd_main_v4.pdf?dl=0

Status: (last update: 1/9)
Abstract (60%)
Chapter 1. Introduction (80%)
Chapter 2. Vibration isolation system (80%)
Chapter 3. KAGRA Type-A suspension (95%)
- missing: digital system, BF LVDT
Chapter 4. Control design (70%)
- missing: section "1/e decay time reduction"
Chapter 5. Installation (5%)
- 期限までに書き終わる見込みなし、もはや再提出か修正期間まで後回し
Chapter 6. Performance test of Type-A tower (100%)
- First draft completed
Reference (20%)

Files in Document:

• phd_main_v4.pdf (22.7 MB)

Topics:

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

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
v3: Chapter 1 (target and outline) and chapter 3 (cryogenic payload) are progressed
v4: Abstract added, Chapter 3 (requirements) and references are progressed