DCCTs are our primary way of monitoring the current on our big magnets, important magnets; these include the FS2 dipoles, BDS dipoles, and the dipoles in the Fragment Separator. You will note that there is no Enterprise training competency, or course, on this subject, meaning that the only record of completion that we have is on the OIC training checklist. This also means that the only training material that we have is a couple of DCC documents that weren't exactly made for their readability. There is one PowerPoint that can be found here that goes over the procedure on how to set the DCCTs quite well, but there is no information telling you what the threshold should be set to. In fact, there is no clear wording in any document that tells operators exactly what to set the DCCT threshold to. So, this document will attempt to instruct how to do this.

Currently operators are setting the DCCTs using the following steps:

1. Disarm DCCT, note the magnet setpoint
2. Set the negative and positive thresholds to 0.2% pf current magnet setpoint
3. Clear the DCCT alarm, arm the DCCT

Most operators use their phone calculator or their computer calculator to make this calculation, the calculation usually fallows this syntax:

• (Current magnet setpoint) * 0.002 = threshold

• DCCT Operation instructions