INTERFERENCE DIAGNOSTICS FOR STORAGE-RING ELECTRON-BEAM

A beam of charged particles (e.g., electrons) in a uniform magnetic fi eld of bending magnets emits synchrotron radiation (SR). The spectral density distribution of this radiation in the horizontal direction (i. e., in the electron orbit plane) is homogeneous. It is quite clear tha t the homogeneity of this distribution determines the accuracy of the measurements of the beam parameters (beam horizontal size and particle angular distribution) considerably. This work is dedicated to the pos sibility of a considerable increase in the accuracy of storage-ring el ectron beam parameter measurements using SR and some standard optical devices. For simplicity we will consider thereafter the SR in the opti cal spectral region. This is due to a wide range of precise optical to ols and well-developed techniques at the disposal of experimenters ove r this spectral range.