Commissioning Results of the Tertiary Beam Lines for the CERN Neutrino Platform Project

Alexander Booth ,I Ortega ,N Charitonidis,Y Karyotakis,Panagiota Chatzidaki ,P Sala,M Rosenthal,E Nowak

doi:10.1088/1742-6596/1350/1/012094

Abstract

For many decades the CERN North Area facility at the Super Proton Synchrotron (SPS) has delivered secondary beams to various fixed target experiments and test beams. In 2018, two new tertiary extensions of the existing beam lines, designated “H2-VLE” and “H4-VLE”, have been constructed and successfully commissioned. These beam lines have been designed to provide charged particles of both polarities in the momentum range from 0.3GeV/c to 12GeV/c. During the design phase, multiple simulation tools and techniques have been employed to optimize the tertiary beam line layout in terms of particle production, transverse beam dynamics and particle identification on an event-by-event basis. In this paper, a comparison of the simulated performance and the first measurement results obtained during the commissioning phase are presented.

Highlights

The CERN North Area facilities provides mixed secondary charged particle beams in the momentum range of 10 GeV/c up to 400 GeV/c
These new lines are designed for providing charged particle beams of both polarities in the range of 0.3 GeV/c to 12 GeV/c. Their conceptual design principles are described in [1] together with an illustration of the area is presented. These tertiary branches are serving two large-size prototype time projection chambers based on Liquid Argon technology, for the future Deep Underground Neutrino Experiment (DUNE) [2]
The generation of the tertiary particles requires the transport of a secondary mixed beam, over about 600 m, via the existing H2 and H4 beam lines to two secondary targets, located at the beginning of the very low energy (VLE) beam lines

Summary

Introduction

The CERN North Area facilities provides mixed secondary charged particle beams in the momentum range of 10 GeV/c up to 400 GeV/c. In 2018, this spectrum has been enlarged by two tertiary very low energy (VLE) beam lines, denoted H2- and H4-VLE, extending the existing H2 and H4 beam lines (see Fig. 1). These new lines are designed for providing charged particle beams of both polarities in the range of 0.3 GeV/c to 12 GeV/c. Their conceptual design principles are described in [1] together with an illustration of the area is presented. The particle identification potential of these beam lines is THPGW064 discussed using the instrumentation recently developed for this purpose

Methods

Results

Conclusion