Depolarisation in large electron storage rings

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Resonant Spin Depolarisation Measurements at the Spear3 Electron Storage Ring

Accurate electron beam energy measurements are valuable for precision lattice modelling of high-brightness light sources. At SPEAR3 the beam energy was measured using the resonant spin depolarisation method with striplines to resonantly excite the spin tune and a sensitive NaI scintillator beam loss monitor to detect resulting changes in Touschek lifetime. Using the combined apparatus an electr...

متن کامل

Beam-cavity Interaction in Electron Storage Rings

A formal expression is obtained for the energy loss per . . _ turn, of a rigid bunch of electrons, to a closed cy lindrical cavity with quality factor Q. -The expression is valid provided the diameter of the entrance and exit ports for the beam are small ._.. .'compared to the bunch length. The effect of the ports is studied in an independent computational method. The energy loss is numerically...

متن کامل

Spin Decoherence in Electron Storage Rings

A simple model of spin decoherence in electron storage rings is presented and its relevance to rf spin ipping at high energy is discussed.

متن کامل

Trapped Macroparticles in Electron Storage Rings

Sudden drops of the beam lifetime ascribed to the capture of positively charged macroparticles (‘dust’) are observed at many high-energy electron storage rings. A trapped macroparticle has a certain thermal lifetime due to energy transfer from the beam; the interplay of different ionizing and discharging processes gives rise to an equilibrium charge. The beam lifetime is reduced by bremsstrahlu...

متن کامل

Injection Issues of Electron-Positron Storage Rings*

The general issues of injection into e+ecolliders are discussed using results from several storage rings. Obse&tions from these colliders indicate that the starting conditions and duration of each fill are often different. Consequently, it is shown that the optimum storage time is expected to be about twice as long as that expected from simple-uniform filling cycles. Injection parameters for se...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nuclear Instruments and Methods

سال: 1976

ISSN: 0029-554X

DOI: 10.1016/0029-554x(76)90462-6