Positron injection linac system for the Argonne Light Source
TL;DRAbstract
The Argonne 6 GeV Light Source will use positrons rather than electrons in order to avoid ion trapping of the residual gas. One of the primary requirements of the linac system is the capability to deliver relatively intense short bunches of positrons in the stationary buckets of the booster synchrotron without utilizing a positron accumulator ring. A linac system for accomplishing this task is described. It consists of a 200-MeV, high-current, electron linac and a 450-MeV positron linear accelerator with a DESY-type converter in between. The first accelerating section of the electron linac is a high field standing wave structure. The rest of the accelerating sections for both the electron and positron linacs are conventional disk-loaded TW guides using the SLAC-SLED pulse compression scheme.
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The Argonne 6 GeV Light Source will use positrons rather than electrons in order to avoid ion trapping of the residual gas. One of the primary requirements of the linac system is the capability to deliver relatively intense short bunches of positrons in the stationary buckets of the booster synchrotron without utilizing a positron accumulator ring. A linac system for accomplishing this task is described. It consists of a 200-MeV, high-current, electron linac and a 450-MeV positron linear accelerator with a DESY-type converter in between. The first accelerating section of the electron linac is a high field standing wave structure. The rest of the accelerating sections for both the electron and positron linacs are conventional disk-loaded TW guides using the SLAC-SLED pulse compression scheme.
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