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ALPHA Stores Antimatter Atoms Over a Quarter of an Hour – and Still Counting

By Guest PostJune 8, 2011Sciencealpha collaboration, anti atoms, antihydrogen atoms, antimatter atoms, atoms, atoms of antihydrogen, berkeley lab, CERN, geneva, joel fajans, jonathan wurtele, lasers, magnetic trap, matter antimatter asymmetry, properties of antihydrogen, switzerland, time to go for coffee

*Berkeley Lab physicists join with their international colleagues in reaching a new frontier in antimatter science*

The ALPHA Collaboration, an international team of scientists working at CERN in Geneva, Switzerland, has reported storing a total of 309 atoms of antihydrogen, some for up to 1,000 seconds (almost 17 minutes), with an indication of much longer storage time as well.

ALPHA announced in November, 2010, that they had succeeded in storing antimatter atoms for the first time ever, having captured 38 atoms of antihydrogen and storing each for a sixth of a second. In the weeks following, ALPHA continued to collect anti-atoms and hold them for longer and longer times. (more…)

Study Improves Understanding of Method for Creating Multi-Metal Nanoparticles

By Guest PostDecember 18, 2010Sciencealloy nanoparticles, atoms, chemical reactions, core, digestive ripening, electric field of light, environmental applications, gold, gold core, gold silver alloy, industrial, joe tracy, multi component metal nanoparticles, nanoparticles, optical properties, security technology, shell nanoparticles, silver, silver shell, single metal nanoparticles, synthesis, technique, tunable properties, two metals

A new study from researchers at North Carolina State University sheds light on how a technique that is commonly used for making single-metal nanoparticles can be extended to create nanoparticles consisting of two metals – and that have tunable properties. The study also provides insight into the optical properties of some of these nanoparticles.

Tuning the optical properties of nanoparticles is of interest for applications such as security technology, and for use in making chemical reactions more efficient – which has multiple industrial and environmental applications. (more…)

The Promise of Ion Beam Cancer Therapy

By Guest PostOctober 23, 20101 commentHealth, Scienceatoms, beams of ions, berkeley lab, bragg peak, cancer, carbon, cyclotron, ernest lawrence, gamma rays, heavy ion linear accelerator, heidelberg ion beam therapy center, hilac, hit, hydrogen ions, ion-beam therapy, john lawrence, neon, protons, robert wilson, therapy, x-rays

For certain kinds of cancer, the most effective therapy does not use x-rays or gamma rays but beams of ions, the electrically charged cores of atoms, including hydrogen ions (protons) and heavier ions such as carbon and neon.

About the image: Beams of heavy ions can target hard-to-reach tumors with great accuracy and with minimal damage to surrounding tissues. Heidelberg Ion-Beam Therapy Center. Image credit: Berkeley Lab (more…)

Tag Archives: atoms

ALPHA Stores Antimatter Atoms Over a Quarter of an Hour – and Still Counting

Study Improves Understanding of Method for Creating Multi-Metal Nanoparticles

The Promise of Ion Beam Cancer Therapy