Amplification and scintillation properties of oxygen-rich gas mixtures for optical-TPC applications


Journal Article

We studied electron amplification and light emission from avalanches in oxygen-containing gas mixtures. The mixtures investigated in this work included, among others, CO2 and N2O mixed with Triethylamine (TEA) or N2. Double-Step Parallel Gap (DSPG) multipliers and THick Gas Electron Multipliers (THGEM) were investigated. High light yields were measured from CO2+N2 and CO2+TEA, though with different emission spectra. We observed the characteristic wave-length emission of N 2 and of TEA and used a polymer wave-length shifter to convert TEA UV-light into the visible spectrum. The results of these measurements indicate the applicability of optical recording of ionizing tracks in a TPC target-detector designed to study the cross-sections of the 16O(γ,α)12C reaction, a central problem in nuclear astrophysics.

Full Text

Duke Authors

Cited Authors

  • Weissman, L; Gai, M; Breskin, A; Chechik, R; Dangendorf, V; Tittelmeier, K; Weller, HR

Published Date

  • May 5, 2006

Published In

Volume / Issue

  • 1 / 1

Start / End Page

  • 1 - 17

Electronic International Standard Serial Number (EISSN)

  • 1748-0221

International Standard Serial Number (ISSN)

  • 1748-0221

Digital Object Identifier (DOI)

  • 10.1088/1748-0221/1/05/p05002

Citation Source

  • Scopus