منابع مشابه
Iditarod Sled Dog Race
OnMarch 3rd, sixty-six teams from around the world will line up in Anchorage, Alaska to kick off the 40th Annual Iditarod Sled Dog Race. Each team is powered by 16 ‘‘Alaskan sled dogs’’ and one human ‘‘musher,’’ who leads the pack across 1,100 miles of Alaskan wilderness to the Bering Sea town of Nome. The race takes only 8–10 days to complete, with the dogs running 100 miles a day at speeds be...
متن کاملRecent Progress on Sled
From the following description, it will be seen that SLED raises the accelerator peak energy by 40% if the present 2.7 1s RF pulse length is used. The energy increase ” is 80% if the pulse length is extended to 5 ps. TO do this, however, changes have to be made in the modulators and trigger system, and the maximum repetition rate has to be halved to maintain the present average power level. In ...
متن کاملSLED phenomenology: curvature vs. volume
We assess the question whether the SLED (Supersymmetric Large Extra Dimensions) model admits phenomenologically viable solutions with 4D maximal symmetry. We take into account a finite brane width and a scale invariance (SI) breaking dilaton-brane coupling, both of which should be included in a realistic setup. Provided that the brane tension and the microscopic size of the brane take generic v...
متن کاملLow Current, Long Beam Pulse with SLED
The 3 km long linac at the Stanford Linear Accelerator Center (SLAC) is used for fixed target experiments such as E-155, with energies up to 50 GeV. The SLAC Energy Development (SLED) system increase the maximum no-load energy by a factor of 1.6, but it also causes a varying beam energy curve. To provide a long pulse or bunch train for the experiment the energy profile has to be flat. Besides m...
متن کاملSled: a Method of Doubling Slac's Energy*
Over the past few years, several schemes for *. making significant increases in the energy of the SLAC beam have been proposed. Two of the proposals, namely the use of superconducting accelerating sections1 and recirculation 1 of the beam for a second pass through the existing acceler. &or,’ have been abandoned for technical and economic reasons after extensive investigation. An on-going method...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1910
ISSN: 0036-8733
DOI: 10.1038/scientificamerican11191910-403