Strategy

After screening your crystal, make sure you have Autostrategy ticked on the Screening tab, then go to the Strategy Information tab. Fill in the following criteria:

• Type of data you are collecting. Options are:

  • Anomalous

  • Non-Anomalous

  • P1

• Minimum desired completeness

• Angle to add to wedge. This is the data to add to the wedge proposed by the strategy. The default (and our recommendation) is to add 60 degrees, but any number of zero and above can be used.

• The dataset ID. This is the run number for the screening of the crystal which you would like to get a strategy for. You will need to enter the relevant ID. This is available on the Processing webpage.

After you have filled in this information, click the “Run strategy for dataset ID” button. This will calculate a variety of strategies, and populate the data collection tab with the relevant information.. The Index for the strategy selected is also shown above the table under "Selected index”. If for any reason you want to chose a different strategy, click on your desired strategy in the table, and it will populate the Collection tab with the relevant information. The autofill can be slow, so give it a few moments.

If your crystal is in an an orientation where strategy conditions can not be met, strategy 12 will be chosen. Based on the data required for your crystal, this may still be less data than you would like to collect. In which case if you are on MX1 you should use the mini-kappa to collect more data from a different orientation. If you are on MX2 you will need to rearrange the crystal on the loop to collect more data at another orientation.