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Exercise 1

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

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Exercise 1

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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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