Prof. Stanislav V. Sinogeikin [DAC Tools, LLC, Naperville, Illinois, USA]

Title: Advanced synchrotron techniques, sample environments and supporting facilities for high-pressure high/low temperature research at HPCAT, APS

Time: 10:30 - 11:30 AM, Thursday, November 8, 2018

Place: Conference room A4, HPSTAR (Changchun)

Host: Haozhe Liu

Polycom: 02120003

Abstract:

High Pressure Collaborative Access Team (HPCAT) is dedicated to advancing cutting edge, multidisciplinary, high pressure science and technology using synchrotron radiation at Sector 16 of the Advanced Photon Source (APS) of Argonne National Laboratory. At HPCAT an array of novel x ray diffraction and spectroscopic techniques has been integrated with high pressure and extreme temperature instrumentation for studies of structure and materials properties at extreme conditions. HPCAT consists of four active independent beamlines performing a large range of various experiments at extreme conditions. 16BM B beamline is dedicated to energy dispersive (Paris Edinburgh press) and white Laue X ray diffraction. The measurements include amorphous and liquid structure, white beam radiography, and sound wave velocity of solid and liquid materials. 16BM D is a monochromatic diffraction beamline for powder and single crystal diffraction at high pressure and high low temperature, with an additional capability of XANES spectroscopy. The ID beamline has two independent canted undulators and LN cooled Si monochromators providing a large range of energies. 16IDB is a microdiffraction beamline mainly focusing on high pressure (megabar range) static and time resolved powder and single crystal diffraction in Diamond Anvil Cell (DAC) at high (laser and resistive heating) and low temperature. 16ID D beamline is dedicated to x ray scattering and spectroscopy research of materials under high pressure in DAC. The available techniques include nuclear forward scattering, nuclear resonant inelastic scattering, x ray inelastic scattering, x ray spectroscopy, X ray emission. Many of these measurements can be done at low temperature, with in situ pressure measurement, or at high temperature with resistive or portable laser heating. Over the last several years a number of supporting facilities have been developed and implemented to expand the available P T t range of the experimental conditions, increase efficiency and productivity of the beamlines by automating pressure control, improve the quality of experimental data, and integrate additional methods of sample characterization with synchrotron investigations. The supporting facilities include devices for remote and automatic pressure control and data collection in DACs during synchrotron experiments, devices for time resolved synchrotron measurements (dynamic DAC), multiple DAC heaters and cryostats for various synchrotron experiments, portable online and stationary optical systems for ruby fluorescence pressure measurements and in situ ex city Raman sample characterization, sample loading and preparation facilities, and others. All these advanced synchrotron techniques, as well as supporting facilities, employed at HPCAT, as well as available from DAC Tools LLC, will be presented and discussed.

Biography of the Speaker:

• Education

Ph.D. in Geophysics (May 1999). Geology Dept., University of Illinois at Urbana Champaign. Thesis: Elasticity of mantle minerals: composition, pressure and temperature dependence.

M.S. in Geophysics (April 1996). Geology Dept., University of Illinois at Urbana Champaign. Thesis: Elasticity of tetragonal end member majorite and solid solutions in the system Mg4Si4O12 Mg3Al2Si3O12..

Diploma (M.S.) in Petrology (June 1993). Geology Dept., Moscow State University, Russia. Thesis: The Genesis of Apatite Deposits of Khibina Massif

• Positions

July 2018 – current. Owner / manager. DAC Tools, LLC, Naperville, Illinois.

July 2013 – July 2018. Associate Director. HPCAT, Geophysical Laboratory, Carnegie Institution of Washington.

September 2010 – current. Adjunct Professor, Physics Department, University of Nevada at Las Vegas.

June 2009 – July 2018. Owner / manager. Diamond Anvil Cell Tools, Naperville, Illinois.

January 2006 – July 2013. Beamline Scientist. HPCAT, Geophysical Laboratory, Carnegie Institution of Washington.

February 2002 – January 2006. Research Scientist. Geology Dept., University of Illinois at Urbana-Champaign.

1999 - 2002. Visiting Assistant Professor / Visiting Scholar. Geology Dept., University of Illinois at Urbana-Champaign.

1994 - 1999. Graduate Student/Research Assistant/UIUC fellow. Geology Dept., University of Illinois at Urbana-Champaign.

1998 - 2005. Research Scientist. Institute of Experimental Mineralogy, Chernogolovka, Moscow dist., Russia.

1993 - 1998. Research Assistant/ Junior Research Scientist. Institute of Experimental Mineralogy, Chernogolovka, Moscow dist,. Russia.

1986 - 1993. Undergraduate/Diploma student, Geology Dept., Moscow State University, Moscow, Russia.