fluka meeting--infn-milan july 9, 2010 – l. pinsky houston fluka activity update 1 toni empl,...

FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky

Houston FLUKA Activity Update

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Houston FLUKA Activity UpdateHouston FLUKA Activity Update

Toni Empl, Brandon Reddell, Nic Toni Empl, Brandon Reddell, Nic Stoffel & Lawrence PinskyStoffel & Lawrence Pinsky

University of HoustonUniversity of Houston

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)



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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 Stoffle Nic 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.



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Medipix (TimePix)Heavy Ion Measurements



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FLUKA Medipix (TimePix)Heavy Ion Simulations



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Note the ~10% differences in the peak location with the measurements being 10% lower then the simulations…However, the widths are the same!

The 10% Is Due to Recombination and Saturation



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FLUKA Meeting--INFN-Milan July 9, 2010 – L. Pinsky 7

AGS Setup-LBL, MSFC & UH

3°°

° °

9°

45°

Target Beam

ZDDS LBL Neutron -Counters

UH SSDs

LBL Si & Scint



UH Detector ArrayUH Detector Array@ the AGS@ the AGS



General SetupGeneral Setup@ the AGS@ the AGS



Data Were Taken For:

• Beams: C, Si & Fe

• Energies: ~3, 5 and 10 GeV/A

• Targets: C, Al, Fe & Cu + Several Thick Targets


RQMD & DPMJET 3 v. Data



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C on C Si on Fe

3.4 GeV/A

5.4 GeV/A

10.8 GeV/A 10.8 GeV/A

5.4 GeV/A

3.4 GeV/A

RQMD v. DPMJET 3 in FLUKA10.8 GeV/A C on C

Angular distributions (vs. cos )



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pionsnucleons

DPMJET 3 multiplicity is consistently ~ 2 times too small!

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.



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Idaho Accelerator Center23 MeV e-



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23 MeV e- Measurementswith the TimePix v. FLUKA



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All Clusters

Primary e-

FLUKA e-

KeV



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Thank You for Your Attention

fluka meeting--infn-milan july 9, 2010 – l. pinsky houston fluka activity update 1 toni empl,...

Documents

gevahouston fluka activity

fluka simulation

datafluka meeting

saturationfluka meeting

smallfluka meeting

medipix detector response

ags data

ags setuplbl