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Proton Beam Interaction with Cylinder: FLUKA Course Exercise Overview

This exercise from the 7th FLUKA Course (NEA, Paris, Sept. 29-Oct. 3, 2008) focuses on a proton beam impinging on a pre-defined material cylinder. Participants will download necessary example files from the course website and utilize different input formats to run simulations. Key tasks include analyzing inelastic scattering length, converting beam momentum to energy spread, determining primary particle requirements for a desired run duration, and calculating energy fractions and power loss. This hands-on experience is essential for mastering FLUKA simulations in particle physics.

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Proton Beam Interaction with Cylinder: FLUKA Course Exercise Overview

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  1. Exercise 1 7th FLUKA Course NEA Paris, Sept.29-Oct.3, 2008

  2. Ex #1 Proton beam impinging on a cylinder of pre-def material Get the source example files from the course website http://www.cern.ch/fluka-course/nea2008 Download all the ex1*.inp files to ~/work/ex1 directory Different input formats: • ex1.inpfixed card formatfree geometry format(RECOMMENDED) • ex1free.inpfree card formatfree geometry format obsolete (but supported) • ex1fix.inpfixed card formatfixed geometry format (DEFAULT) • ex1double.inpfixed card formathigh-accuracy fixed geometry format • ex1fixfree.inpfree card formatfixed geometry format

  3. Ex #1 run ex1.inp in the ex1 dir $$FLUPRO/flutil/rfluka –N0 –M4 ex1 & look at the .out file $emacs [or any editor] ex1001.out & • find the inelastic scattering length for beam particles in the target • convert the beam momentum spread into energy spread (in MeV) • determine how many primaries are needed to have a run (with 4 cycles) lasting in total as many minutes as the number of neutrons of the 6He’s isotope • find the fraction of energy leaving the system • calculate the power leaving the system for a beam current of 4mA (in S.I. units)

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