Illumination for coherent soft X-ray applications: the new X1A beamline at the NSLS

Winn, B.; Ade, H.; Buckley, C.; Feser, M.; Howells, M.; Hulbert, S.; Jacobsen, C.; Kaznacheyev, K.; Kirz, J.; Osanna, A.; Maser, J.; McNulty, I.; Miao, J.; Oversluizen, T.; Spector, S.; Sullivan, B.; Wang, Y.; Wirick, S.; Zhang, H.

doi:10.1107/S0909049500012942

Figure 8
Calculated intensity incident on an 80 µm-diameter zone plate at 1.2 m from the exit slit for a 250 mA circulating electron beam and for the entrance-slit sizes indicated. The exit slit is set for coherence parameter p = 1. Note that the measured intensity in the zone plate focus is reduced by additional factors including the zone plate focusing efficiency (typically 10%), absorption in silicon nitride windows used for vacuum isolation, zone plate mounting and detector isolation, absorption losses in any atmospheric-pressure gas through which the beam must pass, and the use of order-sorting mirrors at the lower energies.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 7| Part 6| November 2000| Pages 395-404

doi:10.1107/S0909049500012942

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