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light detector - il cattivo
light detector - il cattivoEdit

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    INFO

     

    Name / nom light detector - il cattivo
    Absorber / absorbeur

    Ge wafer - diameter 10 mm x 10 mm - h 300 µm

    Thermistor

    around 5 mg

    Bonding

    NTD: gold wire - 25 µm

    Supports/ supports teflon supports
    Holder Cu
    Notes

    pin (no kapton)

    oxidized Ge surface
    previously used with ZnSe crystal

       

     

    PHOTO

    ilBruttoedilCattivo.png

    CHARACTERIZATION / CARACTERISATION

    1 - Ulisse cryostat - RUN19 - gen 2016

    semi-vintage electronic

    Source / sources

    55Fe

    Optic fiber: Agilent HFBR 820nm - datasheet attached

       

     

    IMG_20160120_171156d.jpg

     

    M1

    DR=+-5        gain=1403        fs=20kHz        bessel = 675 Hz

    I bias = 0.622 nA

    R = 9 Mohm

     

    M2, M9, M10, M3, M4

    DR=+-1        gain=1403        fs=20kHz        bessel = 675 Hz

    I bias = 1.25 nA

      M1 M2 M9 M10 M3 M4
    Sensibility [nV/keV] 673 (µ) 503.8 475 497 512 495
    Sigma 55Fe [keV] no 55Fe too noisy - - - - -
    Sigma baseline [eV] no 55Fe too noisy 569 647 650 754 478
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