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Accelerator drift-tube braze-joint failures in the PIGMI APF cavity
[report]
1981
unpublished
During tne assembly of the Alternating Phase Focusing cavity for the PIGMI Prototype proton accelerator, recurring failures of drift-tube braze joints occurred. In the fabrication technique, a torch craze was used to attach the stems to both the drift-tube body and the stem termination; all materials used were stainless steel. The assemblies were copper plated, using brignt-acid-leveling copper plating. Some braze joints, althouqh satisfactorily tension-tested before plating, later failed at a
doi:10.2172/6682549
fatcat:ku6hik6n5bblfl7xcpqghm2rae