3-11 July 2007
Merida, Mexico
Mexico/General timezone
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Contribution Poster

Merida, Mexico - Regency (Hyatt)

Next Generation TRD for CREAM Using Gas Straw Tubes and Foam Radiators

Speakers

  • Dr. Alexander MALININ

Primary authors

  • Dr. Alexander MALININ (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)

Co-authors

  • Ho Seok AHN (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Peter WALPOLE (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Jayoung WU (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Joon Hyuk YOO (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Young Soo YOON (Dept. of Physics, University of Maryland, College Park, MD 20742 USA)
  • Shun Yong ZINN (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Oleg FEDIN (Petersburg Nuclear Physics Institute, Gatchina, Leningrad district 188300, Russia)
  • Opher GANEL (nst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Ji Hye HAN (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Chan Ho KIM (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Ki Chun KIM (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Moo Hyun LEE (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Larry LUTZ (Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA)
  • Eun Suk SEO (1) Inst. for Phys. Sci. and Tech., University of Maryland, College Park, MD 20742 USA, 2) Dept. of Physics, University of Maryland, College Park, MD 20742 USA)

Abstract content

The Cosmic Ray Energetics And Mass (CREAM) experiment is designed to investigate the source, propagation and acceleration mechanism of high energy cosmic-ray nuclei, by directly measuring their energy and charge. Incorporating a transition radiation detector (TRD) provides an energy measurement complementary to the calorimeter, as well as additional track reconstruction capability. The next generation CREAM TRD is designed with 4 mm straw tubes to greatly improve tracking over the previous 20 mm tube design, thereby enhancing charge identification in the silicon charge detector (SCD). Plastic foam provides a weight-efficient radiator that doubles as a mechanical support for the straw layers. This design provides a compact, robust, reliable, low density detector to measure incident nucleus energy for 3 < Z < 30 nuclei in the Lorentz gamma factor range of 10^2-10^5. This paper discusses the new TRD design and the low power front end electronics used to achieve the large dynamic range required. Beam test results of a prototype TRD are also reported.

If this papers is presented for a collaboration, please specify the collaboration

CREAM-II

Reference

Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 2 (OG part 1), pages 345-348