Xbox
CERN operates a number of X-band klystron-based test stations working at CLIC main linac frequency (11.944 GHz).
Xbox 1 | Xbox 2 | Xbox 3 |
 |  |  |
50 MW/1.5 ms pulsed power 120 MW/250 ns compressed pulse 50 Hz repetition rate RF signals Dark current measurements Accurate phase E-beam capabilities Connects to CTF3/CLEAR | 50 MW/1.5 ms pulsed power 120 MW/250 ns compressed pulse 50 Hz repetition rate RF signals Dark current measurements Accurate phase Radiation measurements Two DUT feeding with variable power splitting Input phase variation | 6-10 MW/5 ms pulse power 40-60 MW/100 ns compressed pulse Up to 400 Hz repetition rate 2 DUT RF signals Dark current measurements Accurate phase Radiation monitors |
Technology initially developed for CLIC has been expanding on recent years with projects inside and outside high energy physics running high-gradient X-band systems. Some examples of those systems can be found in the following table
| Systems | Test stands | Operating systems |
| Laboratory | NEXTEF @ KEK EuPRAXIA @ SPARC_LAB X-lab @ Melbourne university X-band high power test stand @Tsinghua NLCTA-XTA, Klystron lab @ SLAC | FERMI @ ELETTRA SWISS FEL @ PSI SXFEL @ Shanghai LCLS CLARA @ STFC Daresbury FLASH Forward and FLASH2 @ DESY ARES @ DESY |
Xboxes are part of EURO-LABS !!
The so-called Xboxes or X-band facilities are part of EURO-LABS, a network of research infrastructures supporting research through accelerators.