1. Background New 3mm thick optical filter 21.05.2009

2. Pre-exp:

3. Fill complete: CPC = 19p/cc

4. ??

5. Paul thinks the DMA is arcing at the larger sizes and it can only go up to 350nm!! Chamber is at 80% RH

6. DMPS scanning 30 – 334nm only

7. Distribution??!

8. 14:16 Reasonable loading

9. 14:16 Rubbish distribution! Actually, it is not too different from upstairs’ cpc except it does not scan high enough

10. 4 hours of lights DMPS upstairs is measuring ~ 2ug/m3 (scanning up to ~480nm)

11. Lights on 11:06

12. Chamber DMPS on “dry” room air