Proposed Remedies
A few remedies have been proposed to deal with this, such as putting ridges in the accelerator tube, adding antechambers to the tube, coating the tube to reduce the yield of electrons from the surface, or creating an electric field to pull in stray electrons. At the PEP-II accelerator at SLAC, the vacuum pipe which contains the positron ring has a wire coiled around its entire length. Running a current through this wire creates a solenoidal magnetic field which tends to contain the electrons liberated from the beam pipe walls.
Read more about this topic: Electron-cloud Effect
Famous quotes containing the words proposed and/or remedies:
“It has been proposed that the town should adopt for its coat of arms a field verdant, with the Concord circling nine times round.”
—Henry David Thoreau (1817–1862)
“Fear, coercion, punishment, are the masculine remedies for moral weakness, but statistics show their failure for centuries. Why not change the system and try the education of the moral and intellectual faculties, cheerful surroundings, inspiring influences? Everything in our present system tends to lower the physical vitality, the self-respect, the moral tone, and to harden instead of reforming the criminal.”
—Elizabeth Cady Stanton (1815–1902)