The trigger and DAQ system of the surface detector array of the telescope array experiment

A. Taketa, E. Kido, T. Nonaka, H. Ohoka, T. Okuda, Shunsuke Ozawa, M. Fukushima, H. Sagawa, Y. Yamakawa, J. W. Belz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The surface detector (SD) array of the Telescope Array (TA) experiment consists of 507 plastic scintillation detectors, deployed on a square grid with 1.2 km spacing. The trigger and DAQ system of the TA surface detector array is the key to provide reliable SD data. To achieve efficient SD DAQ, we divided the whole area into three regions which have one communication tower with one host electronics system respectively. The host communicates via radios with each surface detector in the region. We developed a real-time system that monitors a variety of information in the background for SD calibration and maintenance. The trigger and DAQ system began full operation in March, 2008. We installed a cross-boundary trigger between neighboring regions to make the shower trigger efficiency uniform in the whole region except the border of the array in November, 2008. Here we report the detail of the TA SD trigger and DAQ system.

Original languageEnglish
Title of host publication31st International Cosmic Ray Conference, ICRC 2009
PublisherUniversity of Lodz
Publication statusPublished - 2009
Event31st International Cosmic Ray Conference, ICRC 2009 - Lodz, Poland
Duration: 2009 Jul 72009 Jul 15

Other

Other31st International Cosmic Ray Conference, ICRC 2009
CountryPoland
CityLodz
Period09/7/709/7/15

Keywords

  • Surface detector
  • Trigger and DAQ
  • Ultra high energy cosmic rays

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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