Category: X-ray imaging and spectroscopy

Bergmann Group achieves shortest hard X-ray pulses to date

Once only a part of science fiction, lasers are now everyday objects used in research, healthcare and even just for fun. Previously available only in low-energy light, lasers are now available in wavelengths from microwaves through X-rays, opening up a range of different downstream applications. In a new study published online June 11 in the …

Pupa Gilbert earns WARF Named Professorship

Physics professor Pupa Gilbert is one of eight UW–Madison faculty awarded WARF Named Professorships, which come with $100,000 and honor faculty who have made major contributions to the advancement of knowledge, primarily through their research endeavors, but also as a result of their teaching and service activities. Award recipients choose the names associated with their …

Zain Abhari selected for SACLA graduate internship

Congrats to Physics PhD student Zain Abhari for being selected to the SACLA Research Support Program for Graduate Students. The one-year internship run by SACLA (the SPring-8 Angstrom Compact free electron LAser) accepts graduate students with a demonstrated interest in using X-ray free electron lasers (XFELs) for their research and provides them with training and …

Physics researchers named part of $18M NSF materials research center

The Department of Physics is part of a six-year, $18 million grant awarded to the University of Wisconsin–Madison’s Materials Research Science and Engineering Center (MRSEC) by the National Science Foundation. The award creates a National User Facility for X-FAST (XUV Femtosecond Absorption Spectroscopy Tabletop), a powerful XUV laser developed in the department. MRSEC brings together 30 affiliated …

Researchers capture elusive missing step in the final act of photosynthesis

This story was modified from one originally published by SLAC Photosynthesis plays a crucial role in shaping and sustaining life on Earth, yet many aspects of the process remain a mystery. One such mystery is how Photosystem II, a protein complex in plants, algae and cyanobacteria, harvests energy from sunlight and uses it to split …

X(ray) marks the spot in elemental analysis of 15th century printing press methods

This story was originally published by University Communications In 15th century Germany, Johannes Gutenberg developed a printing press, a machine that allowed for mass production of texts. It is considered by many to be one of the most significant technological advancements of the last millennium. Though Gutenberg often receives credit as the inventor of the …

Researchers aim X-rays at century-old plant secretions for insight into Aboriginal Australian cultural heritage

This story was originally published by David Krause at SLAC For tens of thousands of years, Aboriginal Australians have created some of the world’s most striking artworks. Today their work continues long lines of ancestral traditions, stories of the past and connections to current cultural landscapes, which is why researchers are keen on better understanding …

Fringe benefits: new technique makes x-rays more laser-like

Detecting a chemical change is often easy: colors may change, heat may be released, or something may smell different. Seeing reactions at the molecular level is not quite so easy, but knowing exactly when and how chemical bonds form or atoms move around is crucial to understanding chemical processes. In a new study published March …

Bucket brigades and proton gates: Researchers shed new light on water’s role in photosynthesis

This story is adapted from one originally published by SLAC by Ali Sundermier Photosystem II is a protein in plants, algae and cyanobacteria that uses sunlight to break water down into its atomic components, unlocking hydrogen and oxygen. A longstanding question about this process is how water molecules are funneled into the center of Photosystem II, …