<> = Agenda/Minutes on 2021/2/19 = [[https://zoom.us/j/203743987|Zoom Meeting]] = CRY+VIS Interface Meeting = 13:30-14:10 Participants: Takahashi, Miyo, Aso, Sato, Hirata, Ikeda, Ushiba, Tomaru [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]] * Schedule for IX: Released on 2/18. BF was overload. * Schedule for IY: Disconnection is scheduled on 3/11. * Schedule for EX: Connection is scheduled in the week of 3/15. * Corrugate tube fixing jig: Re-measurement is planed in 2/26-3/1 at IYV. * Commissioning in air: Commissioning of IX will be started. Other schedule has not been decided yet. * Commissioning in vacuum: * Acceptance check: Cryo-payload in IX/EX and Type-A tower in EY/IX are on going. * PF actuator: Not evaluated in IX, but after the commissioning for suspension. * Jig for FC painting: Assembling. * Overall commissioning: To be considered about personnel. = VIS Meeting = 14:00-15:00 Participants: Takahashi, Miyo, Aso, Sato, Hirata, Ikeda, Ishizaki, Sugiyama, Terrence, Fabian, Tanaka == Progress report == === Schedule === {{http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210219?action=AttachFile&do=get&target=vis_gant_0219.png|vis_gant+0219|width="1000"}} [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|JGW-L2011475-v26]] === General === '''General''' Summary: * [Ikeda] Investigation of the cable length for network cable and temperature control in center are was done. Investigation for both end station was not. [1,2] * [Miyo] Automation script to make the foton files was made[3]. In this week I reproduce the OSEMINF foton file for all Type-Bp suspension by suing the script. This script will help us to avoid human error. klog: 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15737|15737]] We investigated the network connection. , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16028|16028]] Comment, __satoru.ikeda__ 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16036|16036]] Cabling for temperature control equipment , __satoru.ikeda__ 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16038|16038]] Initialize the OSEMINF filters for all Type-Bp suspensions , __kouseki.miyo__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16040|16040]] Comment, __kouseki.miyo__ === Type-C === '''MCF''' Summary: * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16041|16041]] Recovery of IMC suspension , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16049|16049]] Comment, __naohisa.satou__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16041|16041]] Recovery of IMC suspension , __ryutaro.takahashi__ === Type-A === '''EY''' Summary: * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15993|15993]] Setup of F2 , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16023|16023]] Comment, __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16034|16034]] Comment , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16050|16050]] Comment , __ryutaro.takahashi__ '''IX''' Summary: * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16055|16055]] Setup of BF with the released cryo-payload , __ryutaro.takahashi__ === Type-Bp === '''PR2''' Summary: [Miyo] I connected the cables for PRM minirack because these had been disconnected from Fujimi-sangyo clean work. * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16054|16054]] PR2 minirack is moved to 2nd floor , __kouseki.miyo__ '''PR3''' Summary: === Type-Bp === * After the release of the jammed picomotor, Ikeda-san moved back the sliding mass but he was unable to recover the same orientation of the IM according to the OSEMs. Pitch and were ended up with different values. * The transfer functions showed an unhealthy system. * Before doing visual inspection of the IM I moved IM-Y to zero from 1.78 mrad. However, while opening the chamber (cloth covers) it moved to about -500 urad. Moreover, during subsequent work it went to -2.3 mrad and it's been stable there. * A few OSEM flags seem to be touching the OSEM bodies. Their positions are consistent with the large amount of yaw measured. * About cables: * Cables from the IM touch cables from the IM. (Lilkely not good but not too bad.) * Cables from the IRM touch cables from the IRM. (Lilkely not good but not too bad.) * A cable from the BF is touching the BF Damper. * A cable from the BF Damper is touching the security structure before it's clamping point on the security structure. * We provided more slack to those cables by improvising a additional clamping point on the securuty structure. This might have improved the situation of H1 OSEM flag but it did not solve the overall problem. * There are some cables which are dangerously close to touching other cables. * Today we assesed again the position of the OSEM flags. * What do do? * Maybe we should move the BF picomotor again. * Adjust the tilt of BF by putting temporary ballast masses (in places yet to be decided) to see if the IM is released. * Move OSEM panels? * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15889|15889]] Traverser motor test and cabling. , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16027|16027]] Comment, __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16024|16024]] Comment, __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16026|16026]] Comment , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16032|16032]] Comment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16043|16043]] Comment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16052|16052]] Comment , __fabian.arellano__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16056|16056]] Comment , __fabian.arellano__ '''PRM''' Summary: * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16048|16048]] Operation check of Picomotor of PRM IM and BF , __satoru.ikeda__ === Type-B === '''SR3''' Summary: * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|15963]] IM ballast mass adjustment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16009|16009]] Comment, __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16007|16007]] Ballast mass adjustment on top of BF , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16018|16018]] Comment, __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16035|16035]] Comment , __fabian.arellano__ === Electronics (Tanaka) === * New combiner circuit was delivered to Kamioka. It should be evaluated at the site. === Control (Miyo) === == Towards O4 == * Type-B/Bp remedy work is on going. * Installation of Type-A is on going in EY. * Schedule. * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|Chart]] * Procedure documents. * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5500|Type-A tower installation]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11598|Limit switches]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11520|Limit switch connecting guide]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11978|Replacement of TF blades]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11878|Wire gluing in PR3]] * [[https://onedrive.live.com/?authkey=!AOLVVVKJ_Zpn-2c&cid=1447B05D5B571A84&id=1447B05D5B571A84!26691&parId=1447B05D5B571A84!26683&o=OneUp|Type-B remedying work]] * Criteria in the acceptance test. * [[https://www.dropbox.com/s/6bv15yy6hg0wn40/Acceptance%20Test%20Documentation.docx?dl=0|Inspection document (sample)]] == Safety == == Discussion == * When will we do the recovering work for type-Bp suspensions?: Type-B team can go back to Type-Bp suspension after the work in EX. * Cabling style of the thermisteos is reviewed by SEO?: Ask Miyoki-san. == Travel Plans == The week from 2/22 * Takahashi: 2/23-2/28 * Sato: 2/23-26 * Hirata: 2/23-26 * Yano: 2/23-26 The week from 3/1 * Takahashi: 3/1-5 * Sato: 3/1-5 * Hirata: 3/1-5 * Yano: 3/1-5 == Next meeting == * On 2020/2/26(Fri)