= VIS Meeting on 2015/12/18 = 2015/12/18 13:30 - Kamioka TV conference room + SeeVogh Participants: Joris, Fabian, Hirata, Mark, Fujii, Shoda, Okutomi, Akutsu, Tatsumi, Raffaele, Takahashi == Schedule == * Schedule status (Aso) * Latest schedule chart * PR2 preparation may take much longer * Need to consider a possibility of installing an ETM first. == PR == * Test Hanging Status (Takahashi) * Installation into vacuum * Removed the galled jacks. Used the crane to gently sit the suspension on the frame. * Two IM OSEM flags were broken. Taken out. * Now the suspension is freely hanging. * Blowing test * Suspension was fine. * The interface plate was not easily accessible with the air gun. * Hammering test * Lowest resonance ~ 15Hz * '''ATC people wants to have the results and the test condition (Takahashi) ''' * Cabling * All the cables are connected. Checked the connection except for the traverser. * Used cable ties to fix the cables on the ceiling of the clean booth. * Connecting the picomotor driver to the network for remote control * EQ stop release * Leveled the IM * BF tilt seems to be fine * OpLev for PR3 * Pillars were set up. * View ports are there. * QPD preparation is the remaining thing. Will try next week. * PR2 Status (Mark, Fabian) * Collected screws * RM carriage assembled * RM assembled * IM is on the frame. Started alignment. * What can we do before the PR2 arrives * Preparation of the flags * Sand the Ni-plating on the magnets in Mitaka on Monday (Fabian) * Glue the flags on Tue * __'''Need to order spare flag bases: 6 of them (Takahashi) -> Asking quotation (12/21) '''__ * We need to secure things for water using Sunoko (duckboard). * Location of the EQ stop pillars (Takahashi) * __'''Takahashi will tell Hirata the proper locations of the pillars. -> Suggested location is indicated in the assy drawings. '''__ * Digital System (Okutomi, Fujii) * Created a copy of PR3 model for PR2. * BF Optimal Weight (Takahashi) * Check the optimal load for the ETM BFs at the ATC: Need to be done before the end of Jan. __'''Arrange with ATC people (Takahashi) -> not yet. '''__ * Balast mass design: '''Fabian will talk with Hirata on Monday. ''' * Traverser actuation check (Shoda) * Need to check the condition of the traverser. '''Shoda will call Uraguchi-san from the site on Mon. and ask for his instruction on how to check the traverser. ''' * Cabling is now done. We can test it. * Traverser stop mechanism * Procurement status (Takahashi): Parts were delivered. '''Clean the parts on Monday (Hirata). ''' * Clean work procedure * Need to check with Miyoki-san when the clean suits will be delivered (Aso) -> 1/15 * Ask Hirose-san about better wiping cloths (Aso): Texwipe Vectra Alpha 10 or TX8410. Asking if he has enough or we should order them -> Yes we can use them. '''Will order more (Aso)''' * KAGRA should have a special meeting for clean requirements: Aso had a meeting with Saito-san and Hirose-san. But the meeting was interrupted by a car accident. '''Will propose another meeting. ''' * PR CAD model and assembly drawings (Hirata) * '''Need to give the rotation angle of the traverser top plate (Aso) ''' * Cable status (Takahashi) * All the cables except for two cables were delivered. * __'''Need to send more PTFE cable to finish the remaining two -> Will be sent by 25th. '''__ * Need to send the cables used for the test hanging once it is finshed. * __'''Made a cable list -> Put a link to the excel file on Wiki. Takahashi will improve the table. '''__ * Cable check * 70% done. * One cable found to be broken. __'''Will be sent by 25th. '''__ * Call for shift for assembly help (Takahashi) * __'''Made a call for shift for helping the installation works -> no respons '''__ * PR2 wire breaker problem (Tatsumi) * Removal of the wire breakers * __'''SUS wire breaker order status (Takahashi) -> The quotation was obtained (12/21).'''