SLAC Today is
available online at:
http://today.slac.stanford.edu
In this issue:
SLAC Researchers Respond to Loss of Hubble Camera
Profile: Honest, Abe's a Renaissance Man
Acid Leak Quickly Contained
Science Bowl Training Today
SLAC Welcomes New Employees
Wednesday - February 7, 2007 |
SLAC Researchers Respond to Loss of Hubble CameraThe Hubble Space Telescope is responsible for some of the most breathtaking astronomical images ever taken. Perhaps the most famous is the Hubble Ultra Deep Field, a snapshot of primordial galaxies at the dawn of the universe. But the camera that took those pictures, the Advanced Camera for Surveys (ACS), has now been rendered useless by a short-circuit, causing major problems for astronomers who depend on the ACS for their research. "It's a big loss for the astronomical community," said Marusa Bradac, an astrophysicist at the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC). "Everything I've done in the last two to three years has been done with that camera, including the Bullet cluster images." The electrical problems struck on Saturday, January 27, coming at an unfortunate time for researchers. Proposals to use the ACS were due the Friday just before the camera shut down. Astronomers like Bradac are now scrambling to rewrite their proposals, adapting them to a secondary camera, the Wide-Field Planetary Camera 2 (WFPC2). Read more... |
||
Honest, Abe's a
|
Acid Leak Quickly ContainedEarly yesterday morning, a small leak occurred in the cooling tower water system east of SLAC's Main Control Center. Approximately 5 to 10 gallons of water containing dilute sulfuric acid, used to control the water pH and prevent algae from building up in the system, were released onto the ground when the tower's containment system failed. The spilled water had an acidity value approximately the same as lime juice. There were no injuries, exposure, property damage or off site contamination. The spill was discovered by a SLAC technician during a routine daily inspection of the cooling tower. A Palo Alto Fire Department Hazardous Incident Team initially responded to the leak and immediately contained the spill. The area has remained sealed off until an outside contractor finishes the job of completely cleaning the spill and vicinity. Workers are also in the process of evaluating and repairing the cause of the leak. There are seven cooling towers on site used to cool water that is constantly circulating to absorb heat created by the accelerators. That water is treated by chemicals, including the acid, to prevent contamination using industry standard processes. Last Chance to Volunteer
|
Events (see all | submit)
Access (see all)
Announcements
|
| ||
<%
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/. |