SLAC Today is
available online at:
http://today.slac.stanford.edu
In this issue:
Electrons in Hot Water
Pief Honored in Germany
symmetry: SLAC's Water Cycle
Friday - July 14, 2006 |
Electrons in Hot WaterSLAC's two-mile linear accelerator, with all its klystrons and vacuum chambers, is ultimately committed to one thingproducing beams of high-energy electrons and positrons. But once the scientific usefulness of those beams is exhausted, after the pulses of electrons have collided with positrons or zapped into a research instrument, what do you do with all the left-over energy? The best, time-tested solution, it turns out, is to make hot water. Back in the early 1960s, before researchers could switch on SLAC's linear accelerator (linac) for the first time, physicists and engineers had to figure out what to do with the beam at the end of its two-mile ride. The old way of stopping a beam involved using a dense barrier like a lead brick or a copper plate to absorb the flow of electrons, but that was simply not enough to dissipate the millions of watts contained in the new beam. Read more... |
||
Pief Honored in GermanySLAC's Pief Panofsky took part in two ceremonies last week at the University of Hamburg, Germanyone of which was held in the lecture hall named after his father. The university is starting a new Center for Science and Peace Research. Its opening ceremonies last Friday included a colloquium on arms control, at which Pief was invited to speak. His talk, titled "Between Physics and PoliticsObservations and Experiences of an Involved Physicist," focused on the knowledge he has gained in working separately on nuclear and high energy physics research and on political negotiations. At a second ceremony, Pief was made an honorary senator of the university. "I'm touched by them doing it," he says, describing the gesture as having great value to him. He was awarded the honor in Erwin Panofsky Lecture Hall, named for his father, a professor of art history who taught at the university from 1919 until 1934 when the Nazis forced the Panofsky family to leave Germany. Before the family left in 1934, the Hamburg Philharmonic wind section performed a Mozart piece as a farewell gift for Erwin Panofsky. In honor of his father, Pief chose a number of Mozart compositions performed by flute, oboe and English horn as the musical accompaniment to his award ceremony. |
symmetry:
|
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/. |