SR1 extension follow up

1. SR1 extension follow up 15-Jan-18 Marco Ciapetti

2. Introduction • Various updates • Reinforcement of the ceiling • ECOFRED starting date (and other WPs schedules) • Revised sockets plate • Current status of the project • Updated schedule • Things to be decided

3. Various updates • Before Christmas SMB put in place the concrete slab behind SR1. Now EN-CV can start installing the new components outside the building  SCHEDULE (Alex) • ECOFRED requested to work outside normal working hours (for their convenience). In principle at CERN it is possible only for Safety or Technical reasons, but for other projects ECOFRED was authorised. TC is in contact with HSE in order to solve this issue, but still no answers. • The result of the previous point is that ECOFRED starting date is being delayed. ECOFRED will not start before 12/02/2018 (T.B.C.). • TC is currently refining the ECOFRED executive design file and dealing with them, while in the meantime is working to prepare the PdP for the WP4

4. Reinforcement of the ceiling proposal

5. Reinforcement of the ceiling • SMB will proceed to the reinforcement of the ceiling soon. The earliest possible starting date is 12/02/2018 (if the profile are available). • During the intervention, it will not be possible to access the radiation lab. • This date should be ok with the Users as well • TC is evaluating the possibility to ask ECOFRED to start on February 19 (to give the time for the ceiling reinforcement to be completed). If they accept, all WPs’ schedules will be affected (see Schedule study). Would this be acceptable for all other WPs?  (Alex, Thierry, Leszek, Pierre)

6. ECOFRED starting date ECOFRED starts 12/02/2018 ECOFRED starts 19/02/2018 EN-EL: cable trays installation over the ceiling, cabling and commissioning Mid of May – Second half of June IT: cabling and commissioning Second half of May – Mid of June SMB: ESD flooring Second half of June – End of June • EN-EL: cable trays installation over the ceiling, cabling and commissioning Beginning of May – Mid of June • IT: cabling and commissioning Second half of May – Beginning of June • SMB: ESD flooring Beginning of June – Mid of June • EN-CV should not be affected. Alex do you confirm?

7. Sockets plate It has been agreed to add all the sockets (Electrical and IT) on a custom plate. This will allow to have one single hole in the wall/enclosure for each spot. The custom plate has been designed by EN-EL and TC and accepted by IT and the users. The agreed height of the plate from the floor is 500mm (center). The revised version is shown below. Dimensions will be confirmed ASAP. ACCEPTED

8. Current status of the project • Last week EN-EL started the installation of the lights over the internal ceiling • This week EN-EL has foreseen to remove all the cables and cable trays running over the ceiling • SMB Work Package is almost completed. Only exceptions are: • Painting on the road (parking places, etc.) • Modification of emergency doors • Problem of the ceiling must be solved permanently

9. Updated Schedule • Jun 2017: SMB started civil engineering works • Jul 2017: SMB prepare the foundations • Aug 2017: SMB install the concrete slab and the ramp • Sep 2017: SMB started the installation of the mechanical steel structure • Oct 2017: SMB completed the steel structure, the external walls and the roof. EN-CV installed the temporary AHU and ducts. EN-HE-HM started the installation of the rails • Nov 2017: SMB removed the internal wall of the current cleanroom and started the road works. EN-HE-HM completed the installation of the rails. EN-CV started removing the existing components • Dec 2017: target for ending SMB works. EN-CV removed the existing components • Jan 2018: EN-EL install lights over the internal ceiling and remove cables over the ceiling. EN-CV should start working on the HVAC system installation  in progress • Feb 2018: TC should start installing the internal clean room extension. • Mar 2018: EN-CV and TC will continue working on their WPs. • Apr 2018: EN-EL, IT-CS should also start installation. Target for ending clean room extension installation • May 2018: EN-CV should complete the commissioning. IT-CS and BE-ICS should complete their commissioning • Jun 2018: Installation of cables from user side • Jul 2018: target for commissioning the SR1 clean room extension

