1. What trim settings should I use?

In general the following guideline can be followed: 

  • from 5keV -  7keV    X-ray energy         TrimCr
  • from 7.1keV -  12keV  X-ray energy      TrimCu 
  • from 12.1keV - 17.5keV  X-ray energy   TrimCu & and after the trimming setting the threshold to 50% of the incoming energy (with the command -kthresh ˂f˃) 
  • from 17.6keV and more X-ray energy    TrimMo & and after the trimming setting the threshold to 50% of the incoming energy (with the command -kthresh ˂f˃) 
The trimming is not so strict and if one has small changes of a few 100eV in the energy nothing has to be changed. In general, it is trade off between efficiency and noise. As lower the threshold energy as more prone to noise the system gets.

2. The communication with the DCS does not work, what can I do?

The DCS hosts an embedded Linux system. The DCS is delivered either with DHCP running or with a fixed IP (default The initial configuration of your system is described on the system information sheet under the keyword IP-Address. If your DCS is configured with DHCP running, ask your IT administrator for the current IP address. The MAC-Address and the hostname of your DCS are described on the system information sheet with the keywords MAC-Address and Hostname.

Try pining the current DCS' IP. If there is no responce, confirm that power is applied and that the ethernet cable is correctly connected. If you previously changed the IP setting of the DCS you must contact it with exactly this IP address. If you lost the current IP setting contact support@dectris.com providing the serial number of the System.