(Photo - Module One leaves the building)

The first module leaving Stanford yesterday morning. (Click on image to see a photo gallery of the move.)

EXO on the Road

by Kelen Tuttle

On a small side street on Stanford's main campus, just across from a bustling construction site, a transport company loaded four shipping containers onto trucks yesterday. The activity may well have blended into the background for a casual observer, but for Giorgio Gratta and a handful of others, it marked a milestone in the search for knowledge about neutrinos.

"Today, we completed an integral step in the complex process that will take the prototype Enriched Xenon Observatory [EXO] to the bottom of a mine shaft in New Mexico," said Gratta, the EXO project leader. "But we're not done yet; there are still two other truck journeys, a mine shaft, and shifting salt to think about." Read more...

Congratulations to the 2007 Environmental Stewardship Champions

Photo courtesy of Diana Rogers.
(Click on image for larger version.)

Yesterday afternoon, SLAC presented the 2007 Environmental Stewardship Champion certificates to employees who have made noteworthy efforts in pollution prevention and environmental stewardship. Congratulations to these employees!

symmetry:
Tesla in Paradise

by Glennda Chui

(Photo - Tesla coil)
Photo courtesy of Jason Chen, Gizmodo.com

Even in the company of a two-story nose-picking machine, human cupcakes, battling robots, and power-tool drag races, the giant Tesla coil stands out.

Maybe it's the loud buzz and crackle of artificial lightning bolts, writhing like fiery serpents from the top of the thing.

Maybe it's the hint of danger: More than one million volts! Stay back behind the ropes, and turn off your cell phone!

Paulina Shearer and her brother, Andrew, watched wide-eyed, hands over their ears, as a volunteer, safely enclosed in a clunky metal suit, came forward to do battle with the flashing electrical arcs (Look folks, he's safe! Give him a hand!).

"It was cool," six-year-old Paulina said, "but kind of freaky."
Read more...

Crab Cavities Operated Successfully for 1st Time

from KEK Press Release

A CAD drawing of a crab cavity. (Image courtesy of KEK.)

A team of accelerator physicists at the High Energy Accelerator Research Organization (KEK) in Tsukuba, Japan, has achieved effective head-on collisions of electrons and positrons using new devices called "crab cavities" during the spring operation period of the KEKB accelerator. This success will pave the way to increase KEKB's luminosity, which is already the world highest, to an unprecedented level.

At KEKB, beams of electrons and positrons collide at nearly the speed of light and annihilate into a state of pure energy. These collisions produce pairs of particles called B mesons and anti-B mesons. These mesons have several thousand decay modes; therefore, it is essential for the experiment to have as many pairs as possible. The rate of collisions, called luminosity, is the most critical parameter for the successful operation of KEKB.

The electron and positron beam bunches cross at an angle of 1.3 degrees at KEKB. This non-zero crossing angle is one of the novel design features of KEKB, providing effective beam separation at the collision point without a high level of background noise in the detector. To boost the luminosity further, it is necessary to tilt the bunches of electrons and positrons for effective head-on collisions while retaining the crossing angle. Read more...

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View online at http://today.slac.stanford.edu/.

The first module leaving Stanford yesterday morning. (Click on image to see a photo gallery of the move.) EXO on the Road by Kelen Tuttle On a small side street on Stanford's main campus, just across from a bustling construction site, a transport company loaded four shipping containers onto trucks yesterday. The activity may well have blended into the background for a casual observer, but for Giorgio Gratta and a handful of others, it marked a milestone in the search for knowledge about neutrinos. "Today, we completed an integral step in the complex process that will take the prototype Enriched Xenon Observatory [EXO] to the bottom of a mine shaft in New Mexico," said Gratta, the EXO project leader. "But we're not done yet; there are still two other truck journeys, a mine shaft, and shifting salt to think about." Read more...

Congratulations to the 2007 Environmental Stewardship Champions Photo courtesy of Diana Rogers. (Click on image for larger version.) Yesterday afternoon, SLAC presented the 2007 Environmental Stewardship Champion certificates to employees who have made noteworthy efforts in pollution prevention and environmental stewardship. Congratulations to these employees! symmetry: Tesla in Paradise by Glennda Chui Photo courtesy of Jason Chen, Gizmodo.com Even in the company of a two-story nose-picking machine, human cupcakes, battling robots, and power-tool drag races, the giant Tesla coil stands out. Maybe it's the loud buzz and crackle of artificial lightning bolts, writhing like fiery serpents from the top of the thing. Maybe it's the hint of danger: More than one million volts! Stay back behind the ropes, and turn off your cell phone! Paulina Shearer and her brother, Andrew, watched wide-eyed, hands over their ears, as a volunteer, safely enclosed in a clunky metal suit, came forward to do battle with the flashing electrical arcs (Look folks, he's safe! Give him a hand!). "It was cool," six-year-old Paulina said, "but kind of freaky." Read more...	Crab Cavities Operated Successfully for 1st Time from KEK Press Release A CAD drawing of a crab cavity. (Image courtesy of KEK.) A team of accelerator physicists at the High Energy Accelerator Research Organization (KEK) in Tsukuba, Japan, has achieved effective head-on collisions of electrons and positrons using new devices called "crab cavities" during the spring operation period of the KEKB accelerator. This success will pave the way to increase KEKB's luminosity, which is already the world highest, to an unprecedented level. At KEKB, beams of electrons and positrons collide at nearly the speed of light and annihilate into a state of pure energy. These collisions produce pairs of particles called B mesons and anti-B mesons. These mesons have several thousand decay modes; therefore, it is essential for the experiment to have as many pairs as possible. The rate of collisions, called luminosity, is the most critical parameter for the successful operation of KEKB. The electron and positron beam bunches cross at an angle of 1.3 degrees at KEKB. This non-zero crossing angle is one of the novel design features of KEKB, providing effective beam separation at the collision point without a high level of background noise in the detector. To boost the luminosity further, it is necessary to tilt the bunches of electrons and positrons for effective head-on collisions while retaining the crossing angle. Read more...	Events (see all \| submit) July 6: (4:00 p.m.) Accelerator Seminar: New Formulation of the Equation for Synchrotron Oscillations Access (see all) Construction on Sand Hill Road and at SLAC Main Gate Blackbox/concrete pad construction near Building 50 Alpine Gate & PEP Ring Road closed Gates 17 & 30 open 24-7 Research Yard bisected Announcements (see all \| submit) Lab Announcements Summer Wellness classes and STAP information 2007 Winter Closure Memo News (see all \| submit) A Comedown for Cosmic Rays Science Now Magic Cluster Rules for Hydrogen Storage Physics Web ATLAS Upgrade Allows Scientists To Reach Even Further For The Stars Science Daily
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<% Response.AddHeader "Last-modified", getArticleDate() 'Response.AddHeader "Last-modified","Mon, 01 Sep 1997 01:03:33 GMT" 'Monday, December 06, 2010 %> View online at http://today.slac.stanford.edu/.