__ * '''Propose to have a special meeting to Hirose-san (Aso) ''' * Wire cleaning (Hirata) * Hirata will order 20m more wires. -> Delivered. '''Will wipe in the next week. ''' * Will wash Tungsten wire delivery status -> Delivered. '''Will wipe in the next week. ''' * Production of additional PR winches (Akutsu) * 650um Tungsten wire test with 9.2kg is fine * '''Will test with 200um wires on Monday (7.2kg) with improved mass clamps (Hirata). ''' * RM compensation mass * Design status (Fabian): Now done. * Need to buy screws for fixing the compensation masses. '''__Takahashi will check the lengths of screws. -> M6-16mm and M6-20mm are necessary. __''' * PR Optical Bench (Akutsu) * For PR2, we do need to raise the optical bench. * Delivery date for the screws: Dec. 21 * PR2 vacuum installation will be Jan. 19 * OSEM assembly status (Akutsu) * OSEM screw length issue * We have a lot of M5x20 BUMAX screws * Do we need to use longer ones ? -> Shoda will check with the actual test mass RM -> Seems OK (5mm spare length) * RM production (Takahashi) * What to do with the dirty RMs ?: __'''Check with ATC if re-polishing the rough surface is possible or not (Takahashi) -> not yet. '''__ * Test hanging vacuum installation * What needs to be done when the suspension is inside the chamber ? * Transfer function measurement * Spectrum * Check the orientation of the mirror * Check the height with laser marker * List of what should be changed for PR3 hanging * People should share ideas whenever they come up with missing thigns. * Shoda made a spread sheet for keep tracking the ideas * https://docs.google.com/spreadsheets/d/1zZaLObWjDSEOTrr85Hz0ApXxEUChK3xJ_chk0f7r5nY/edit?usp=sharing * Missing items(to be purchased soon)<
> * '''Picomotor drivers (Takahashi) ''' * '''Signal generators for LVDTs (Aso) ''' * '''Serial-Ethernet converter: 7 more (Shoda) ''' * '''Traverser motor driver (Shoda) ''' * '''Turn backles (bigger and eye). Smaller shackles. (Aso) ''' * LVDT(Joris) * Fixing LVDTs * Next week (from 12/21) plan * Test hanging * Mon: Traverser check. QPD preparation. * Tue: Transfer function measurements * Wed: * Thu: Orientation and height check * Fri: Orientation and height check * PR2 * Mon: Fabian will sand the magnets in Mitaka. Mark will align the IM * Tue: Preparation of the clean booth, bring in electronics to the tunnel. * Wed: * Thu: Traverser assembly preparation * Fri: Traverser assembly preparation * Travel (Week of 12/21) * Takahashi: Mon-Tue * Shoda: Mon-Fri * Mark: Mon-Tue * Fabian: Thu-Fri * Okutomi: Mon-Tue * Fujii: Mon-Fri * Ishizaki: * Hirata: * Ohishi: * Travel (Week of 1/4) * Takahashi: Mon-Thu * Shoda: Mon-Thu * Mark: Mon-Thu * Fabian: Tue-Thu * Okutomi: Mon-Tue (available) * Fujii: - * Ishizaki: * Hirata: * Ohishi: * Joris: 1/11-1/29 * 1/18 Sekiguchi-kun's PhD defense == BS == * BS Assembly Frame Design (Aso, Hirata) * BS flag design (Mark, Fabian) * BS gluing jigs (Tatsumi) * Not enough crane height problem (Hirata, Saito) * IP base clamp (Fabian) * Bread board spring (Takahashi) * BS clean bag (Aso) == ETM == * ETM assembly frame (Aso) * Got a quotation * Need to include a clean bag frame. PR one was too weak. Make it stronger == Other == * bKAGRA preparation * __'''List of tasks for: BS, Type-A, Type-Bp modification, IMMT (Takahashi) by the end of the next week.'''__ Set up a Wiki page (Aso) * Watch dog system (Tanaka) * Will present at an AEL meeting. * GAS blade inspection by Virgo (Takahashi) * To be shipped soon: '''Check the deadline for Virgo (Takahashi) ''' * Request to the ATC for the next year * Production of the blades of the Type-A BF: We should check the consistency of the optimal load at the TAMA prototype experiment and G&M measurements (SF and TF) (Takahashi) - * SF: G&M 164.7kg, TAMA: 165.3kg * TF: G&M 276kg, TAMA: 278kg * No obvious reason to distrust G&M's measurements * If we can get help from ATC to measure the optimal load in Mitaka, it will be good. * '''Takahashi will make a plan for the optimal load check and ask ATC.''' The start of the Type-A install will be Oct. 2016 * How to manufacture the long maraging wires ? * One prototype was machined by Ojima * Aoshima can do the heat treatment for the long rod. '''Will ask them soon (Takahashi) ''' * How to test it ? * Use the unused assembly frame for Type-B ? * Safety at the site (Takahashi, Ishizaki) * Steps and clean belts will be ordered very soon. == Next meeting == 2015/12/25 (Fri) 13:30 - 2015/1/8 (Fri) 13:30 - F2F@Mitaka