10. BACK UP SLIDES

11. SR1 cleanroom extension – WBS (Work Breakdown Structure)

12. SR1 cleanroom extension – OBS (Organizational Breakdown Structure) • Project board: Ludovico Pontecorvo (163664) – ATLAS Technical Coordinator Siegfried Wenig (163865) – ATLAS ExGlimos Marco Ciapetti (169451) – Project Manager • Safety: Valentin Algoet (167993) –HSE-SEE representative John Robert Etheridge (164647) – P1 Safety Coordinator • WP1: Civil Engineering (SMB-SE)  Pierre Cardon (167840) • WP2: Cooling and Ventilation (EN-CV)  Alexandre Joel Broche (166078) • WP3: Electrical Installations (EN-EL)  Thierry Charvet (162352) • WP4: Cleanroom Internal Envelope (EP-ADO)  Marco Ciapetti (169451) • WP5: IT (IT-CS)  Leszek Borakiewicz (169195) • WP6: Fire Detection (BE-ICS)  Denis Raffourt (163219) • WP7: Rails (EN-HE-HM)  Roberto Rinaldesi (166379) • Users: Kendall Reeves (162808) on behalf of ATLAS ITkDidier Ferrere (160515) on behalf of ATLAS IBL

13. SR1 cleanroom extension – PBS (Product Breakdown Structure)

14. Safety coordinator John Robert Etheridge John.Etheridge@cern.ch (164647) is the safety coordinator of P1. He will help TC to ensure that all the works will be done according to the CERN safety rules. For all WPs, a VIC shall be prepared after the design phase and presented by the responsible of each WP to the safety coordinator beforestarting the works. John is invited to this follow-up meeting so that he can be informed about on-going activities and can control that all foreseen/incoming activities are properly planned from the safety point of view.

15. Power consumption • The Users are planning to test in the SR1 cleanroom 1/8 of the entire ITk services • On 28/11/2017 TC had a meeting together with the Users (Dave, Susanne, Kendall) and EN-EL (Thierry) trying to better understand the situation. The results of the meeting are listed below: • For the moment it is not yet known the amount of power that will be required: • PP2s are not yet designed • An additional chiller will be required, but still not defined • In SR1 there are: • one (existing) switchboard (EBD5/1R) of 630 kVA (≈580 kW and 910 A) serving the racks area and the HVAC. The measures done show that between 12/2013 and 06/2017 the average served current was 180 A, with peak values around 360 A. This switchboard has several spare circuits that can be used. If the new HVAC system will have the same power consumption of the actual one (230 kW), there should be at least 350 kW available • one (new) switchboard of 250 A serving the cleanroom power outlets

16. Doors for emergency exits • In order to maximize the external view and natural lighting, TC requires the fully transparent doors for the emergency exits  SMB has to change doors • As specified during the design phase and again in the email sent on 12/10/2017, the door of the emergency exit shall: • Have a panic bar (push bar) inside to easily open the door in case of emergency • NOT have the outside handle: the door must be used only in case of emergency  and shall not be opened from outside (the lock shall be removed) • Be airtight (at least class 3 according to EN-12207) and compliant with the Swiss law

17. CV balance sheet for power dissipation Updated on 15/08/2017

18. Rear concrete slab for CV structure • An extension of the concrete slab behind SR1 (below the current smoke extractor) is needed by EN-CV for the installation of the pre-treatment device. • The new slab will continue (same height) the existing one and it will avoid the conflict with the separator access. • SMB is waiting for a price estimation from the contractor • The mechanical structure has to be modified (removal of the lowest horizontal beams) during the EN-CV devices installation. TBC if the modification need to be permanent

19. Cleanroom ceiling reinforcement Actual test area Radiation lab Existing cleanroom According to SMB calculations, MAX 2 people can work on the ceiling in the same panel/point Future extension Scaffolding have been installed on 27/09/2017as schematically shown in the picture above. They will be in place until the end of the works (or until the replacement of the existing ceiling (with a walkable one)

