1. Collab Store 6/6/07 #1 EDMEDM Martin Cooper, Los Alamos Co-spokesperson for the EDM Project for presentation to The EDM Collaboration Los Alamos, NM June 7, 2007 Preparations for the next UCN storage time measurement

2. Collab Store 6/6/07 #2 EDMEDM Outline I)Review II)New Assembly III)Schedule

3. Collab Store 6/6/07 #3 EDMEDM Storage Time  in a Bottle

4. Collab Store 6/6/07 #4 EDMEDM Experimental Layout in Area B UCN Coat with UCN absorber Switch Diamond coated guide 1/2" hole

5. Collab Store 6/6/07 #5 EDMEDM 3D Storage Cell LN 2 Cryosat

6. Collab Store 6/6/07 #6 EDMEDM 1/Fill Time = Production Rate - Loss Rate Absorption Time 1/Detector Loss Rate Storage Time UCN Storage Time Measurement

7. Collab Store 6/6/07 #7 EDMEDM UCN Stored for 100 s Time (s) Counts (/s) UCN filling from SD 2 source Bottle sealed and source off UCN from bottle

8. Collab Store 6/6/07 #8 EDMEDM Mechanism inside the Vacuum Vessel UCN from SD 2 Source Cooling Lines Shutter Mechanism Encased Storage Cell Shutter Block Part of Radiation Shield Floor of Vacuum Vessel

9. Collab Store 6/6/07 #9 EDMEDM Shutter Open

10. Collab Store 6/6/07 #10 EDMEDM Shutter Aligned

11. Collab Store 6/6/07 #11 EDMEDM Shutter Closed

12. Collab Store 6/6/07 #12 EDMEDM Shutter Seal

13. Collab Store 6/6/07 #13 EDMEDM Entry to Enclosed Box

14. Collab Store 6/6/07 #14 EDMEDM Cell Drawing

15. Collab Store 6/6/07 #15 EDMEDM Corner Detail

16. Collab Store 6/6/07 #16 EDMEDM Corner Mating

17. Collab Store 6/6/07 #17 EDMEDM Coating Working with LANL polymer chemists Spray coating does not yet work Wipe on deuterated styrene – 2 coats Performed a crazing test with 2 cycles to 77 K Trying to decide how to make sure no spots are missed

18. Collab Store 6/6/07 #18 EDMEDM Temperature Unsure in previous test what temperature was on the inside of the cell since diode was on cooling plate with only partial coverage of cell Performing a test on old cell with diodes in a number of strategic locations New cell cooling scheme to get better thermal contact Performing a test with new cooling configuration Temperature cycle will include a bake out under vacuum at about 50 ° C for several days prior to any measurements

19. Collab Store 6/6/07 #19 EDMEDM Enclose Box

20. Collab Store 6/6/07 #20 EDMEDM Cooling Detail Spring loaded Al cooling plate Copper Mesh Thin copper Transfer sheet

21. Collab Store 6/6/07 #21 EDMEDM Schedule Very uncertain due to UCNA requirements One run of 3-4 days in late June to mid-July A second run of 3-4 days about a month after the first run