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Size: 1040
Comment:
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Size: 2669
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| Overview of IFI was written by K. Somiya[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3537|IFI report]] = Basic Configuration = *IFI is seated on the baseplate because the beam hight of KAGRA is different from aLIGO. *Ray tracing was calculated by K. Yano [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4233|Current ray trace around the IFI]] == Parameter of IFI == * Weight : 18.1kg * Size : L=647.7mm, W=177.8mm, H=155.9mm (with bread bord) [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3538|IFI Drawing]] == Parameter of baseplate of IFI == * Weight : 26.9kg * Size : L=630mm, W=250mm, H=64.1mm [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4161|Base of the IFI Drawing]] = Current Status = * IFI was purchased from UF * IFI was completed to Assemble on the PSL table in 2015/11 * Installation was completed in 2015/11 * Alignment was completed in 2016/02 * IFI will not be suspended but directly put on the IFI table * A pair of unsuspended steering mirrors (STM) have been used for the beam centering |
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| * IFI will be purchased from UF * Assembly on the PSL table is scheduled in 2014/11 * Installation will be in 2015/3 * IFI will not be suspended but directly put on the IFI table * A pair of unsuspended steering mirrors (STM) will be used for the beam centering |
=== Pending Problems === * Total hight of IFI system ( = IFI + Baseplate) is higher than the designed beam hight by 1cm. * Is CWP2 replacement needed ? * Is install counter masses needed ? * How we test IFI in high power. |
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| *[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4822|Slide in 13th f2f meeting written by Kataoka]] *[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4542|Slide of JPS meeting in March 21st 2015 written by Kataoka]] * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3295|Slide in 11th f2f meeting written by Yano]] * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3460|measurement result in Dec.2014]] |
Input Faraday Isolator
Overview of IFI was written by K. SomiyaIFI report
Basic Configuration
- IFI is seated on the baseplate because the beam hight of KAGRA is different from aLIGO.
Ray tracing was calculated by K. Yano Current ray trace around the IFI
Parameter of IFI
- Weight : 18.1kg
Size : L=647.7mm, W=177.8mm, H=155.9mm (with bread bord) IFI Drawing
Parameter of baseplate of IFI
- Weight : 26.9kg
Size : L=630mm, W=250mm, H=64.1mm Base of the IFI Drawing
Current Status
- IFI was purchased from UF
- IFI was completed to Assemble on the PSL table in 2015/11
- Installation was completed in 2015/11
- Alignment was completed in 2016/02
- IFI will not be suspended but directly put on the IFI table
- A pair of unsuspended steering mirrors (STM) have been used for the beam centering
Pending Problems
- Total hight of IFI system ( = IFI + Baseplate) is higher than the designed beam hight by 1cm.
- Is CWP2 replacement needed ?
- Is install counter masses needed ?
- How we test IFI in high power.