Light sources for oplevs

Serial#

ICRR asset track#

Status

203245

IMMT1 (confirmed by Akutsu on 20190801); degrading, halved in 7200 hours.

203246

PRM (confirmed by Akutsu on 20190801); degrading, halved in 7200 hours. --> Detached (20190918); but it is just halved, so|among these sources it can be still usable??? Anyway it is now stocked tetatively.

203247

Stocked in a box at Xend; had been used for iKAGRA-Xend. (20190731 confirmed) --> Took it out to send back to the company according to our agreement (20200109)

203248

Stocked in a box at Yend; had been used for iKAGRA-Yend. (20190731 confirmed) --> Took it back; to be sent to the manufacture (20210531)

203249

SR2; degrading; halved in 4800 hours.

203250

[Detached] MCo (halved at ~8400 hours)-> Detached (20180301) -> Repaired one is delivered (20190411)

203251

[Detached (on 20190801) and replaced] old IMMT2; degrading...

203252

[Detached (on 20190801) and replaced] old PR2; degrading. Halved in 7200 hours.

203253

[Detached] MCi (halved at ~6000 hours) -> Detached (20181212) -> Repaired one is delivered (20190411)

203255

EY Test Mass oplev; suspect degrading. -> Detached and stocked in the center (20200109)

203256

[Detached] MCe (halved at ~4800 hours??) -> Detached (20181212) -> Repaired one is delivered (20190411)

203258

EX Marionette oplev; suspect degrading. -> Detached and stocked in the center (20200109)

203259

BS; degrading. Halved in 10800 hours

203262

Stocked at Mitaka (as of 20190729)

203263

[Detached] old PR3; detached. See here and here

Serial#

ICRR asset track#

Status

225022

IY Test Mass oplev (checked by Yamada on 20190719) --> But it was installed at IX!! (checked by Akutsu on 20190719) --> Detached on 20190807 and stocked.

228141

Stocked (20190730 confirmed) -> Installed at ITMX (20190807)

228142

Stocked at the field out of the box in the IYA clean booth (20190730 confirmed) -> Took it out to send back to the company according to our agreement (20200108)

228143

Stocked (20190730 confirmed) -> Took it out to send it back to the company according to our agreement (20200108)

228144

Stocked (20190730); firstly I (Akutsu) happened to find it was left at the entrance of the IXC booth for some reason... --> Installed at PRM (20190918)

228145

IX Marionette oplev (but Maybe IY MN oplev)-> IXC clean booth(Used for MN oplev) -> IXC area

228146

SR3; degrading. Halved in 7200 hours.

228147

Installed at MCo (20180301). So far it is ok (20190718).

228148

IX Test Mass opLev (but may be IY TM oplev); suspect degrading!

228151

EY Marionette oplev -> EYC clean booth(Used for MN oplev) -> IXC area -> Moved from IXC area to EYC TM oplev

228153

IY Marionette oplev (but maybe IX MN oplev) -> IYC clean booth(Used for MN oplev) -> IXC area

228154

EX Test Mass oplev; suspect degrading! --> Detached and stocked in the center (20200109)

228155

Installed at MCe (20181212). Not so clear as that of MCi, but this is also getting degraded.

228158

SRM; degrading. Halved in 7200 hours.

228160

Installed at MCi (20181212). Note: judging from the trend monitor, even though it was replaced with those newly purchased in FY2016, it got degraded.

Serial#

ICRR asset track#

Status

242770

Installed at IMMT2 (20190801)

242771

Installed at PR2 (20190801)

242772

Installed at PR3 (20190422)

Serial#

ICRR asset track#

Status

242767

(Free exchange)

Stocked at Mozumi (20191218) -> Installed at EY test mass (20200109)

242768

(Free exchange)

Stocked at Mozumi (20191218) -> Installed at EX test mass (20200109)

242769

(Free exchange)

Stocked at Mozumi (20191218) -> Installed at EX marionette (20200109) -> IXC area -> Moved from IXC area to IMMT1 TM oplev