The matrix method: state of the art & Koln experiment A. Olariu (PhD), P. Désesquelles two C versions one Matlab version N hits x y z e thresholds x y z e X. Grave J. Ljungvall
Preamplifier (modifications % M. Schlarb) Variable time step Steps in the current signal:
Difficulty: nb hits ? Radford (a posteriori) Neural network (a priori) Slope changes (a priori) Matrix (a posteriori) –Radford method –Analyse of the resulting signal :
Underdetermined problem
Precisions (mm) MGS4 MGS Geant4 noise : V + préamp
Next steps for the matrix method Tests and velocity of the C code (A.O.) Comparison Radford/matrix/Miniball codes (J.L.) Improvement of the performances (P.D.) Dispatcher (new PhD ?) Number of interactions (F.C.)