BEAM DETECTOR ASSEMBLY FOR THE FERMILAB ENERGY DOUBLER

The testing and production of the Fermilab Energy Doubler has necessitated the development of a detection device to locate a proton beam with an accuracy and repeatability of ±.5 mm relative to the centerline of a 2-7/8” bore tube. This information is essential for focusing and “steering” of the beam around a four mile synchrotron. The detectors are positioned, to measure horizontal and vertical offaxis displacement, alternately at each quadrupole magnet. The severity of the operating environment, as well as stringent electrical parameters, have necessitated the development of a number of design innovations. Both the mechanical and electrical considerations will be discussed as they relate to operational criteria. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.