20. External windows requirement from HSE • The building extension is not compliant with the Swiss law, due to the absence of external views and natural lighting • HSE required to TC a formal approval process • On 11/10/2017 TC sent to HSE the Users’ motivation to justify the absence of external window and natural lighting. The motivation is the following: While assembling the ITk, we will be working with glues and epoxies that will require very stable conditions with respect to temperature and humidity.  Windows allowing light to enter will make that more difficult to manage.  Also, we will want to test detector components multiple times during the assembly process, but their performance is temperature dependent.  Having a local change in temperature of one or two degrees will alter detector performances in an observable way, which complicates performance comparisons.  Our objective of building the best, most reliable detector possible demands a high level of stability and control of the environment in which we build it. • TC and HSE prepared the document for the approval process. The document was circulated on 30/10/2017. On 02/11/2017 TC received the green light to proceed from HSE. The approved derogation can be found here on EDMS.

21. Position of lights switches in SR1 cleanroom ACCEPTED

22. Lights switches Each spot ( ) will contain one two-button switch Each switch should be embedded in the wall and as much as possible airtight. ECOFRED suggested that the switches shall have an International Protection Marking at least IP54. EN-EL proposes to install the following type: ACCEPTED The basic idea is: One button turns on/off all the lights in the extension and the second button turns on/off all the lights in the existing portion

23. Position of power sockets in SR1 cleanroom ACCEPTED

24. Power sockets As already agreed, each spot ( ) will contain: • 4x 220V - 16A (CH standard) • 1x 400V - 32A Local differential switch will be installed on the new switchboard Each sockets should be embedded in the wall and as much as possible airtight. ECOFRED suggested that the power sockets shall have an International Protection Marking at least IP54. EN-EL proposes to install the following type: ACCEPTED

25. Position of Ethernet sockets in SR1 cleanroom ACCEPTED Single socket Double socket

26. Ethernet sockets Each spot ( ) will contain one double socket and each spot ( ) one single socket Each Ethernet socket should be embedded in the wall and as much as possible airtight. ECOFRED suggested that the Ethernet sockets shall have an International Protection Marking at least IP54. IT-CS proposes to install the following type: ACCEPTED

27. Lighting • The current lighting level in the actual cleanroom is 400 lx. • Due to the absence of external windows and natural lighting the Swiss law requires as compensatory measure to have at least 600 lx, with a C.R.I. ≥ 90 and a color temperature between 5300 K and 6500 K • Users (Danilo) requested a lighting level of at least 1000 lx (see email on 20/10/2017). • ECOFRED will provide the following lighting system: • LED lighting units with a C.R.I. = 90 and a color temperature of 6500 K • Lighting level of at least 1000 lx at the working place with a Uniformity Ratio of 0,7 ACCEPTED

28. Taken decisions ACCEPTED On 14/11/2017 HSE gave the green light for the layout of the parking places shown in the picture above

29. Small pillar that cannot be cut • the last small pillar of the cleanroom is connected to the main structure holding in place the material lobby’s walls • Even though it has been agreed that all small pillars will be removed, the last small pillar cannot be cut • The presence of this pillar is not affecting the new CV duct Also the horizontal beam has been checked and it is not an issue. However SMB agreed in removing/displacing the beam if necessary • TC propose to encapsulate in the same enclosure of the CV duct ACCEPTED

30. Proposal 3 for CV inlet duct encapsulation No encapsulation Encapsulation V3 ACCEPTED • Only the duct, the small pillar and the central cross of the metallic structure are encapsulated • The opening for grounding proposed by EN-EL must be displaced by 150mm • Worse for cleanliness point of view (inclined surfaces can collect the dust) • Smaller surface lost in the cleanroom: 1.33 m2on the floor and 2.77 m2 from 2.3m from the floor

