1. Dust Accelerator: Status and Plans 3 MeV dust accelerator Particle sizes: 0.2 – 2.5  m Particle velocities: < 100 km/s Large test chamber UV sources Solar wind simulator Various targets Small (UHV) test chamber Microphysics diagnostics Additional 20 kV ‘mini’ accelerator Prototype dust head, detectors, etc.

2. Pelletron in NPL Designed after Heidelberg facility HV chamber Dust head Beam lines Particle selection units Located in NPL on East Campus (Physics) Previous use : CU cyclotron 90’ x 56’ high bay (shared) 50 ton crane Lots of power and shielding 12 offices + lab/sample-prep areas

3. Pelletron in NPL high bay

5. NPL Second Floor

6. Near-Term Items NPL Renovation / Re-inhabitation Clear / Paint offices Clear high-bay space Bring power/water/air to Pelletron area FacMan supplied $50k of ICR funds for project Pelletron order 12-month lead time until delivery Chamber / vacuum sys. / cooling / beamlines / detectors / PSU / etc. can be completed during interim Complete fabrication of 20 kV mini-accelerator