Strategy

Strategy is a program to aid in data collection strategy. You can run it after indexing the first frame using DENZO. Given the space group, it determines the spindle angle to start the data collection at. Strategy has been written by Raimond Ravelli (Bijvoetcentrum, Utrecht). John Skinner (Brookhaven National Laboratory) has written a Graphical User Interface to reduce the use of strategy to 2-button-step process.

An SGI executable of the program can be obtained by anonymous ftp from ftp.chem.uu.nl
Please mail any comments and/or questions concerning strategy to Raimond Ravelli (ravelli@embl-grenoble.fr).

Documentation

A html manual of strategy

Notes

To run the program:

Read the manual: man_strategy.html

Prepare an input file like:

          XFILE        trig1_3_001.x
          NFRAME       26
          SPACE GROUP  P3121
          FORMAT       MARBIG
          NBINS        10
          PSFILE       trig1_3.ps

Use spaces in the input file, no tabs! Furthermore, do not use the character '-' in the name of the XFILE or PSFILE.

Run the program (in batch mode) like:

       strategy <strategy.inp |tee strategy.log

Limitations:

Overlaps are not discarded.
Mosaicity is assumed to be zero.
A maximum of 6000000 spots can be calculated.

Reference:

The program is available free to academics and provided on the understanding that the author and his University are in no way liable for any consequences of errors in the programs or their documentation. Do you like the program? -> please refer to the following article:

J. Appl. Cryst. (1997). 30 p. 551-554
STRATEGY: a program to optimize the starting spindle angle and scan range for X-ray data collection
R. B. G. Ravelli, R. M. Sweet, J. M. Skinner, A. J. M. Duisenberg and J. Kroon

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