Waveguide. rms=1, l= 10.0. Goff-J. 
R a G  
100 0
3
0 0 0 0 0 0 0
0 1500 0 0.06 0 1 0
100 5000 2000 0.1 0.2 3.0  -1. 10.0
1500 3

21
10 1000 0 1 0
11 1000 0 1 0
12 1000 0 1 0
13 1000 0 1 0
14 1000 0 1 0
15 1000 0 1 0
16 1000 0 1 0
17 1000 0 1 0
18 1000 0 1 0
19 1000 0 1 0
20 1000 0 1 0
21 1000 0 1 0
22 1000 0 1 0
23 1000 0 1 0
24 1000 0 1 0
25 1000 0 1 0
26 1000 0 1 0
27 1000 0 1 0
28 1000 0 1 0
29 1000 0 1 0
30 1000 0 1 0

1200 -1200
1024 1 1024

0 1 101
10 1