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Figure 6
(a) Transmission as a function of the beam lateral position for the 1.24 µm 4H-SiC and 12 µm pc-diamond XBPMs using a 50 µm × 50 µm beam at 8 keV photon energy at the OPTICS beamline. The membrane shows 97% and 94% transmission (±5%) while the substrate is below 30 ± 5%. (b) Charge collection efficiency for the 10.5 µm 4H-SiC and pc-diamond showing 4H-SiC XBPMs collecting all carriers already at zero bias. Note that a 10.5 µm 4H-SiC is used here to allow external biases comparable with that used for pc-diamond.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 1| January 2019| Pages 28-35
https://doi.org/10.1107/S1600577518014248
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