Development of a cold-neutron imaging detector based on thick gaseous electron multiplier

M. Cortesi, Robert Zboray, A. Kaestner, H. M. Prasser

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    We present the results of our recent studies on a cold-neutron imaging detector prototype based on THick Gaseous Electron Multiplier (THGEM). The detector consists of a thin Boron layer, for neutron-to-charged particle conversion, coupled to two THGEM electrodes in cascade for charge amplification and a position-sensitive charge-readout anode. The detector operates in Ne/(5%)CF4, at atmospheric pressure, in a stable condition at a gain of around 104. Due to the geometrical structure of the detector elements (THGEM geometry and charge read-out anode), the image of detector active area shows a large inhomogeneity, corrected using a dedicated flat-filed correction algorithm. The prototype provides a detection efficiency of 5% and an effective spatial resolution of the order of 1.3 mm.

    Original languageEnglish (US)
    Article number023305
    JournalReview of Scientific Instruments
    Volume84
    Issue number2
    DOIs
    StatePublished - Feb 1 2013

    Fingerprint

    Electron multipliers
    cold neutrons
    photomultiplier tubes
    Neutrons
    Detectors
    Imaging techniques
    detectors
    Anodes
    anodes
    prototypes
    Charged particles
    Atmospheric pressure
    Amplification
    Boron
    readout
    atmospheric pressure
    cascades
    charged particles
    boron
    inhomogeneity

    All Science Journal Classification (ASJC) codes

    • Instrumentation

    Cite this

    Cortesi, M. ; Zboray, Robert ; Kaestner, A. ; Prasser, H. M. / Development of a cold-neutron imaging detector based on thick gaseous electron multiplier. In: Review of Scientific Instruments. 2013 ; Vol. 84, No. 2.
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    Development of a cold-neutron imaging detector based on thick gaseous electron multiplier. / Cortesi, M.; Zboray, Robert; Kaestner, A.; Prasser, H. M.

    In: Review of Scientific Instruments, Vol. 84, No. 2, 023305, 01.02.2013.

    Research output: Contribution to journalArticle

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