2 Matching Results

Search Results

Advanced search parameters have been applied.

in creator/contributor: "Nicholls, G."

open access

Status report on the radio frequency accelerating system of the APS (Advanced Photon Source) at Argonne

Argonne National Laboratory is designing a 7-GeV Advanced Photon Source (APS). The rf systems of the APS include 10-MHz and 120-MHz systems for the Positron Accumulator Ring (PAR), a multicell 352-MHz system for the booster synchrotron, and a system of mode-damped, single-cell 352-MHz cavities for the storage ring. The paper will describe the design of the PAR cavities, the configuration of the booster system, test results of the junction circulator developed for the cavities, and results of th… more

Date: January 1, 1989

Creator: Nicholls, G.; Bridges, J.; Cook, J. & Kustom, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Analysis of rf modes in the ANL APS vacuum chamber using computer simulation, electron beam excitation, and perturbation techniques

The APS vacuum consists of a nearly elliptical beam chamber coupled to an antechamber through a 1-cm-high, 10-cm-long pumping slot over most of the 1104 m of storage ring circumference. Nonevaporable getter (NeG) strips in the antechamber are the pumping element. The 1-cm-high slot has two functions: to provide good conductance for vacuum pumping and for transmission of the photons into the beam ports. We thought that coupling of the beam to the antechamber might occur through the slot. Since t… more

Date: January 1, 1989

Creator: Kustom, R.; Bridges, J.; Chou, W.; Cook, J.; Mavrogenes, G. & Nicholls, G.