SLAC Today is available online at:
http://today.slac.stanford.edu

In this issue:
SSRL Launches 2010 User Run
PeopleSoft Financials Update Goes Live: New URL for User Access Starting Today
Colloquium Today: Fermi Large Area Telescope's Greatest Hits (So Far)

SLAC Today

Monday - October 26, 2009

SSRL Launches 2010 User Run

Jason Holt of Lawrence Livermore National Laboratory checks detector alignment at SSRL during the 2007 user run.

Users are back at the Stanford Synchrotron Radiation Lightsource today following the annual three-month shutdown period. During the break, many updates were made to the SPEAR3 storage ring and beamline equipment, allowing the SSRL team to increase the operating current above the former baseline of 100 milliamperes, with the aim to test operations at the top design current of 500 milliamps.

"The next run is all about increasing the current while maintaining beam stability and user data quality," said SSRL's Tom Rabedeau, who works in beamline development.

The increased current will make SSRL's X-ray beamlines even brighter, allowing researchers to put more photons on each sample in a given amount of time. Increasing the number of photons can provide clearer experimental results, because the increased signal can be more easily distinguished from background noise. The enhanced signal also reduces the length of time needed for data collection, allowing for more samples to be examined in a given period of time.  Read more...

PeopleSoft Financials Update Goes Live

New URL for User Access Starting Today

(Image - PeopleSoft login screen)

Thanks to a collaborative effort between the offices of the Chief Finance Officer and Chief Information Officer, spanning the past six months, PeopleSoft Financials software is now running on new hardware that will provide better reliability and improved performance. Additionally, the new PeopleSoft Financials infrastructure provides redundancy to keep the system running should an unexpected hardware failure occur. The new infrastructure is the foundation for future application enhancements to PeopleSoft Financials.

Here are the steps you need to follow to properly access the new PeopleSoft Financials system:

  • First, adjust your Web browser by removing cookies and deleting any cached files. For Internet Explorer 6.0 users, navigate to the Internet Options section (under the "Tools" menu) and use the option to delete cookies and remove files. Internet Explorer 7.0 users should simply navigate to Internet Options and select "delete all."
  • The second step is to navigate to the new PeopleSoft URL.
  • Finally, remove all old browser bookmarks you might have used to access PeopleSoft Financials.

Any questions, please log a Request Tracker ticket for the PeopleSoft team.

Colloquium Today: Fermi Large Area Telescope's Greatest Hits (So Far)

(Image - SLAC Colloquium banner)

After one year since its launch in June 2008, the Fermi Gamma-ray Space Telescope mission has recorded a remarkable variety of novel observations, relating to astronomy to particle astrophysics with exciting implications for fundamental physics. The most energetic and mysterious objects in the cosmos, such as black holes, rapidly-spinning neutron stars, supernova remnants, gamma-ray bursts as well as the interstellar glow of our own galaxy, have been observed in gamma-rays from 20 MeV to more than 300 GeV by the Large Area Telescope. The LAT was integrated at SLAC and SLAC is the center for LAT science operations, including data processing.

In this talk, astrophysicist Nicola Omodei will review some of the most interesting results obtained by the Fermi LAT, highlighting the contribution of the mission to gamma-ray astrophysics. Omodei, a researcher at the Italian physics lab INFN in Pisa, is visiting SLAC this year as the Fermi LAT analysis coordinator.

Omodei's talk will begin at 4:15 p.m. today in Panofsky Auditorium. The colloquium is free and open to all.

Next Monday, the SLAC colloquium series will take a break for the BaBar Collaboration meeting at SLAC. The series will resume on Monday, November 9, with a talk on cloud computing by pioneering Stanford University computer scientist William Dally, in Kavli Auditorium.

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