CERN’s Secondary Beamlines and Experimental Areas

by Fabian Metzger

Friday 28 Nov 2025, 14:30 → 15:15 Europe/Zurich

NB2/158 (RUB)

Abstract:

The secondary beamlines of CERN’s North and East Areas are designed to deliver a 
wide spectrum of secondary and tertiary particles, as well as attenuated primary 
protons and ions originating from the PS and SPS accelerators. Protons at 24 GeV$/c$
from the PS and 400 GeV$/c$ from the SPS generate hadrons, electrons, and muons over 
a broad momentum range—from 0.1 GeV$/c$ to 360 GeV$/c$—with fluxes spanning from a 
few hundred to 10⁹ particles per spill. These beams serve numerous fixed-target 
experiments and test-beam facilities distributed across the experimental areas.
This seminar will present the main features of the beamlines and the beams they 
provide, with an emphasis on the techniques used to deliver primary beams 
simultaneously to multiple targets and to extract multiple secondary beams from a 
single production point. In addition, we will discuss current approaches to modelling 
and simulating primary and secondary beam transport in order to accurately predict 
beam properties and backgrounds, particularly in view of the requirements of the future 
Beam Dump Facility to be installed during Long Shutdown 3.

2025-11-28-Seminar-University-of-Bochum.pdf

2025-11-28-Seminar-University-of-Bochum.pptx