1 / 16

FLUKA 2014 release

FLUKA 2014 release. Alfredo Ferrari CERN, Geneva Switzerland CERN, 22/11/2013. (Semi)-stable development version. Provided by Alfredo at regular intervals (2-4 months typically) Contains all latest developments/tools Provided with the aim of: Allow extensive testing and debugging

cedric
Download Presentation

FLUKA 2014 release

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FLUKA 2014 release Alfredo Ferrari CERN, Geneva Switzerland CERN, 22/11/2013

  2. (Semi)-stable development version • Provided by Alfredo at regular intervals (2-4 months typically) • Contains all latest developments/tools • Provided with the aim of: • Allow extensive testing and debugging • Perform critical calculations with the most updated physics when relevant (eg +, prompt photons) • Perform complex calculations with much more user friendly tools (eg new voxel format, integrated  scoring) • Perform calculations impossible with the production version (eg SR calculations) AF/PS, ELI, 21/11/2013

  3. Development version use • Whichever study/publication/presentation making use of results obtained with the devel version must be agreed “a priori” with the Collaboration • It should in general include the relevant developers as co-authors • Notwithstanding the above, unless the work concerns with a specific “practical” task of a lab (eg shielding of a facility), every effort should be done to involve other interested members of the Collaboration AF/PS, ELI, 21/11/2013

  4. Development version: distribution • How to make it available ? • Where? • Under which protection? • How to assure that it does not get disseminated by mistake to people external to the Collaboration? AF/PS, ELI, 21/11/2013

  5. Urgent priorities: • Partially neutralized or H- beam transport, and radioactive/excited isotope decay in flight • Update the decay, level and mass databases Alfredo, Vasilis?, ? • Make them consistent and check for artifacts Alfredo, Vasilis?, ? • Make the decays as analogue as possible (essential for in flight decays) Alfredo, Vasilis?, ? • Adapt the transport framework to deal with unstable nuclei, both radioactive and/or excited to long-lived levels or to forbidden decays (like 0+ - 0+ transitions) Alfredo, ?? • Adapt the transport framework to deal with not fully stripped charge states (including proper masses, stripping of possibly energetic electrons when entering materials etcetc) Alfredo, ?? • Implement the crystal channeling machinery developed by Philippe Philippe, Francesco, Alfredo • Deuteron interactions Paola,?? AF/PS, ELI, 21/11/2013

  6. Urgent priorities cont.d: • Implement the revised version of DPMJET-3 Anatoli, Ralph, Stefan, Alfredo • Implement the Fluka-Sixtrack coupling through ad hoc “institutionalized” routines, instead of user routines Alessio, Pablo, Alfredo • Implement the PET scanner scoring (Pablo) through ad hoc “institutionalized” routines, instead of user routines Cristina, Pablo • Improving and smoothing the transition resonance model-DPM for N-N reactions around 3-10 GeVAlfredo, ?? • Make the FLUGG interface 64 bit compliant and at the same time bring all pointers to 64 bits for future developments Paola, Luillo, ?? • Revise, understand, benchmark the neutrino cross section and interaction package George, Paola, Mattias, Alfredo, Maddalena… AF/PS, ELI, 21/11/2013

  7. 2014 RELEASE AF/PS, ELI, 21/11/2013

  8. (Un)expected issues requiring urgent fix: • Too low Coulomb barriers for ’s and other light ion reactions on medium-heavy nuclei  overestimated cross sections below 15-25 MeV Andrea M, ?? • Too low deuteron emission for reactions like (p,d)/(n,d) on medium/heavy nuclei in the pre-equilibrium regime. The fix is likely to extend what has been already implemented for light targets (see next slides) Alfredo, ?? • While looking for “improving and smoothing the transition resonance model-DPM for N-N”,  obsolete resonance production cross section and branchings for nucleon-nucleon interactions (Comfort…), urgent to fix Alfredo, ?? • Large pT tail for high energy interactions systematically underestimated (even if tiny, still important in some cases) Alfredo, ?? AF/PS, ELI, 21/11/2013

