Control Room Overview

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How to use Guardian

Accessing to the guardian screen

Accessing to the guardian screen

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guardian_howto.png

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How to know the status of the interferometer

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screen shots

  1. Check the state of LSC_MICH. First check if the request state of LSC_MICH is OPERATION. If it is not, request OPERATION.

Screen shot

  1. If the state is READY, ENGAGE_SERVO, ENGAGE_BOOST, MICH_LOCKED, CALIBRATION_INJECTION, or ACTUATORCAL_INJECTION, the interferometer is now on the way to be OPERATION state. It will be ready soon. If it will not enter OPERATION state in a few mins, something is wrong. Call interferometer experts.
    • If it is in DOWN state, go to 3.
  2. Check the status of IMC_LOCK, VIS_BS, VIS_PR2, VIS_PR3. (Note that VIS_PRM is not used for now, so just ignore it) -- For IMC_LOCK, every thing should be green and IMC should be back automatically. If it will not come back in ~ 10 mins, call interferomter/IOO experts. -- For VIS_PR2 and VIS_BS, the state should be ALIGNED. If it is not, a notification "please reset Watch Dog!" will show up, and the state is in TRIPPED. In that case, go to the next section to know how to reset Watch Dog. -- For VIS_PR3, the state should be DAMPED. If it is not, a notification "please reset Watch Dog!" will show up, and the state is in TRIPPED. In that case, go to the next section to know how to reset Watch Dog.

How to reset Watch Dogs

0. Request LSC_MICH to be READY by Guardian.

1. Open Sitemap (from Terminal, type "mk" and press return).

2. Click VIS

3. Click the suspension of which you want to reset Watch Dog

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PRs case

4. Request SAFE by Guardian

5. Open "DETAILS" at bottom right

6. Click WATCHDOG here.

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7. Click DACKILL here.

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8. Click this button

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9. Request DAMPED. For PR2, ~ 10 seconds after the state becomes DAMPED, request ALIENED.

10. ~ 10 seconds after the suspension gets in a nominal state, request LSC_MICH to be OPERATION.

BS case

4. Request SAFE by Guardian

5. Open "Payload" at bottom right

6. Click WATCHDOG here.

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7. Click DACKILL here.

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8. Click this button

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9. Request DAMPED. For PR2, ~ 10 seconds after the state becomes DAMPED, request ALIENED.

10. ~ 10 seconds after the suspension gets in a nominal state, request LSC_MICH to be OPERATION.

basic tasks

ここから先は観測シフトの仕事を簡単にまとめたものです。まだ暫定的なメモのような状態なので、適宜アップデートして下さい。ここは分かりやすさのために日本語で書きます。余裕のある方は英語版も作って下さい。

[General]

[DGS]

[MIF]

[VIS]

[DMG]

[klog]

useful information

Abbreviation / Acronym

Meaning / Explanation

BS

Beam Splitter

CDS

DAQ

Data Acquisition

DAS

Data Analysis

DC

Direct Current

DET/Detchar

Detector Characterization

DGS

Digital System

DMG

Data Management

EPICS

Experimental Physics and Industrial Control System

EX/ETMX

X Arm End Test Mass

EY/ETMY

Y Arm End Test Mass

FCL

Facility

GAS

Geometric Anti-Spring

GIF

Geophysics Interferometer

Guardian

Automation system for interferometers

IFO

Interferometer Optics

IMC

Input Mode Cleaner

LSC

Length Sensing and Control, especially for MIF

MCi/e/o

Name of three mirrors of IMC; Input, End, and Output mirrors

Medm

GUI for dealing with EPICS

MI

Michealson Interferometer

MIF

Main Interferometer

OpLev

Optical Lever; measures angle of a mirror

OSEM

Optical Sensor and ElectroMagnet

PMC

Pre-Mode Cleaner

PR3

Type Bp’ SAS. works as the last steering mirror for MI

PSL

Pre-Stabilized Laser

SAS

Seismic Attenuation System

TM

Test Mass

VAC

Vacuum

VIS

Vibration Isolation System