The MYTHEN detector for X-ray powder diffraction experiments at the Swiss Light Source.
The MYTHEN single-photon-counting silicon microstrip detector has been developed at the Swiss Light Source for time-resolved powder diffraction experiments. An upgraded version of the detector has been installed at the SLS powder diffraction station allowing the acquisition of diffraction patterns over 120 degrees in 2theta in fractions of seconds. Thanks to the outstanding performance of the detector and to the calibration procedures developed, the quality of the data obtained is now comparable with that of traditional high-resolution point detectors in terms of FWHM resolution and peak profile shape, with the additional advantage of fast and simultaneous acquisition of the full diffraction pattern. MYTHEN is therefore optimal for time-resolved or dose-critical measurements. The characteristics of the MYTHEN detector together with the calibration procedures implemented for the optimization of the data are described in detail. The refinements of two known standard powders are discussed together with a remarkable application of MYTHEN to organic compounds in relation to the problem of radiation damage.
Bergamaschi
Anna
A
Paul Scherrer Institut, CH-5232 Villigen, Switzerland. anna.bergamaschi@psi.ch
Cervellino
Antonio
A
Dinapoli
Roberto
R
Gozzo
Fabia
F
Henrich
Beat
B
Johnson
Ian
I
Kraft
Philipp
P
Mozzanica
Aldo
A
Schmitt
Bernd
B
Shi
Xintian
X
D002045:Bupivacaine / Q000737:chemistry; D033362:Powder Diffraction / Q000295:instrumentation* / Q000379:methods; D017356:Synchrotrons / Q000295:instrumentation; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods
D002045:Bupivacaine