منابع مشابه
Linear Accelerator Center , Stanford University , Stanford , CA , 94309
At the present time, there are a number of future linear collider designs with a center-of-mass energy of 500 GeV or more that have luminosities in excess of 10 cm 2 s . Many of these designs are very advanced, however, to attain the high luminosity, the colliders require very small beam emittances, strong focusing, and very good stability. In this paper, some of the outstanding issues related ...
متن کاملLIONs at the Stanford Linear Accelerator Center
The term LION is an acronym for Long Ionization Chamber. This is a distributed ion chamber which is used to monitor secondary ionization along the shield walls of a beam line resulting from incorrectly steered charged particle beams in lieu of the use of many discrete ion chambers. A cone of ionizing radiation emanating from a point source as a result of incorrect steering intercepts a portion ...
متن کاملVibration Studies of the Stanford Linear Accelerator†
Vibration measurements of the linear accelerator structures in the SLC linac show a 1 micron rms vertical motion. This motion reduces to 0.2 micron rms motion when the cooling water to the accelerator structures is turned off. The quadrupoles have 250 nanometer rms vertical motion with the accelerator structure cooling water on and 60 nanometer motion with it off. These results together with me...
متن کاملStanford-UBC Entity Linking at TAC-KBP, Again
This paper describes the joint Stanford-UBC knowledge base population system for the entity linking tasks. We participated in both the English and the cross-lingual tasks, using a dictionary from strings to possible Wikipedia titles, taken from our 2009 submission. This dictionary is based on frequencies of Wikipedia back-links, and it provides a strong context-independent baseline. For the Eng...
متن کاملEuropean Organization for Nuclear Research Stanford Linear Accelerator Center
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH, DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLD experiment using a polarised beam at SLC. The measurements include cross-sections, f...
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ژورنال
عنوان ژورنال: Science
سال: 1961
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.133.3466.1737