Free Newsletter
Register for our Free Newsletters
Advanced Composites
Amorphous Metal Structures
Analysis and Simulation
Asbestos and Substitutes
Associations, Research Organisations and Universities
Automation Equipment
Building Materials
Bulk Handling and Storage
CFCs and Substitutes
View All
Other Carouselweb publications
Carousel Web
Defense File
New Materials
Pro Health Zone
Pro Manufacturing Zone
Pro Security Zone
Web Lec
Pro Engineering Zone

Pegasus II primed for parting shot

DOE/Los Alamos National Laboratory : 17 September, 2001  (Technical Article)
Scientists at the Department of Energy's Los Alamos National Laboratory are preparing to pull the plug on the powerful Pegasus II pulsed-power capacitor bank, but not before they get one final shot from their trusted war horse.
Pegasus II will be shut down shortly after a final experimental run on September 23 as the High Energy Density Hydrodynamics program prepares for the new Atlas pulsed-power machine. This final experiment will be shot number 129 in Pegasus' five years of service.

Scientists use Pegasus II to study how high pressure and sudden changes in magnetic fields affect materials placed in the core of the device. In about 10 millionths of a second, Pegasus II discharges massive amounts of electrical energy from capacitor banks onto a target placed at the core. The sudden influx of energy produces a million atmospheres of pressure capable of crushing target materials and launching extremely energetic shock waves. 'Pegasus II has had a fine run with many notable successes in pulsed-power high-energy physics,' said Jack Shlachter, leader of the Pegasus II project. 'Everyone's looking forward to Atlas, but it's hard to forget that Pegasus II has done some really good work.'

Since it became operational Pegasus II has been running experiments roughly every two to three weeks. During its lifetime, Pegasus II has been host to visiting researchers from all over the world representing a dozen research institutions and universities.

Pegasus II has 144 energy-storage capacitors arranged around the two-story Pegasus machine. The capacitors can charge to voltages up to 100 kilovolts and the 4.3 mega joules of stored energy at this voltage makes Pegasus II one of the largest capacitor-bank facilities in the world. Pegasus II produces peak currents as high as 12 mega amps, or roughly a million times what a typical microwave oven uses.

The Atlas device will be similar in both purpose and function to Pegasus II, but will have a larger chamber at its core and will be capable of energy levels six times that of Pegasus II. Atlas' capacitor bank will be capable of storing 24 mega joules and should deliver a peak current of 28 to 32 mega amps.
Bookmark and Share
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
   © 2012
Netgains Logo