Indexing program
****************

INDEX
*****

You have to run a separate program index and have an
input file called index.dat in the SAME directory.



File index.dat
**************

sample LiNbO3
5.148 5.148 13.863 90.0   90.0  120.0  1.180 4.5                   a,b,c,alpha,beta,gamma,wl,max-deviation in deg (use values around 2-5 degrees)
27.41 12.13 89.41 350.00  1.1 612                                  2-theta,omega,chi,phi, max. delta 2-theta (approx. 0.5-1 deg), comments (numbers only)
63.97 1.29 90.63 350 1.1 603                
32.997 17.31 180.45 151.50 1.1  623
18.997 9.06 178.92 200.76 1.1 628
0                                                                  0= end of file





execution:

index >! index.lis    (executes using index.dat as input, asks for number of reflections)
4             

******************
The file index.lis gives you first the possible indexation of all the reflections (if delta 2-theta is small, this number is small).
In a second step, the program prints at the end all combinations of hkl's, which are within the limit you have given
(max-deviation, in our example 4.5). The program does not taken into account extinction rules such as 00h only h=4. Therefore check,
if the combinations is allowed in your spacegroup.   




J. Schefer 2.2.2010