STRASSE: A Silicon Tracker for Quasi-free Scattering Measurements at the RIBF
Abstract
STRASSE (Silicon Tracker for RAdioactive nuclei Studies at SAMURAI Experiments) is a new detection system under construction for quasi-free scattering (QFS) measurements at 200-250 MeV/nucleon at the RIBF facility of the RIKEN Nishina Center. It consists of a charged-particle silicon tracker coupled with a dedicated thick liquid hydrogen target (up to 150-mm long) in a compact geometry to fit inside large scintillator or germanium arrays. Its design was optimized for two types of studies using QFS: missing-mass measurements and in-flight prompt -ray spectroscopy. This article describes (i) the resolution requirements needed to go beyond the sensitivity of existing systems for these two types of measurements, (ii) the conceptual design of the system using detailed simulations of the setup and (iii) its complete technical implementation and challenges. The final tracker aims at a sub-mm reaction vertex resolution and is expected to reach a missing-mass resolution below 2 MeV in for reactions when combined with the CsI(Na) CATANA array.
Keywords
Cite
@article{arxiv.2301.09276,
title = {STRASSE: A Silicon Tracker for Quasi-free Scattering Measurements at the RIBF},
author = {H. N. Liu and F. Flavigny and H. Baba and M. Boehmer and U. Bonnes and V. Borshchov and P. Doornenbal and N. Ebina and M. Enciu and A. Frotscher and R. Gernhäuser and V. Girard-Alcindor and D. Goupillière and J. Heuser and R. Kapell and Y. Kondo and H. Lee and J. Lehnert and T. Matsui and A. Matta and T. Nakamura and A. Obertelli and T. Pohl and M. Protsenko and M. Sasano and Y. Satou and C. J. Schmidt and K. Schünemann and C. Simons and Y. L. Sun and J. Tanaka and Y. Togano and T. Tomai and I. Tymchuk and T. Uesaka and R. Visinka and H. Wang and F. Wienholtz},
journal= {arXiv preprint arXiv:2301.09276},
year = {2023}
}
Comments
25 pages, 29 figures