January 2021 - Gsecars_users - millenia.cars.aps.anl.gov

Virtual Tutorial at GSECARS - Crystal Truncation Rod Diffraction
by Joanne Stubbs 27 Jan '21

27 Jan '21

GeoSoilEnviroCARS, the University of Chicago, at the Advanced Photon Source invites you to attend a half-day workshop entitled: Virtual Tutorial on Crystal Truncation Rod Diffraction for Atomic-Scale Surface Structure Measurement Metal oxide surfaces mediate reactions that control the chemistry of natural waters, battery technologies, catalysis, nuclear fuels, and numerous other natural and engineered systems. Molecular-level measurements of interfacial structures are essential to developing accurate models of natural phenomena and optimizing technologies. However, many available techniques rely on ultra-high vacuum environments, precluding measurements under realistic conditions. In contrast, crystal truncation rod (CTR) diffraction can be conducted in complex environments including gases, liquids, and hazardous material containments. The technique reveals atomic-scale interfacial structures, relaxations, and adsorbate positions on single-crystal surfaces and at buried interfaces. During this virtual “hands-on” workshop we will demonstrate all aspects to CTR data collection and analysis. Participants will have the opportunity to “walk” into the experimental station with us and observe firsthand how we mount, align, and measure the surface of a metal-oxide crystal. As the data rolls in we will perform real-time data reduction followed by quantitative fitting of the collected CTR data leading to a model that reveals the interface’s atomic relaxations and structural perturbations driven by interfacial chemistry. Date: March 31, 2021 Time: 1-5 pm Central Time Instructors: Joanne E. Stubbs and Peter J. Eng Preliminary Schedule 1:00 Introduction to beamline 13-BM-C 1:20 Introduction to crystal truncation rods 1:40 Overview of data collection process 2:00 Break 2:10 Collect CTR data from hematite sample 3:10 Break 3:20 Data integration 3:40 Fit structural model to data 4:30 Discussion 5:00 End Register at https://gsecars.uchicago.edu/gsecars-crystal-truncation-rod-scattering-virt… Please direct any questions to Joanne Stubbs at stubbs(a)cars.uchicago.edu<mailto:stubbs@cars.uchicago.edu>

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Steering Committee for the "Management and Operations of synchrotron-hosted analytical capabilities for Earth sciences research"
by Mark Rivers 15 Jan '21

15 Jan '21

Steering Committee for the "Management and Operations of synchrotron-hosted analytical capabilities for Earth sciences research" On November 19, 2020 we sent a message soliciting nominations for members of a Steering Committee for the "Management and Operations of synchrotron-hosted analytical capabilities for Earth sciences research". We thank the community for submitting more than 40 nominations. The COMPRES Executive Committee and GSECARS senior staff ranked nominations for at-large community members of the steering committee with consideration to demographics (gender, career stage), areas of expertise (technique and science), and synchrotrons and other types of institutions represented. The COMPRES Executive Committee and GSECARS senior staff voted for 4 additional members from each of their current leadership. We are very pleased to announce that the following people have agreed to serve as members of the committee. Pamela Burnley, University of Nevada, Las Vegas Elizabeth Cottrell, Smithsonian National Museum of Natural History Tom Duffy, Princeton University Paul Fenter, Argonne National Laboratory Benjamin Gilbert, Lawrence Berkeley National Laboratory Peter Heaney, Pennsylvania State University Satish Myneni, Princeton University Wenlu Zhu, University of Maryland In addition the following 8 people from the GSECARS staff and the COMPRES Executive Committee have also agreed to serve on the committee. Carl Agee, University of New Mexico Antonio Lanzirotti, University of Chicago Mark Rivers, University of Chicago Anat Shahar, Carnegie Institution for Science Joanne Stubbs, University of Chicago Elizabeth Thompson, Sewanee: The University of the South Yanbin Wang, University of Chicago Heather Watson, Union College The NSF Dear Colleague Letter "Competition of Management and Operations of synchrotron-hosted analytical capabilities for Earth sciences research" has been modified to extend the timetable. It originally said that the solicitation was expected to be released in the fourth quarter of 2020, and the new proposal to be due in the second quarter of 2021. The revised version changes these dates by one quarter, so the solicitation is expected in the first quarter of 2021, and the proposal due in the third quarter of 2021. Mark Rivers, Co-Director GSECARS (rivers(a)cars.uchicago.edu<mailto:rivers@cars.uchicago.edu>) Carl Agee, COMPRES President (agee(a)unm.edu<mailto:agee@unm.edu>)

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Last call for registration for rock deformation workshop
by Mark Rivers 13 Jan '21

13 Jan '21

In-Situ Rock Deformation Research Coordination Network (https://www.isrdrcn.org/) announces a science workshop for the week of Jan 18 - 22, 2021. The main goals of this workshop are: 1) Integration of beamline technologies and experimental rock deformation; 2) Identify outstanding questions and future research directions. We anticipate several white papers on new research visions based on community input after the workshop. Presentations will be given in virtual meeting format on the afternoons of Jan 18 and 19, 2021. Talk materials will be available for online viewing between Jan 20 and onward. A virtual discussion meeting will be held on Jan 22, 2021, to discuss potential new science of rock deformation with synchrotron techniques, feasibility, and implementation. Registration will remain open until Jan. 14. Please register ASAP at https://www.isrdrcn.org/. ISRD Workshop Committee

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In-Situ Studies of Rock Deformation Science Workshop
by Mark Rivers 07 Jan '21

07 Jan '21

Dear GSECARS Users, In-Situ Rock Deformation Research Coordination Network (https://www.isrdrcn.org/) announces a science workshop for the week of Jan 18 - 22, 2021. The main goals of this workshop are: 1) Integration of beamline technologies and experimental rock deformation; 2) Identify outstanding questions and future research directions. We anticipate several white papers on new research visions based on community input after the workshop. Presentations will be given in virtual meeting format on the afternoons of Jan 18 and 19, 2021. Talk materials will be available for online viewing between Jan 20 and onward. A virtual discussion meeting will be held on Jan 22, 2021, to discuss potential new science of rock deformation with synchrotron techniques, feasibility, and implementation. We have attached a tentative agenda for the workshop. Please save the dates. More details will be forthcoming. Thanks, Mark Rivers Yanbin Wang

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