Speaker
Nicolas Pilet
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.1112.pdf
X-ray crystal spectrometers based on HPC detector technology
N. Pilet1, T. Donath1, B. Lyu2, L.F. Delgado-Aparicio3, N. Pablant3
1
DECTRIS Ltd., Baden-Daettwil, Switzerland
2
Institute of Plasma Physics, Chinese Academy of Science ASIPP, Hefei, Anhui, China
3
Princeton Plasma Physics Laboratory, Princeton, NJ, USA
Hybrid Photon Counting (HPC) detector technology has advanced almost all X-ray based
analytical methods used in basic research and industrial processes in the last decade. Besides
their use in X-ray diffraction and scattering, HPC detectors have enabled progresses in many
other fields including X-ray crystal spectroscopy.
X-ray crystal spectroscopy is an essential diagnostic for monitoring plasmas owing to its
capability of detecting emission lines of impurities (Be, C, O, Fe, Ni, Cu, W) and dopant (Ar,
Ne). Princeton Plasma Physics Laboratory has integrated HPC technology into X-ray
Imaging Crystal Spectrometers (XICS) for routinely detecting line emission from highly
charged elements including Ar16+, Ar17+, Fe 24+ and Mo32+ amongst a selection of other
lines. Noise-free performance, energy discrimination, a sharp point spread function, a high
frame rate, a high dynamic range, in-vacuum operation, a large detectable energy range
(1.8-30 keV) and radiation hardness are underlying criteria for the superiority of PILATUS3,
an HPC detector developed and manufactured by DECTRIS and successfully implemented
in various plasma X-ray crystal spectrometers.
Here we present an overview of the usage of PILATUS3 in plasma spectroscopy and
highlight the PILATUS3 900K-IPP, an instrument specifically designed for the study of
fusion plasma at the EAST tokamak. We will show that the fast readout time of PILATUS3
of only 0.95 ms and its high frame rate of 500 Hz can enable real-time plasma condition
feedback.
PILATUS3 900K-IPP in-vacuum detector for X-ray plasma spectroscopy