31. Cable trays and enclosures ACCEPTED

32. Antistatic floor of the extension • SMB proposed the following flooring solution: • A first layer (primer) made of: Sikafloor 161 • A middle layer (with antistatic properties): Sikafloor 220 W Conductive (RG: 103≤ R ≤ 104Ω) • An upper layer (protective and ESD): Sikafloor 262 AS N (RG≤ 106Ω) • According to Sylvain, the proposed solution is more than enough for the purposes of the cleanroom. • Users agreed to this proposal (see email from Kendall on 10/09/2017) • SMB can proceed with this solution ACCEPTED

33. New proposal for CV inlet duct ACCEPTED The blue duct now is not crossing anymore the room over the ceiling, but below the floor The big mobile sink has been temporarily disconnected and displaced The position of the lighting units must be updated Two proposals for the encapsulation of the ducts (see next slides)

34. Position of the permanent fan coils for R-C04-A Left Right ACCEPTED • EN-CV will dismount the current grills (when possible/useful). • The two proposed locations for the fan coils of the permanent AHU in the test room are shown in the above pictures. • They have been approved by Kendall on 16/08/2017 and by Didier on 21/08/2017. Dimensions of each unit: Width: 1600mm Height: 700mm Depth: 300mm This will be removed by EN-CV To be displaced by the users To be displaced by the users

35. Temporary AHU in R-C04-A • This temporary AHU will be placed outside SR1 (back side) to supply fresh air (hot and cold) in the test room (R-C04-A). The unit will be in use from November 2017 to June 2018. More details and information about the TSH060 unit can be found here

36. Electrical matters • Current 160A switchboard will be replaced by a 250A switchboard (maximum possible considering actual electrical consumption, future general needs and current transformer capacity). • The order for the new switchboard has been sent on 07/07/2017. Total cost is ≈35kCHF • According to Thierry calculations (see email of 30/06/0217) a maximum of six 380V-32A sockets can be used simultaneously in exceptional cases: • 4 devices running on 380V-32A sockets can work at the same time with no constraints • It should be possible to add 2 more temporary • Grounding works are completed

37. Schedule for ITk Pixel tests in SR1 • April-August 2017: test of prototype with one full cooling line ~375 W in SR1 (August 2017) • September 2017: commissioning of system setup in SR1 (power needed, few days of outage can be discussed, CO2 partially needed for commissioning) • October-November 2017: assembly of prototype in SR1 (power and CO2 needed, days of outage can be discussed) • November 2017-November 2018: systematic evaluation of demonstrator in SR1, dedicated test bench for comparison of DAQ, readouts, powering, cooling (power and CO2 needed). Short periods of outage can be discussed: a possible solution is to run power extension cables from the nearest building, if needed(tbc)

38. Schedule for ITkStrips tests in SR1 • April-September 2017: Testing of pre and post irradiated modules in SR1 + Testing cold (-35°C) with chiller • September-December 2017: assembly of parts for system test setup for a Strip Stave in SR1 • January-November 2018: Commissioning of system tests of a stave (CO2 cooling, interlock, DCS, DAQ, cabling) As agreed with Susanne and Jens, short periods of outage can be discussed

39. Taken decisions • Services cannot arrive from below the fake floor into the pillars: pillars do not go through the fake floor, but they are loading the concrete floor. Openings are present in the concrete floor, but far away from the pillars. • The only possible solution is to run the cables over the ceiling and enter from there into the enclosures. • Cable trays and enclosures shall not cross the rails in order not to lower the ceiling in the assembly region. • The users required to have a minimum height of the ceiling of 3.7 m • The option of lowering the current ceiling (panels are 4.15m high) has been discarded

40. Taken decisions • The clean room will be ISO 8 according to ISO 14644-1 • All cable trays shall be covered • WP3 (EN/EL) will take care of all the cable trays related to main electrical services, while WP4 (TC) will take care of the cable trays for electrical controls. Users shall specify their needs ASAP • ESD precaution will be obtained with mats, people grounding and NO new antistatic floor is foreseen in the radiation lab • The SR1 radiation lab can be used by ITk tasks, but needs to be cleared with 1-2 months notice in case of TC/detector needs during EYETS

