xmpl2d16, 16th 'example' data file for CPO2D

Multiple focussing of a Hemispherical Deflection Analyzer.

The HDA is set up as in test2d01.dat. There are six rays. The first three start from (r,z) = (0.0,-1.0), with angles of 0, +/-0.1 rad and with an energy of 1 eV, and the next three with an energy of 1.05 eV. The focal points of the 2 sets are specified as (r,z) = (0.0,1.0) and (0.0,1.1) respectively. The initial voltages on the spheres are 1.6667 and 0.6. After 12 iterations the best voltages are found to be 1.665 and 0.601, and after further iterations they become 1.6661 and 0..6024.

The following data were obtained when the memory and speed of PC's was much more limited than at present, so the available number of segments was small and the requested inaccuracies were fairly high to give a quick demonstration.

The HDA is set up as in test2d01.dat. There are six rays. The first three start from (r,z) = (0.0,-1.0), with angles of 0, +/-0.1 rad and with an energy of 1 eV, and the next three with an energy of 1.05 eV. The focal points of the 2 sets are specified as (r,z) = (0.0,1.0) and (0.0,1.1) respectively. The initial voltages on the spheres are 1.6667 and 0.6. After 12 iterations the best voltages are found to be 1.665 and 0.601, and after further iterations they become 1.6661 and 0..6024.