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(Jun. 21) EMuS target station studies

Last updated :2017-06-19

Topic: EMuS target station studies
Speaker: Dr. Nikolaos Vassilopoulos
Moderator:
Dr. TANG Jian
Time: 10:00-11:00 am, Wednesday, June 21, 2017
Venue: 2nd floor, No. 339 Building, Guangzhou South Campus, SYSU

Abstract:
The experimental muon source (EMuS) is a high-intensity muon source at China Spallation Neutron Source (CSNS), aiming to combine muSR applications, R&D efforts for a future muon-decay based neutrino beam, and neutrino cross-section measurements. The proton beam has 4 kW of power and is provided by the rapid cycling synchrotron (RCS) of CSNS to a capture system that consists of an adiabatic superconductive solenoid with a maximum field of 5 T and a graphite target located inside the first coil, in order to maximize muons/pions capture and reduce their transverse momentum. In this article we present the challenging target system and the optimization studies that led to the current 4-coil/3-step design. The
challenge arises from the necessary extraction of the spent proton beam along the downstream area of the capture solenoid through a hole, in order to separate it from the muons and pions. In addition, shielding studies are presented in order to examine the effectiveness of the shields on the coils and the low radiation damage expected in the system.

Nikolaos Vassilopoulos:
SEP-1994 to AUG-1998: DPhil (PhD), Particle and Astrophysics Laboratory, University of Oxford
SEP-1987 to SEP-1994: Diploma in Physics, Department of Physics, Athens University

Awards:
AUG-1998 to DEC-2000: Awarded Fellowship at CERN
SEP-1994 to AUG-1998: Awarded the Ismene Fitch Foundation Scholarship of Switzerland, managed by the Athens British Council and attached to Wolfson College at Oxford University