Latest Gyrotron Stories

2012-03-29 02:31:56

A team of physicists at UC Santa Barbara has seen the light, and it comes in many different colors. By aiming high- and low-frequency laser beams at a semiconductor, the researchers caused electrons to be ripped from their cores, accelerated, and then smashed back into the cores they left behind. This recollision produced multiple frequencies of light simultaneously. "This is a very remarkable phenomenon. I have never seen anything like this before," said Mark Sherwin, whose research group...

2010-11-22 07:58:00

System Would Safely Detect Ionization of Air Surrounding Containers Holding Radioactive Material COLLEGE PARK, Md., Nov. 22, 2010 /PRNewswire-USNewswire/ -- The shipment of cargo containers is a critical component of international trade and plays a fundamental role in the global economy. According to the U.S. Bureau of Customs and Border Protection, about 90 percent of the world's trade is transported in cargo containers, with almost half of incoming U.S. trade arriving by containers...

2010-11-09 20:43:05

University of Maryland researchers propose method to sniff out dirty bombs via the electromagnetic breakdown of air Researchers at the University of Maryland have proposed a scheme for detecting a concealed source of radioactive material without searching containers one by one. Detection of radioactive material concealed in shipping containers is important in the early prevention of "dirty" bomb construction. The concept, described in the Journal of Applied Physics, is based on the gamma-ray...

2009-05-06 14:23:00

PALO ALTO, Calif., May 6 /PRNewswire-FirstCall/ -- Communications & Power Industries, Inc. (CPI) is a member of the research and development team selected as a subcontractor by Science Applications International Corporation (SAIC) to support the Defense Advanced Research Projects Agency (DARPA) multi-phase program to develop vacuum electron devices capable of operating at frequencies of up to one terahertz. DARPA has awarded a prime contract to SAIC potentially worth up to $11 million...

Word of the Day
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'