X-band Transverse Deflecting Cavity for Longitudinal Profile Measurements
![TCAV Image](/sites/default/files/styles/embed/public/2023-04/2012-059-3532-facet_6947159761_o.jpg?itok=OI9sMz4k)
Installed in 2012, this deflecting cavity is upstream of all experiments in sector 20 of FACET.
The deflecting cavity allows single‐shot measurement of longitudinal profile.
• This is vital for PWFA experiments.
• This is also extremely useful (and desired) by other experiments too.
• This allows measurement of sliced (horizontal) emittance.
• It can resolve the separation between the drive & witness bunches for PWFA and DWA.
• Additional experimental use includes radially offsetting witness bunch for radiation studies.
• It can also tilt bunch for hosing instability studies.
![tcav](/sites/default/files/styles/embed/public/2023-05/TCAV.jpg?itok=q2vzqC5j)