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MOENCH: Micropixel with enhanced pOsition rEsolution usiNg CHarge integration

MÖNCH is a novel hybrid silicon pixel detector based on charge integration and analog readout, featuring a challengingly 25 μm pixel pitch.
It is a research project which aims to push the development of hybrid pixel detectors to its limits in terms of photon flux, position resolution, energy information and low energy detection.

MÖNCH03 is a fully functional, small scale prototype of 10x10mm2, containing an array of 400x400 pixels, designed in UMC 110nm technology.
It is optimized for low flux applications and the gain is selectable only statically. Despite being only a prototype, it has already been used for several scientific applications. Its main perfomance is highlighted in the table:

Noise 40 electrons
Dynamic range 100 12 keV photons
Frame rate 1.3 kHz

Although still a research project, the main foreseen target applications are:

  • Energy resolved experiments (XRF, Laue diffraction)
  • (sub-)micron resolution imaging
  • Colour imaging with X-ray tubes
  • Low energy detection

  • Wakonig K, Diaz A, Bonnin A, Stampanoni M, Bergamaschi A, Ihli J, et al.
    X-ray Fourier ptychography
    Science Advances. 2019; 5(2): eaav0282 (6 pp.).
  • Bergamaschi A, Andrä M, Barten R, Brückner M, Chiriotti S, David C, et al.
    Hybrid detectors for high resolution imaging
    Microscopy and Microanalysis. 2018; 24(Suppl. 2): 316-318.
  • Bergamaschi A, Andrä M, Barten R, Borca C, Brückner M, Chiriotti S, et al.
    The MÖNCH detector for soft X-ray, high-resolution, and energy resolved applications
    Synchrotron Radiation News. 2018; 31(6): 11-15.
  • Dullin C, Albers J, Tromba G, Andrä M, Ramilli M, Bergamaschi A
    MÖNCH detector enables fast and low-dose free-propagation phase-contrast computed tomography of in situ mouse lungs
    Journal of Synchrotron Radiation. 2018; 25(2): 565-569.
  • Langer M, Vaz CAF, Chiriotti S, Bergamaschi A, Guizar-Sicairos M, Kleibert A, et al.
    Development of a new soft X-ray ptychography spectro-microscope at the Swiss Light Source (SLS)
    Microscopy and Microanalysis. 2018; 24(Suppl. 2): 54-55.
  • Ramilli M, Bergamaschi A, Andrae M, Brückner M, Cartier S, Dinapoli R, et al.
    Measurements with MÖNCH, a 25 μm pixel pitch hybrid pixel detector
    Journal of Instrumentation. 2017; 12(1): C01071 (8 pp.).
  • Cartier S, Kagias M, Bergamaschi A, Wang Z, Dinapoli R, Mozzanica A, et al.
    Micrometer-resolution imaging using MÖNCH: towards G2-less grating interferometry
    Journal of Synchrotron Radiation. 2016; 23(6): 1462-1473.
  • Bergamaschi A, Cartier S, Dinapoli R, Greiffenberg D, Jungmann-Smith JH, Mezza D, et al.
    Looking at single photons using hybrid detectors
    Journal of Instrumentation. 2015; 10(1): C01033 (13 pp.).
  • Cartier S, Bergamaschi A, Dinapoli R, Greiffenberg D, Johnson I, Jungmann-Smith JH, et al.
    Study of the signal response of the MÖNCH 25 μm pitch hybrid pixel detector at different photon absorption depths
    Journal of Instrumentation. 2015; 10(3): C03022 (9 pp.).
  • Cartier S, Bergamaschi A, Dinapoli R, Greiffenberg D, Johnson I, Jungmann JH, et al.
    Micron resolution of MÖNCH and GOTTHARD, small pitch charge integrating detectors with single photon sensitivity
    Journal of Instrumentation. 2014; 9(5): C05027.
  • Dinapoli R, Bergamaschi A, Cartier S, Greiffenberg D, Johnson I, Jungmann JH, et al.
    MÖNCH, a small pitch, integrating hybrid pixel detector for X-ray applications
    Journal of Instrumentation. 2014; 9(5): C05015 (9 pp.).
Person Position Phone Nr. Email
Dr. Anna Bergamaschi
Group Leader Detector Science and Characterization
Dr. Roberto Dinapoli
Microelectronics Engineer, leader of the chip design group