Summary: Researchers at the National Synchrotron Light Source II will use the quantum properties of x-rays to “ghost image” biomolecules
Original author and publication date: Brookhaven National Laboratory – November 23, 2020
Futurizonte Editor’s Note: We are beginning to explore the quantum realm at a level previously unthinkable. What could we find there? According to this article, magic.
From the article:
Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have begun building a quantum-enhanced x-ray microscope at the National Synchrotron Light Source II (NSLS-II). This groundbreaking microscope, supported by the Biological and Environmental Research progam at DOE’s Office of Science, will enable researchers to image biomolecules like never before.
NSLS-II is a DOE Office of Science User Facility where researchers use powerful x-rays to “see” the structural, chemical, and electronic makeup of materials down to the atomic scale. The facility’s ultrabright light already enables discoveries in biology, helping researchers uncover the structures of proteins to inform drug design for a variety of diseases—to name just one example.
Now, by tapping into the quantum properties of x-rays, researchers at NSLS-II will be able to image more sensitive biomolecules without sacrificing resolution. While the high penetration power of x-rays enables superior resolution for imaging studies, this powerful light can also damage certain biological samples, such as plant cells, viruses, and bacteria. Low-dose x-ray studies can preserve these samples, but the imaging resolution is reduced.
“If we are successful in building a quantum-enhanced x-ray microscope, we will be able to image biomolecules with very high resolution and a very low dose of x-rays,” said Sean McSweeney, manager of the structural biology program at NSLS-II.
The quantum-enhanced x-ray microscope at NSLS-II will achieve this remarkable combination of capabilities through an experimental technique called ghost imaging. Compared to typical x-ray imaging techniques, which send a single beam of photons (particles of light) through a sample and onto a detector, ghost imaging requires the x-ray beam be split into two streams of entangled photons—only one of which passes through the sample, but both gather information.
“One stream goes through the sample and is collected by a detector that records the photons with good time resolution, while the other stream of photons encodes the exact direction in which the photons propagate,” said Andrei Fluerasu, lead beamline scientist at NSLS-II’s Coherent Hard X-ray Scattering (CHX) beamline, where the microscope will be developed.
“It sounds like magic. But with mathematical calculations, we’ll be able to correlate the information from the two beams.”