The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF
AU - Keil, B.
AU - Baldinger, R.
AU - Ditter, R.
AU - Engeler, D.
AU - Koprek, W.
AU - Kramert, R.
AU - Marcellini, F.
AU - Marinkovic, G.
AU - Roggli, M.
AU - Rohrer, M.
AU - Stadler, M.
AU - Treyer, D.M.
ED - Liu, Zhengzheng
ED - Lidia, Steven
ED - McCausey, Amy
ED - Schaa, Volker RW
TI - First Beam Commissioning Experience With The SwissFEL Cavity BPM System
J2 - Proc. of IBIC2017, Grand Rapids, MI, USA, 20-24 August 2017
C1 - Grand Rapids, MI, USA
T2 - International Beam Instrumentation Conference
T3 - 6
LA - english
AB - SwissFEL is free electron laser facility designed to produce FEL radiation at wavelengths from 0.1 to 5 nm. The beam commissioning of the hard X-ray undulator line ("Aramis") started 10/2016, and first lasing was observed in 12/2016. Presently, a 2nd undulator line ("Athos") for soft X-rays is being constructed, with 1st beam scheduled for mid 2019. In the injector, linac and beam transfer lines, 95 low-Q cavity BPMs operating at 3.3 GHz are used that were designed to support the future two-bunch operation mode with 28 ns bunch spacing and 100 Hz repetition rate. The undulator lines will only be operated with single bunches by means of a fast beam distribution kicker system, and were thus equipped with high-Q cavity BPMs operating at 4.9 GHz. The BPMs are not only used for beam trajectory optimization, but e.g. also for beam energy measurements (using standard cavity BPMs in the bunch compressors and beam dumps), beam charge and transmission measurements, or improvement of the performance of other monitors (e.g. wire scanners for profile measurement). This paper will report first operation experience with the BPM system, including a performance comparison of low-Q and high-Q BPMs.
PB - JACoW
CP - Geneva, Switzerland
SP - 251
EP - 254
KW - ion
KW - FEL
KW - pick-up
KW - FPGA
KW - electron
DA - 2018/03
PY - 2018
SN - 978-3-95450-192-2
DO - 10.18429/JACoW-IBIC2017-TUPCF17
UR - http://jacow.org/ibic2017/papers/tupcf17.pdf
ER -