41. Taken decisions • 13 power boxes will be installed by EN/EL. One power box at each of the 4 pillars between existing room and extension (the central pillar will be removed) and one power box every 3-4 m on the wall (evenly distributed). Each power box shall have at least: • 4x 220V - 16A (CH standard) • 1x 400V - 32A • Local differential switch for each sockets group (one for 4 sockets 230V-16A  and one for socket 400V-32A) • 2 existing sockets boxes will be kept on UPS network (in the pillars area). No additional sockets on UPS network are required • Existing UPS network details: 100kVA lasting approx10 minutes at 80kW (see email from Thierry sent on 28/06/2017) • LED Lighting providing ≈1000 lux

42. Taken decisions • EN-CV will switch off the air conditioning and ventilation for at least 6 months (schedule should meet SMB’s one) • EN-EL will switch off the electricity for small periods of time (schedule should meet global schedule and users’ schedule) • Overpressure targets: • Overpressure of extended clean room (R-C04-B) is ≥15 Pa • Overpressure of radiation lab (R-C14) is ≥15 Pa • No overpressure in the test zone (R-C04-A), changing room (R-202), other areas • Overpressures of R-C04-B and R-C14 can be manually regulated in order to create slight overpressure of the clean room over the radiation lab if needed

43. Taken decisions The proposal of extending the changing room R-202 by ≈1m has been accepted. The drawings have been modified Will be removed before starting To be removed To be removed ≈1 m

44. Taken decisions • Two rails are required to drive the coaxial installation of the ITk. • These rails will be: • 2 different rails, one flat and the other with a V shape (see drawings from Roberto) • Parallel to the extension long side (centered wrtthe opening) • 36.5m long and 2m apart ending 7.5m outside the building • Embedded into the floor • No particular tolerances have been added (default tolerances are considered) • There will be a 3m x 8m concrete slab that will host the outside rails and will create a flat area (currently there is a slope) at the same level of the inner floor • SMB shall update the design of the concrete slab Eric agreed on 16/05/2017

45. Taken decisions • An additional door has been required on the North-East-short-side wall of the extension, to ease the extraction of the ITk assembly. • SMB will design an opening (2.8m wide and 3.5m high) centered in the N-E short side of the extension . • This opening will be closed with a removable wall (not with an external door). This removable wall can be removed using a crane. • The cleanroom will have a correspondent opening of the same dimensions and will present either an internal double door or another system to guarantee the sealing. Eric agreed on 16/05/2017

46. Cooling and Ventilation stop • The stop of CV system for at least 6 month announced by EN-CV and due to the replacement of the AHU and upgrade of the CV system will cause major problems in the ID test area • Didier, Anatoli and Dave agree that during such a long stop of the air conditioning, the test cannot be performed • A solution has been discussed among Didier, Alex and myself. It has been presented to all involved people and it has been agreed (see next slide)

47. Temporary solution for R-C04-A during CV stop The main points which have been agreed from both parties are listed below: EN-CV will switch off at first only the portion of the system close to the demolished wall (where they have to work), keeping on the system on the other side of the cleanroom (test area and radiation lab). This will lower at the minimum the amount of time people working in SR1 are affected from the CV stop. To grant fresh air (especially when the R-C04-A will be divided from R-C04-B), the upper door above the emergency door of R-C04-A can be kept open (see attached file). Being an internal building (building into a building), the SR1 cleanroom should not have huge problems regarding the temperature. Especially in winter time and considering the power dissipated into the test area, the temperature should not drop drastically. Anyway, just to be sure to have always acceptable working conditions, one or two mobile inverter air conditioner can be provided (the cost estimate is roughly around 3-4 kCHF each) so that also people in the radiation lab can adjust the temperature in their working area. Alexandre will add these points (even if they are related to a temporary solution) into the “Upgrade of SR1 clean room” document prepared by him and circulated for approval.