1. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 1 Toni Empl, Brandon Reddell, Nic Stoffel & Lawrence Pinsky University of Houston

2. Current NASA Status NASA is undergoing a major redirection in its programs: –The next generation orbital lift vehicle development as an internal NASA project has been terminated… –Plans call for this capability to be taken over by commercial entities with guaranteed government contracts… –NASA will continue to support the ISS using Russian launch capability for the next 4-5 years before US commercial vehicles are available… –NASA will begin to refocus its research on the exploration of the Solar System, including the development of new propulsion technologies, spacecraft designs, and the associated support infrastructures… –There should be opportunities for FLUKA and Medipix as this redirection takes shape… –NASA’s budget will increase by1.6 G$/yr (which is 1.4 G$ to small) FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 2

3. Current Houston Group Activity ToniToni is working mainly on simulations in support of the Darkside Dark-Matter expt. (but he is continuing to work on FLULA development…) Brandon ReddellBrandon Reddell is completing the analysis of the AGS data examining the overlap between RQMD and DPMJET. Nic StoffleNic Stoffle is working on developing a FLUKA simulation for the Medipix detector response to heavy-ions. Dilan Minthaka is working on ALICE and will use FLUKA to simulate the upcoming PS & SPS Test Beam EMCal runs, as well as to look into enhancing the ALICE TPC particle ID resolution above 2 GeV by fitting the distribution of dE/dx values for the charge voxels. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 3

4. Medipix (TimePix)Heavy Ion Measurements FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 4

5. FLUKA Medipix (TimePix)Heavy Ion Simulations FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 5 Note the ~10% differences in the peak location with the measurements being 10% lower then the simulations… However, the widths are the same!

6. The 10% Is Due to Recombination and Saturation FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 6

7. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky 7 AGS Setup-LBL, MSFC & UH Houston FLUKA Activity Update

8. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky 8 UH Detector Array @ the AGS Houston FLUKA Activity Update

9. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky 9 General Setup @ the AGS Houston FLUKA Activity Update

10. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky 10 Data Were Taken For: Beams:C, Si & Fe Energies: ~3, 5 and 10 GeV/A Targets: C, Al, Fe & Cu + Several Thick Targets Houston FLUKA Activity Update

11. RQMD & DPMJET 3 v. Data FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 11 C on CSi on Fe 3.4 GeV/A 5.4 GeV/A 10.8 GeV/A 5.4 GeV/A 3.4 GeV/A

12. RQMD v. DPMJET 3 in FLUKA 10.8 GeV/A C on C Angular distributions (vs. cos  ) FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 12 pionsnucleons DPMJET 3 multiplicity is consistently ~ 2 times too small!

13. Recommendations Move the crossover point up to > 10 GeV/A from the present point centered at 5 GeV/A Explore the reasons for the dip at 90° in DPMJET 3. Look into multiplicity deficit in DPMJET 3. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 13

14. Idaho Accelerator Center 23 MeV e - FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 14

15. 23 MeV e - Measurements with the TimePix v. FLUKA FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 15 All Clusters Primary e - FLUKA e - KeV

16. FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky Houston FLUKA Activity Update 16 Thank You for Your Attention