  9. Pointwise neutron cross section Not for next release, to be ramped up just after the urgent priorities • Define a format Alfredo, Vasilis • Processing chain (fortran please!) possibly as much as possible with NJOY ( compatibility with the corresponding group ’s)  uniform grid? Vasilis, ?? • Post-processing tests modeled as per group ’s ?? • Fully analogue (it requires a lot of work for reactions like (n,n), (n,2n), (n,np) etc), quite some work done (Alfredo) for a general implementation Alfredo, Francesco ?, ?? • Re-utilize as much as possible the format/tools already developed for some special cases • Start with ’s, then move to secondary particle distributions in steps AF/PS, ELI, 21/11/2013

  10. A few other developments (~ready): • Interactions of 3He and 3H (through BME) (done, benchmarks?) Andrea M. ?, Francesco ?, Carlo M.? •  decays (done) but serious inconsistencies in the database • Biological dose (D, D2 scoring)(done) • Extended voxel file format (done, backported to fluka2011.2b) • (Much) faster voxel initialization and faster run-time voxel tracking (done, backported to fluka2011.2b) • Synchrotron radiation (done) • (Anti)hyperon interactions in PEANUT (initial implem.) (done) • Errors/isospin violations in NN, KN Hadrin channels(done) • IGRF11 Earth magnetic field for GCR’s (done) • New Earth magn. field treatment/options for GCR’s (done) • New estimators LGH-IONS, HVY-IONS, E+E-GAMM (done) • Optical photons as beam (done, to be tested) Vincenzo?? AF/PS, ELI, 21/11/2013

  11. Other developments/proposals: • Reworking phnuc. ’s in the delta regionAlberto, Carlo, Alfredo • Reworking the quasi-deuteron region (ongoing, see later) • Light ions (d,3H,3He,) peripheral interactions in rQMDFrancesco ?, Alfredo, ?? • Isomer production by low energy neutronsMatteo ?, ?? • === up to this point (hopefully) for the release === • NIEL and DPA following bremss. and pair production George ?? • Impact ionization (at least for K,L by e+/e-) (started, important) • (Photo)fission, angular momentum… (ongoing) • Refined Glauber cross sections for light nuclei (ongoing) • Coherent pion production in  interactionsPaola, ?? • === up to this point some manpower available === • Electro-nuclear interactions George ?? • Electric field (started) • Light ion elastic interactions (nothing!) • Electron interaction below 1 keV(nothing! help from outside?) • Special neutron sources for Pu-Be, Am-Be sources (nothing!) • Transition radiation (nothing!) AF/PS, ELI, 21/11/2013

  12. Photonuclear interactions: • Discovered and ~fixed one issue with low quasi-deuteron cross sections Alberto, Alfredo • Revision of some GDR cross sections (eg208Pb) which showed significant inconsistencies with other evaluations Alberto ?, ?? • Improvements of the (,x) cross sections in the resonance region up to few GeV’sAlberto, Carlo M. • New spin-parity treatment in evaporation extended beyond the Fermi-breakup for low excitation (,x) reactions! Alfredo, Paola, ? AF/PS, ELI, 21/11/2013

  13. How to accelerate FLUKA calculations for PET and prompt photon calculations • Optimization of production and transport thresholds (implemented) • Inelastic interaction biasing (implemented) • Further “tuning” as a function of particle energy Alfredo, ? • Multiple “replicas” of radioactive decays (implemented) • Direction biasing of annihilation photons (implemented) • “annular” det. biasing to be added (in progress) Cristina, Roberto N. ? • Multiple “replicas” of final (gamma) de-excitation (work in progress) ?? • Direction biasing of de-excitation photons including “annular” det. biasing(work in progress) ?? • Overall testing and benchmarking ?? AF/PS, ELI, 21/11/2013

  14. Next release: new defaults • Heavy evaporation (or an intermediate setting) as default • Peanut up to high energies as default • Coalescence as default: deuterons badly needed! • All urgent priorities + … • New (DAMAGE) and/or revised defaults (ongoing) • Which other ongoing development beyond “green” ones is felt necessary (impact ionization…)? • Which date (in June, Dec 13 – Feb 14, now Mar 14 –May 14 before impossible) • Which testing procedures? • Which versions (g77, gfortran >= 4.6, Mac??)? AF/PS, ELI, 21/11/2013

  15. Testing and documentation: • Provide (reasonably complex, no user routines if possible) input cases for testing and code stressing • Run those tests, possibly also with the procedure for random number consistency checks • Compare with previous version results, spotting possible unexpected behaviours • Test and document the new features AF/PS, ELI, 21/11/2013

  16. end AF/PS, ELI, 21/11/2013

More Related