Published February 2014 | Version v1
Journal article

The FAZIA project in Europe: R and D phase

Creators

  • 1. Universite de Caen, CNRS-IN2P3, LPC Caen, ENSICAEN, Caen cedex (France)
  • 2. Sezione di Firenze, INFN, Sesto Fiorentino (Italy)
  • 3. Universita di Firenze, Dipartimento di Fisica, Sesto Fiorentino (Italy)
  • 4. Universite Paris-Sud 11, Institut de Physique Nucleaire, CNRS/IN2P3, Orsay cedex (France)
  • 5. CEA/DSM-CNRS/IN2P3, GANIL, Caen cedex (France)
  • 6. Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Bucharest Magurele (Romania)
  • 7. Institute of Physics, Jagiellonian University, Krakow (Poland)
  • 8. Laboratori Nazionali del Sud, INFN, Catania (Italy)
  • 9. INFN - Sezione di Napoli, Napoli (Italy)
  • 10. Complesso Universitario di Monte S. Angelo, Napoli (Italy)
  • 11. Dipartimento di Fisica ed Astronomia, Universita di Bologna, Bologna (Italy)
  • 12. INFN, Sezione di Bologna (Italy)
  • 13. LNL Legnaro, INFN, Legnaro (Italy)
  • 14. Complesso Universitario di Monte S. Angelo, Dipartimento di Fisica, Universita di Napoli ''Federico II'', Napoli (Italy)
  • 15. Nevsehir Haci Bektas University, Science and Art Faculty, Physics Department, Nevsehir (Turkey)
  • 16. FCCEE Universidad de Huelva, Departamento de Fisica Aplicada, Huelva (Spain)
  • 17. Complesso Universitario di Monte S. Angelo, Istituto SPIN - CNR, Napoli (Italy)
  • 18. Conservatoire National des Arts et Metiers, Paris (France)
  • 19. University of Silesia, August Chellkowski Institute of Physics, Katowice (Poland)
  • 20. Universita di Napoli ''Federico II'', Dipartimento di Informatica e Sistemistica, Napoli (Italy)
  • 21. Sezione di Bologna, INFN, Bologna (Italy)
  • 22. Institute of Nuclear Physics PAN, Krakow (Poland)
  • 23. University of Warsaw, Heavy Ion Laboratory, Warsaw (Poland)

Description

The goal of the FAZIA Collaboration is the design of a new-generation 4π detector array for heavy-ion collisions with radioactive beams. This article summarizes the main results of the R and D phase, devoted to the search for significant improvements of the techniques for charge and mass identification of reaction products. This was obtained by means of a systematic study of the basic detection module, consisting of two transmission-mounted silicon detectors followed by a CsI(Tl) scintillator. Significant improvements in ΔE-E and pulse-shape techniques were obtained by controlling the doping homogeneity and the cutting angles of silicon and by putting severe constraints on thickness uniformity. Purposely designed digital electronics contributed to identification quality. The issue of possible degradation related to radiation damage of silicon was also addressed. The experimental activity was accompanied by studies on the physics governing signal evolution in silicon. The good identification quality obtained with the prototypes during the R and D phase, allowed us to investigate also some aspects of isospin physics, namely isospin transport and odd-even staggering. Now, after the conclusion of the R and D period, the FAZIA Collaboration has entered the demonstrator phase, with the aim of verifying the applicability of the devised solutions for the realization of a larger-scale experimental set-up. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2014-14047-4

Additional details

Identifiers

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
50
Journal Issue
2
Journal Page Range
p. 1-20
ISSN
1434-6001

Optional Information

Collaborations
The FAZIA Collaboration