The simulation results of signal fluctuation for micromegas-like gaseous detector


Demir N.

Instruments and Experimental Techniques, cilt.55, sa.5, ss.542-544, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 5
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1134/s0020441212040100
  • Dergi Adı: Instruments and Experimental Techniques
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.542-544
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In the present paper, the mean signal value and its fluctuations were investigated for the well known Micro-Mesh Gaseous Structure (Micromegas) filled with argon-based gas mixtures. The number of primary electrons and ions in the conversion gap were calculated using the FLUKA code for incoming electrons. The signal resolution is a function of the energy loss or the number of produced primary electrons and its fluctuation in the detector volume. The signal generations were made with a Single Particle Monte Carlo simulation technique in the amplification gap region. We assumed a homogeneous electric field inside both the conversion and the amplification gap because the electric field shows only a small change near the openings of the microgrid. Based on the simulation, we discuss the signal fluctuations that affect the work performance of the Micromegas for different argon-based gas mixtures. © Pleiades Publishing, Ltd., 2012.