いままでのコードをふくめ、その比較がおこなわれた。
ここをみよ。
Comparisons of the performance between ILC simula- tions codes are well documented [1, 2, 3, 4]. The gen- eral conclusion is that BMAD [5], LIAR [6], Merlin [7], PLACET [8] and MAD [9] simulate the emittance dilu- tion in the ILC main linac consistently. The purpose of this study is to extend the simulation crosschecking to in- clude the explicit performance of a specific static Beam- Based Alignment (BBA) algorithm. DFS was chosen as it is the most complex and widely used of the BBA meth- ods. Details of the DFS method used can be found in [10]. Three new codes are now active in ILC Low Emittance Transport (LET) simulations CHEF [11], Lucretia [12] and SLEPT [13]. One of these new codes, SLEPT, has been in- cluded in the following analysis. It was decided that the TESLA TDR lattice would be the benchmarking lattice. The purpose of this study was not to determine the abso- lute alignment requirements or absolute DFS performance but rather to compare the simulation codes and DFS im- plementations so the choice of the lattice was rather arbi- trary. Some codes track macroparticles (second moments) whereas others track a distribution of single particles (first moments). The number of particles tracked also varies be- tween codes.