The two Aramis beamlines at SwissFEL are currently under commissioning, first pilot experiments have already been carried out. In total we have 10 mirror systems, 6 offset mirrors and 4 mirrors in KB [1] configuration. We use bilayer mirror coatings to handle the single shot damage challenge at FELs. The optics has to keep the coherence of the FEL pulses. We use flat mirrors with figure errors on the single nm level in two-actuator mechanical bender systems. The vertically deflecting KB mirrors have a polished-in gravity sag compensation. The performance of the mirror systems has been verified with X-rays.
REFERENCES
1.
P.
Kirkpatrick
and A. V.
Baez
, J. Opt. Soc. Am.
38
, 774
–776
(1948
).2.
C. J.
Milne
et al, Applied Sciences
7
, p. 720
(2017
).3.
S. P.
Hau-Riege
, R. A.
London
, A.
Graf
, S. L.
Baker
, R.
Soufli
, R.
Sobierajski
, T.
Burian
, J.
Chalupsky
, L.
Juha
, J.
Gaudin
, J.
Krzywinski
, S.
Moeller
, M.
Messerschmidt
, J.
Bozek
, and C.
Bostedt
, Optics Express
18
, p. 23934
(2010
).4.
M.
Störmer
, F.
Siewert
, and H.
Sinn
, Journal of Synchrotron Radiation
23
, 50
–58
(2016
).5.
R.
Follath
, U.
Flechsig
, C.
Milne
, J.
Szlachetko
, G.
Ingold
, B.
Patterson
, L.
Patthey
, and R.
Abela
, AIP Conference Proceedings
1741
, 020009
–1
(2016
).6.
F.
Schäfers
and M.
Krumrey
, “REFLEC - A program to calculate VUV and soft x-ray optical elements and synchrotron radiation beamlines,” Technischer Bericht TB
201
(BESSY
, Berlin
, 1996
).7.
A.
Meents
, B.
Reime
, N.
Stuebe
, P.
Fischer
, M.
Warmer
, D.
Goeries
, J.
Roever
, J.
Meyer
, J.
Fischer
, A.
Burkhardt
, I.
Vartiainen
, P.
Karvinen
, and C.
David
, Proc. SPIE
8851
, 8851
–8851–7
(2013
).
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