Performance Studies of a Single Vertical Beam Halo Collimation System at ATF2

Nuria Fuster-Martínez , Philip Bambade (1) , Angeles Faus-Golfe (1) , Kiyoshi Kubo , Toshiyuki Okugi , Ivan Podadera , Toshiaki Tauchi , Nobuhiro Terunuma , Fernando Toral , Sandry Wallon (1) , Renjun Yang (1)

1 LAL - Laboratoire de l'Accélérateur Linéaire

In order to reduce the background that could limit the precision of the diagnostics located in the ATF2 post-IP beamline, a single vertical beam halo collimation system was installed in March 2016. In this paper we present the measurements done in March and May 2016 in order to characterize the collimation system performance. Furthermore, the collimator wakefield impact has also been measured and compared with theoretical calculations and numerical simulations in order to determine the most efficient operation mode of the collimation system in terms of halo cleaning and negligible wakefield impact.

Mots clés: background; collimation; simulation; wakefield; optics

Domaines: Physique des accélérateurs [physics.acc-ph]

Nuria Fuster-Martínez, Philip Bambade, Angeles Faus-Golfe, Kiyoshi Kubo, Toshiyuki Okugi, et al.. Performance Studies of a Single Vertical Beam Halo Collimation System at ATF2. 5th International Beam Instrumentation Conference, Sep 2016, Barcelona, Spain. pp.MOPG40, ⟨10.18429/JACoW-IBIC2016-MOPG40⟩. ⟨hal-01669649⟩