EMBL does not provide backup of external user's data. The data are routinely deleted from the disks three working days after visitors leave EMBL unless explicit arrangements have been made with the EMBL staff supervising the project or with the system administrator. External users are themselves totally responsible for securing their data and must provide their own tapes. Visiting users should check with their local system administrator which backup media are supported at home. The relative intensity estimates are very approximate.
Relative efficiency accounts for both beam line intensity and the read out time.
The X31 monochromator has been upgraded. The average read out times for the 165 mm MAR CCD detectors are about 5 sec, for the 345 mm MAR IP scanners 60 sec. All four beamlines are in full time operation.