Tensile Fracture Test of Metallic Wire of Beam Profile Monitors

Akihiko Miura, Shota Fukuoka, Kenta Futatsukawa, Yusuke Kawane, Tomoaki Miyao, Katsuhiro Moriya, Satogata, Todd (Ed.), Schaa, Volker RW (Ed.)
In order to mitigate the beam loss during a beam transportation in a high-brilliant accelerator facilities, wire-based profile monitors are used to measure by both transverse and longitudinal beam profiles using wire-scanner monitors (WSMs) and bunch-shape monitors (BSMs) for the tuning of quadrupole magnets and bunching cavities. Signals are come from the direct interaction between a metallic wire and beam. We have used the tungsten wire as a high melting-point material by estimation of heat
more » ... ading during the impact of beam particles. In addition, a spring is applied for the relaxing a sag under wire's own weight. A tensile fracture test is conducted by supplying an electrical current as a simulated beam-heat loading. As the results, we obtained the relation between the thermal limit to break down and tension loading of tungsten wire.
doi:10.18429/jacow-ipac2018-wepal016 fatcat:d7ti2blovzavld7od4ifygzf34