1. This is the final release: 13Jun09 Review: 15 June 2009 Brooke Gregory
Blanco Clean Room – CDR
This is the final release: 13Jun09
Review: 15 June 2009
Brooke Gregory 1

2. Requirements Clean – Class 10,000 – 100? Enough room: ESD
NEWFIRM – 15’ x 20’ (down from 20’ x 20’ orig.)
DECam – 12’ x 20’ Tom Diehl’s PPT
ESD
Materials - static dissipative
Humidity >~40% 2

3. Main Features Area – 14.5 x 20.5 ft plus gowning area
Wall panels – static dissipative PVC
Floor – Antistatic vinyl tile
50% FFU ceiling coverage
Use Coudé as plenum
Positive pressure in Coudé
Air-locked pass-through
Controlled humidity - >35% 3

4. An example Gemini’s Base Facility Cleanroom
Same area as what we are proposing
7 FFUs
No gowning area
Uses main room as plenum
Performance ? 4

5. Gemini BF Cleanroom 5

6. Gemini Cleanroom – 12May09 8:30am-5:30pm 12May
average = 97 part./cu.ft. 6

7. Notes on activity 7

8. Location of the Cleanroom8

9. Cleanroom elevation 9

10. Perspectives 10

11. Constructional details
Anti-seismic frame – steel roof and corner pillars
Panels – dissipative PVC; aluminum frames; stainless stripping
Seals
Vents – low level slots with self-adjusting covers and magnetic sealing strips.
Doors –
2 large instrument access
Air-locked gowning area
Air-locked pass-through for tools, etc.
(Possible emergency crash exit gowning area?)
Floor – static dissipative vinyl tile 11

12. Construction - movie 12

13. Panel mounting 13

14. Vents; covered with flexible plastic sheet
Panel details
Vents; covered with flexible plastic sheet 14

15. Gowning room doors 15

16. Sliding doors for Big Instruments16

17. FFUs and Lamps 17

18. Electrical Breaker box
110 v, 60 Hz outlets at each corner at floor level
Ground connections 18

19. Cleanroom in Coudé
Intentionally left blank. (It is always good that one’s intentions be less than 100% clear.) 19

20. Preparations to Coudé Remove all spectrograph pillars (done)
Prepare floor: floor will be ground to eliminate relief between main concrete segments (small area). Then grouted.
Prepare ceiling (remove interfering lamps; tape holes) 20

21. Flooring Requirements: Solution chosen: ESD safe Clean(able)
Load-resistant
Solution chosen:
Staticworx: 3mm, solid vinyl tile over grouted concrete
ESD characteristic: ANSI ESDS standard
Load – 2500 lbs/sq.in.
Steel Transition ramp
Installed by AOSS in cleanroom structure 21

22. Fabrication and Assembly
Welded steel modules pre-fabbed by contractor: pillars and roof modules
Modules brought to Coudé
Panel vents pre-cut
Cable trays incorporated in roof sections
Cabling of roof sections done in Coudé on floor
Pillars cemented to floor, joined to roof sections (bolted joints);
Roof installed on pillars and beams between them
FFUs, lamps, installed on roof and connected to cables
Panels, fixed and on doors, installed 22

23. ESD Management Room construction
Panels – static dissipative PVC
Floor – static dissipative vinyl tile, connected to ground
Humidity – automatic control; implementation in Coudé modifications
Station tooling (TBD) ionizers, table mats, grounding lines, monitors 23

24. Seismic Performance
The roof of the clean room weighs about 1 ton. The structure needs to be stronger than the typical all-aluminum room. We did not have the engineering resource to investigate the solutions in-house. The solution was to contract out the analysis of the requirements and the architectural solution to Rodrigo Pino and Co. 24

25. Seismic analysis
Performed by Ingenieria CRAM Ltda., Concepcion; report received.
Proposed structure and then analyzed the structure, based on very conservative assumptions.
Acceleration assumed: 0.4g
Maximum stress on each member of the structure computed and shown to be below safe limits. 25

26. Operations Model
Cleanroom normally off: vents will be sealed, doors locked, humidifier and all but one ventilator will be off.
Coudé will be at positive pressure (this is new). A fan/filter inlet to the Coudé will be constantly acting. (Requires periodic filter maintenance).
Procedure for cleanroom use, depending on nature of use:
Un-lock necessary doors
Un-block vents
Turn on FFUs and lamps and dust monitors
Possible wipe down of cleanroom
Turn on humidifier and space heaters (if required)
Wait until dust-counter reading has settled to a steady state and, depending on application, humidity has reached appropriate level 26

27. Tools and furniture
A 3 ton gantry crane will be ordered; 1.5 ton hoist
More tools are not proposed in this presentation.
Rehearsal at Fermilab will lead to good input on tools.
We propose to solicit suggestions from both teams.
Our philosophy is to minimize the use of the clean room. We will also be providing lab space in the Coudé room or in Las Tacas. 27

28. Approximate Milestones
15 June - Review
16 June - Issue requisitions
17 June - Start floor preparations
17 June - Start clearing Coudé
1 July - Steel arrives, Benjamin starts fabrication
8 July - Move wall of Coudé
16 July - All materials arrive
17 August - Coudé ready for Cleanroom installation
17 August - Assembly begins
17 September - Cleanroom complete 28

29. Project Capital Costs Panels - $17k FFUs – $12.9k Crane (s) - $11k
Humidifier - $5.8k
Steel structure (erected) - $5k (not current)
Lamps - $2.8k
Total:
Does not include tools and instruments 29

30. END
Some extra slides follow. 30

31. DECam in COUDE; perspective31

32. Coude w. NEWFIRM and DECam32

33. NEWFIRM, crane, Ron Probst and Ron George.
This is with a 20 x 15 ft room, but a superseded gowning area concept. 33