On Wednesday, Kiyoshi Ueda of Tohoku University in Japan will present a talk on SCSS to SACLA: New Opportunities for Atomic, Molecular and Cluster Science at X-ray FELs. The event takes place in Building 15-253 at noon. At the soft X-ray FEL, SCSS, intense ultrafast laser pulses multiply-ionize atoms and molecules and induce complex electron dynamics unexplored so far. At the new hard X-ray FEL in Japan, SACLA, deep inner-shell ionization and sequential electronic decay cycles are repeated multiple times in heavy atoms – within the 10 femtosecond XFEL pulse duration. These fundamental studies highlight the necessity to account for electronic effects in using XFEL pulses to determinestructure.
Edgar Weckert of DESY in Germany will present the next [email protected] talk on Tuesday, Jan. 29, in Building 15-253. His lecture is titled “Photon Science at DESY: Structure and Dynamics of Matter in the Light of Brilliant Synchrotrons and FELs.” Weckert is a leading expert on structural studies using x-rays. He will discuss the latest scientific and technical developments at the DESY photon sources, including PETRA and FLASH. Weckert will also discuss the new laboratory environment being established around these sources at DESY. The event will be webcast live.
The next [email protected] seminar takes place Monday, Nov. 19, in Bldg. 15-253, with a talk by Phil Bucksbaum on “Small Molecules in Strong Fields at the Stanford PULSE Institute.” Bucksbaum will report on the latest studies of molecules in intense fields using ultrafast table-top laser sources, and the Linac Coherent Light Source x-ray free-electron laser at SLAC. The talk will be streamed live.
The next [email protected] seminar takes place Wednesday, Oct. 3, in Bldg. 15-253, with a talk by Maya Kiskinova on [email protected]: First CDI Results and New Research Opportunities Using a Seeded-FEL. Kiskinova will report on the first coherent diffractive X-ray imaging results on non-periodic targets using this new laser facility. Also to be presented are new research opportunities in the time domain using X-ray pump and X-ray probe approaches based on two seed pulses acting on the same electron bunch to provide two FEL-pulses with controllable energy, bandwidth, time jitter and time delay. The talk will be streamed live.
Abbas Ourmazd from University of Wisconsin will present a Next Generation Light Source (NGLS) talk on Wednesday at noon in Building 15-253. He will discuss “Structure and Dynamics from Random Observations”. The talk will describe efforts to extract structural and dynamical information from large datasets of noisy, random snapshots. Examples include the structure and of weakly scattering biological objects, and “molecular movies” of ultrafast bond-breaking at unprecedented time resolution. The talk will be webcast live.
Wilfried Wurth of Universität Hamburg will present a Next Generation Light Sources (NGLS) talk on Wednesday at noon in Building 15-253. He will discuss “Ultrafast Dynamics Probed with Time-Resolved Soft X-ray Spectroscopy: Lessons from Experiments at FLASH.” The talk will review recent time-resolved soft x-ray spectroscopy experiments illustrating the opportunities and challenges using examples ranging from nuclear dynamics in molecules to charge ordering phenomena and electron dynamics at surfaces. Go here to view a live webstream of the talk.
The Next Generation Light Source is organizing a series of workshops in August intended to refine the science drivers for the facility to translate the science needs into technical performance requirements. Feedback from these workshops will be important input for advancing the design of the facility. The two-day workshops will be held Aug. 20-21, 23-24, 27-28 and 30-31. Topics include catalysis, nanoscale bioimaging, combustion dynamics, and quantum materials, among others. Registration will close August 10 at 5 p.m. More>
As part of the Next Generation Light Source (NGLS) seminar series, James Klett of Oakridge Lab will present at talk on “Graphitic Foams for Advanced Thermal Management” tomorrow at 9:30 a.m. in Building 15-253. A novel material, high thermal conductivity pitch-based graphite foam, has been developed and patented at Oakridge, which exhibits a thermal conductivity 30% higher than aluminum alloys at 1/4th their weight. Klett will discuss its unique properties, as well as many applications, including two NASA satellites currently orbiting the moon.
A series of workshops have been planned during August to refine the science drivers for the Next Generation Light Source (NGLS) and translate the science needs into technical performance requirements. Feedback from these workshops will help advance the design of the facility. The two-day workshops will be held Aug. 20-21, 23-24, 27-28, and 30-31. Topics include catalysis, nanoscale bioimaging, combustion dynamics, and quantum materials, among others. More>
The next [email protected] lecture will be presented by Vittal Yachandra of the Physical Biosciences Division on Friday, May 11, in Building 15-253. He will discuss “Taking Snapshots of Photosynthetic Water Oxidation.” Using ultrashort X-ray pulses from a free-electron laser, scientists hope to obtain a much better understanding of the sequential chemistry of light absorption and water-oxidation by probing the reaction in real time under operating conditions. The talk will be broadcast live and available for later viewing here.