1. RICH simulation for CLAS12 Contalbrigo Marco INFN Ferrara Luciano Pappalardo INFN Ferrara Hall B Central Detector Forward Detector M. Contalbrigo1RICH Meeting 2 Feb 10

2. M. Contalbrigo2JLAB12 coll. Meeting 18 Nov 09 Pad size 2 cm Pad size 0 cm VISIBLE light Pad size 2 cm UV+VIS light UV light

3. M. Contalbrigo3RICH Meeting 2 Feb 10

4. M. Contalbrigo4RICH Meeting 2 Feb 10

5. M. Contalbrigo5RICH Meeting 2 Feb 10

6. M. Contalbrigo6RICH Meeting 2 Feb 10

7. M. Contalbrigo7RICH Meeting 2 Feb 10

8. M. Contalbrigo8RICH Meeting 2 Feb 10

9. Hybrid (visible + UV photons) solution - will probabily require reduced UV fraction - affects anyway TOF C 5 F 12 (UV photons) solution - will probabily resemble C 6 F 14 + UV light - technologically challenging C 6 F 14 (selected UV photons) solution - reduced chromatic error - balance with reduced number of photons Aerogel (il proximity peggiora perche servono almeno 5 cm) Plane mirror close to beam pipe to resume bottom part of the light cone Effect of PMT plane on TOF with Geant 3? C 6 F 14 + visible light should satisfy ID requirements with small pad size High cost for photon detection High material budget affecting TOF M. Contalbrigo9RICH Meeting 2 Feb 10