<> = Agenda/Minutes = [[https://zoom.us/j/203743987|Zoom Meeting]] ---------- = CRY+VIS Interface Meeting = Date : 13:30- Participants : Takahashi, Ikeda, Ohashi, Kimura, Aso, Hirata, Sato, Ushiba, Tomaru, Akutsu, Miyo [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]] == Schedule == * IX: Oplev setting will be carried out after the next week. F0 and IP were tuned. Yaw will be adjusted after rough alignment. * IY: Cryo-payload was removed on 3/11. * EX: Connection is scheduled in the next week. * EY: Cryo-payload was removed on 3/12. Cable treatment is necessary. == Status == * Corrugate tube fixing jig: The spacer is modified. They should be prepared by mid. May. * Commissioning in air: From mid. May for IX. * 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: * Overall commissioning: Schedule meeting on 3/22. * Procedure of TM height setting: == Discussion == ---------- = VIS Meeting = 14:00- Participants: Takahashi, Fabian, Hirata, Miyo, Tanaka, Sato, Washimi, Terrence, Aso == Schedule == [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/Schedule|Schedule]] * The next week * Type-A team: 3/15-16 connection of cryo-payload in EX. 3/17- go back to EY * Type-B team: 3/15-19 PR3 setting. Remedy work of IY will be postponed. == klog == '''EX''' * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16183|16183]] Cleaning and transportation of components. , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16142|16142]] IP and F0 stepper motor limit switches. , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16170|16170]] Comment , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16178|16178]] Comment , __fabian.arellano__ '''General''' * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16200|16200]] Recovery of the signal generators in Type-B and Type-Bp suspensions. , __fabian.arellano__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16234|16234]] Common Type-C(MCI,MCE,MCO,IMMT1,IMMT2) model. , __satoru.ikeda__ '''IX''' * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16185|16185]] Added MN/PF OpLev to k1visitmxp's Model file. , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16199|16199]] Setup of IP , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16118|16118]] Setup of filter chain , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16171|16171]] Comment , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16195|16195]] Comment , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16185|16185]] Added MN/PF OpLev to k1visitmxp's Model file. , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16197|16197]] Comment , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16216|16216]] Comment , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16199|16199]] Setup of IP , __ryutaro.takahashi__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16238|16238]] Comment , __ryutaro.takahashi__ '''IY''' * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16214|16214]] Preparation for disconnection of cryo-payload , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16217|16217]] Support for common Payload/Tower model files: Type-A (ITMY) is supported to TOWER_MASTER/PAYLOAD_MASTER. , __satoru.ikeda__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16249|16249]] Connection of release sensors to DGS , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting , __satoru.ikeda__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16248|16248]] Comment , __satoru.ikeda__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16214|16214]] Preparation for disconnection of cryo-payload , __ryutaro.takahashi__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16237|16237]] Comment , __ryutaro.takahashi__ '''MCF''' * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16242|16242]] MCi and MCo oplev TX replacing , __tomotada.akutsu__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16157|16157]] Investigation of IMC suspensions , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16180|16180]] Comment , __ryutaro.takahashi__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16181|16181]] Comment , __takaaki.yokozawa__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16182|16182]] Comment , __shinji.miyoki__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16198|16198]] Comment , __kouseki.miyo__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16201|16201]] Comment , __tomotada.akutsu__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16225|16225]] Comment , __kouseki.miyo__ '''PR3''' * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16239|16239]] Test of PR3 mirror pitch stability using the Donald Trump method. , __fabian.arellano__ * [[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=16204|16204]] Comment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16207|16207]] Comment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16223|16223]] Comment , __fabian.arellano__ * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16228|16228]] Comment , __fabian.arellano__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16239|16239]] Test of PR3 mirror pitch stability using the Donald Trump method. , __fabian.arellano__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16247|16247]] Comment , __fabian.arellano__ * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16246|16246]] Comment , __fabian.arellano__ This is generated by python script in /users/Miyo/dropbox/Script/scrapping/main.py. == Summary Report == === TypeA === * Disconnected the cryo-payload in IY. * Setup the F0 and tuned the IP in IX. === TypeB === === TypeBp === PR3 * At the begining of the week the IM was still touching the IRM. * First we did a health check of the IM-Y picomotor because I had the impression it had reached a limit. * We locked the BF and pushed the IRM in yaw such that the IM was hanging free. * We actuated in yaw using the picomotor and it moved freely suggesting it had not reached its limit. * With confidence in the picomotor condition we proceeded to adjust yaw and pitch until the IM became free although the OSEM flags were not at the centres of their cavities. * Measurements of IM TFs revealed the system was healthy. (IM-V TF was not measured because the SF is locked due to the plastic cover.) * '''Happily, we can consider the system to be recovered from the jammed-BF-picomotor-earthqueake event.''' * Later we moved the IM picomotors in order to move the OSEM flags closer to centers of their cavities.However, this rendered H3 out of range. * The locked theIRM and the IM and moved H3 into range, but when we released the system we realized V1 had become out of range due to a change in pitch. * We measured transfer functions with the horizontal OSEMs and they were all good. * We proceeded with the Trump method to test the pitch stability: * We carried out the procedure from the control room and used the readout from V2 and V3 (V1 out of range) and the 3D-CAD to calculate the change in pitch: '''-3.9 mrad''' ('''consistent with what was measured with an oplev when we disturbed the suspension when we glued the wire'''). * In the tunnel we carried out the procedure again and used an oplev to measure a change of '''33.4 mrad'''. '''See the videos'''. * For the same event we used the V2 and V3 OSEMs to estimate the change in pitch of the IM: '''4.1 mrad''' '''(consistent with previous measurements).''' * Today we inspected the payload visually. * We didn't find anything wrong. * Only H2 flag rotated during the Trump procedure. See pictures. === TypeC === * [Miyo] We have to resolve the picomotor range probblem before closing MCE and MCF chambers. * [Miyo] We will start the suspension commissioning work including the oplev calibration in next week. * [Takahashi] The pushing point for yaw picomotor will be extended with spacer in MCo. === Electronics === * [Takahashi] Connected the release sensors to the DGS using the exchange cables in IY. === Control === * [Ikeda] Add new RTM block of additional MN and PF OpLevs of Cryo-payload in the current RTM. * [Ikeda] ITMY is updated with new RTM. * [Ikeda] Now, the old RTM used in O3 is only installed on BS and PR3. Please see [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/RealTimeModel#RTM_Status|Wiki]] == Safety == == Discussion == == Travel Plans == The week from 3/15 * Takahashi: 3/15-18 * Sato: 3/15-19 * Hirata: 3/15-19 * Yano: 3/15-19 The week from 3/22 * Takahashi: 3/22-3/26 * Sato: 3/22-3/26 * Hirata: 3/22-3/26 * Yano: 3/22-3/26 == Next meeting == * 2021/3/19(FRI)