TY - CPAPER
AU - Stadler, M.
AU - Baldinger, R.
AU - Ditter, R.
AU - Keil, B.
AU - Marcellini, F.
AU - Marinkovic, G.
AU - Roggli, M.
AU - Rohrer, M.
TI - Development of the SwissFEL Undulator BPM System
J2 - Proc. of IBIC2014
AB - For SwissFEL, two types of cavity BPMs are used. In the linac, injector and transfer lines, low-Q dual-resonator cavity BPMs with a loaded Q (QL) of ~40 and 3.3GHz mode frequency allow easy separation of the two adjacent bunches with 28ns bunch spacing. For the undulators that receive only single bunches from a beam distribution kicker with 100Hz repetition rate, dual-resonator BPM pickups with higher QL are used. The baseline version for the undulator BPMs is a stainless steel pickup with QL=200 and 3.3GHz frequency. In addition, an alternative version with copper resonators, QL=1000 and 4.8GHz frequency has been investigated. For both pickups, prototypes were built and tested. The status of pickup and electronics development as well as the latest prototype test results are reported.
PB - JACoW
CY - Geneva, Switzerland
SP - 675
EP - 679
KW - pick-up
KW - cavity
KW - undulator
KW - electronics
KW - linac
DA - 2014/10
PY - 2014
SN - 978-3-95450-141-0
UR - http://jacow.org/IBIC2014/papers/wepd13.pdf
ER -