view article
Figure 5
Jungfrau detector (1.5M, three modules) powder diffraction data from Ti3O5. Left: average pattern of 200 pulses recorded at 6.6 keV third harmonic using the Aramis pink beam at 2.2 keV fundamental SASE energy. The image is generated by femtosecond grazing-incidence powder diffraction of a Ti3O5 nanoparticle pellet. Right: histogram over all pixels in all 200 patterns averaged on the left. The digital data are calibrated to equivalents of single-photon energy. The peak at 0 keV shows the noise distribution of the unexposed pixels (`zero photon peak'), very well separated from the lowest-energy photons measured at the Ti Kα emission (4.5 keV). Those can, in turn, be well distinguished from the elastically scattered third harmonic photons at 6.6 keV, which allows the data to be filtered during analysis for, for example, the fluorescent background signal. Pixels which have been hit by multiple fluorescence and/or scattered photons can be distinguished as labelled in the histogram.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 3| May 2019| Pages 874-886
https://doi.org/10.1107/S160057751900331X
Follow J. Synchrotron Rad.
Sign up for e-alerts
E-alerts
Follow J. Synchrotron Rad. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS