ADJUSTING SAFIIRA BEAM LINE FOR THE CHARACTERIZATION OF A TRACKER GAS DETECTOR

Authors

  • J. V. Schervenin Universidade de São Paulo – Instituto de Física – São Paulo (SP), Brazil.
  • N. H. Medina Universidade de São Paulo – Instituto de Física – São Paulo (SP), Brazil.
  • Vitor Ângelo Paulino de Aguiar Universidade de São Paulo – Instituto de Física – São Paulo (SP), Brazil.
  • Nemitala Added Universidade de São Paulo – Instituto de Física – São Paulo (SP), Brazil.
  • José Roberto Brandão de Oliveira Universidade de São Paulo – Instituto de Física – São Paulo (SP), Brazil.
  • Marcilei Aparecida Guazzelli Centro Universitário FEI – Departamento de Física – São Bernardo do Campo (SP), Brazil.
  • Manuela Cavallaro Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Francesco Cappuzzello Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy. , Università di Catania – Dipartimento di Fisica e Astronomia “Ettore Majorana” – Catania, Italy.
  • Alessandro Spatafora Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Domenico Torresi Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Clementina Agodi Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Diana Carbone Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Onoufrios Sgouros Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.
  • Vasileios Soukeras Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali del Sud – Catania, Italy.

DOI:

https://doi.org/10.17563/rbav.v45i1.1279

Keywords:

Low-Pressure Detector Operation, Beamline Modification, Pelletron Accelerator

Abstract

This work presents the structural and instrumental modifications carried out on the Ion beam system for irradiation and applications (SAFIIRA) beamline at the Pelletron accelerator of the Universidade de São Paulo to enable the in-beam characterization of a gas tracker prototype developed for the Nuclear Matrix Elements for Neutrinoless Double Beta Decay (NUMEN) Project. The beamline was adapted to operate with high-purity isobutane at low pressures (10–30 mbar), requiring the implementation of a dedicated gas handling system, the installation of a thin silicon nitride (Si3N4) entrance window, a motorized target tower, and a chamber extension. The detector was tested with 16O, 12C, and 7Li ion beams under various tilt angles and beam rates. The system exhibited high stability during operation, with no signs of discharge or vacuum failure, confirming the suitability of the modified SAFIIRA setup for gas detector characterization under realistic experimental conditions.

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References

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Published

2026-05-09

Issue

Vol. 45 No. 1 (2026): (Jan-Dec)

Section

Original Paper

License

Copyright (c) 2026 J. V. Schervenin, N. H. Medina, Vitor Ângelo Paulino de Aguiar, Nemitala Added, José Roberto Brandão de Oliveira, Marcilei Aparecida Guazzelli, Manuela Cavallaro, Francesco Cappuzzello, Alessandro Spatafora, Domenico Torresi, Clementina Agodi, Diana Carbone, Onoufrios Sgouros, Vasileios Soukeras

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