TY - JOUR
T1 - A portable on-Axis laser-heating system for near-90° X-ray spectroscopy
T2 - Application to ferropericlase and iron silicide
AU - Spiekermann, Georg
AU - Kupenko, Ilya
AU - Petitgirard, Sylvain
AU - Harder, Manuel
AU - Nyrow, Alexander
AU - Weis, Christopher
AU - Albers, Christian
AU - Biedermann, Nicole
AU - Libon, Lelia
AU - Sahle, Christoph J.
AU - Cerantola, Valerio
AU - Glazyrin, Konstantin
AU - Konopkova, Zuzana
AU - Sinmyo, Ryosuke
AU - Morgenroth, Wolfgang
AU - Sergueev, Ilya
AU - Yavas, Hasan
AU - Dubrovinsky, Leonid
AU - Tolan, Metin
AU - Sternemann, Christian
AU - Wilke, Max
PY - 2020/3/1
Y1 - 2020/3/1
N2 - A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-Axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100GPa and temperatures up to 3000K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure-Temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.
AB - A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-Axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100GPa and temperatures up to 3000K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure-Temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.
KW - extreme conditions
KW - high pressure
KW - laser heating
KW - nuclear resonant inelastic scattering
KW - X-ray emission spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85081584912&partnerID=8YFLogxK
U2 - 10.1107/S1600577519017041
DO - 10.1107/S1600577519017041
M3 - Article
C2 - 32153280
AN - SCOPUS:85081584912
VL - 27
SP - 414
EP - 424
JO - Journal of Synchrotron Radiation
JF - Journal of Synchrotron Radiation
SN - 0909-0495
ER -