-//* ipbite = flag describing the shape of the momentum *
-//* distribution of the beam *
-//* 0=rectangular, 1=gaussian *
-//* idiv = flag describing the shape of the angular *
-//* divergence distribution of the beam *
-//* 0=rectangular, 1=gaussian *
-//* ixspot = flag describing the shape of the spatial *
-//* distribution of the beam spot in x-direction *
-//* 0=rectangular, 1=gaussian *
-//* iyspot = flag describing the shape of the spatial *
-//* distribution of the beam spot in y-direction *
-//* 0=rectangular, 1=gaussian *
-//* beawei = weight of the beam particles *
+//* ldpgss = true for a gaussian momentum distribution of the *
+//* beam particles, false for a rectangular one *
+//* ldvgss = true for a gaussian angular divergence distribution *
+//* of the beam particles, false for a rectangular one *
+//* ldxgss = true for a gaussian spatial distribution of the beam *
+//* spot in the x-direction, false for a rectangular one *
+//* ldygss = true for a gaussian spatial distribution of the beam *
+//* spot in the y-direction, false for a rectangular one *