منابع مشابه
Supersymmetry and Gravitational Quadrupoles
We derive model independent, non-perturbative supersymmetric sum rules for the gravitational quadrupole moments of arbitrary-spin particles in any N = 1 supersymmetric theory. These sum rules select a “preferred” value of h = 1 where the “h-factor” is the gravitational quadrupole analog of the gyromagnetic ratio or g-factor. This value of h = 1 corresponds identically to the preferred field the...
متن کاملElectromagnetic design of superconducting quadrupoles
We study how the critical gradient depends on the coil lay-out in a superconducting quadrupole for particle accelerators. We show that the results relative to a simple sector coil are well representative of the coil lay-outs that have been used to build several quadrupoles in the past 30 years. Using a semi-analytical approach we derive a formula that gives that critical gradient as a function ...
متن کاملLinear quadrupoles in mass spectrometry.
The use of linear quadrupoles in mass spectrometry as mass filters and ion guides is reviewed. Following a tutorial review of the principles of mass filter operation, methods of mass analysis are reviewed. Discussed are extensions of quadrupole mass filters to higher masses, scanning with frequency sweeps of the quadrupole waveform, operation in higher stability regions, and operation with rect...
متن کاملInteraction Region with Slim Quadrupoles
An optical performance’s improvement of the interaction region can be obtained with the addition of new quadrupoles in the forward detectors area. Such scenario would allow decreasing the β∗ below the nominal value. The basic concept consists in using quadrupoles to break the quadratic behavior of β in the free space between the IP and the IR triplets. In this new configuration we present the p...
متن کاملIsabelle Côté
Isabelle Côté is Professor of Tropical Marine Ecology in the Department of Biological Sciences at Simon Fraser University, in Vancouver, Canada. She pioneered the use of meta-analysis to reconstruct ecological changes on coral reefs and measure the effectiveness of marine protected areas at enhancing fish and their habitats. She is actively involved in marine protected area issues in Canada. Sh...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1979
ISSN: 0018-9499
DOI: 10.1109/tns.1979.4330689