العلوم والبيئة
Laser-plasma accelerator could generate bright X-rays for biological imaging, simulations show
المصدر: Phys.org - latest science and technology news stories · نُشر
X-rays with wavelengths between approximately 2.3 and 4.4 nanometers, i.e., in the so-called water window, are particularly well suited to examining biological samples in their natural, aqueous environment. To date, however, it has been technically difficult to access this type o
X-rays with wavelengths between approximately 2.3 and 4.4 nanometers, i.e., in the so-called water window, are particularly well suited to examining biological samples in their natural, aqueous environment. To date, however, it has been technically difficult to access this type of radiation at an appropriate quality and intensity, as only free-electron lasers in large-scale accelerator systems are capable of generating it.
أخبار ذات صلة
Pinning down the structure of quark-gluon plasma, the universe's first fluid
In the first fraction of a second following the Big Bang, matter existed as a trillion-degree plasma of quarks and gluons—subatomic particles that zinged around at close to the speed of light. This roiling soup lasted for just a few microseconds before the particles coalesced int
Phys.org - latest science and technology news stories ·
Chemicals in sewage-based fertilizer may persist in farmland soil for years
UNSW engineers have identified a number of chemicals that may merit closer scrutiny to ensure water utility companies and regulators can make informed decisions about the management of biosolids.
Phys.org - latest science and technology news stories ·
Astronomers deliver the sharpest and deepest view yet of the low-frequency radio sky
Using the Low Frequency Array (LOFAR), an international team led by Leiden University has produced the sharpest and most sensitive radio image of the sky ever made at low radio frequencies. The image reveals almost 63,000 radio sources, such as active galactic nuclei and star-for
Phys.org - latest science and technology news stories ·
Children may be missing out on free school meals as families favor private education, study finds
Children in some of India's poorest families may be missing out on free school meals because the scheme does not match parents' aspirations for their futures, new research has revealed.
Phys.org - latest science and technology news stories ·
Twisted atomic layers slide spontaneously at room temperature in simulations
Researchers revealed an ultralow-barrier collective sliding mechanism mediated by domain walls, as well as defect-induced pinning of the sliding motion. They found that twisted bilayer MoS₂ moiré superlattices can undergo spontaneous long-range interlayer sliding at room temperat
Phys.org - latest science and technology news stories ·