- Table of contents
- NuMI Beam Simulations
NuMI Beam Simulations¶
This area is devoted to work on the simulation of the NuMI Beamline. This wiki should serve to facilitate those efforts by documenting how to get, configure and run the code.
|g4numi|| a pure
|flugg|| uses the same
|gnumi|| the obsolete
|pbeam||a fast FORTRAN based simulation (also obsolete)|
|mars|| an alternative simulation (while
The most commonly used output of the first three of the simulations is an ntuple that represents hadrons and muons that decay to give neutrinos. At present these give 4 different variants of the ntuple (Minerva's version of
g4numi is not reflected in the mainline branch of the code). These ntuples are very similar in form but not exactly interchangeable in general. The
GENIE neutrino interaction generator can by default read all three (but not the Minerva variant without modification). Ongoing work is has a long-term goal of migrating the first two simulations (
flugg) to a common, extensible ntuple format: Dk2nu
The names of simulation configurations take the following form: [l/m][e/n][nnn]z[nnn]i
- [l/m]: l = low energy horn 2 position, m = medium energy horn 2 position
- [e/n]: e = MINOS target, n = NOvA target. In the event of target design changes, we have 24 letters left in the alphabet
- [nnn]z = pull back (unchanged for MINOS target, relative to nominal pos. for NOvA target)
- [nnn]i = horn current in kA (same as for MINOS)
A standard MINOS run would have been le010z185i; a standard NOvA run will be mn000z200i.
Files, Files, Files¶
Dude, where's my code?¶
Instructions for: Access to the repository
is the followup on the TDR; contains later information; section 4.4 has diagrams, photos and references to CAD drawing numbers that might be of particular interest.
is a source of "released" CAD drawings; try this, but it is an incomplete source. To access drawings click on "query" on left; enter a search string. If you have a drawing number try that; otherwise try strings involving names such as "numi" and "horn", etc. [VPN in to access]