MOENCH: Micropixel with enhanced pOsition rEsolution usiNg CHarge integration
Detector description
MÖNCH is an advanced hybrid silicon pixel detector, based on charge integration and analog readout, distinguished by its exceptionally small 25 μm pixel pitch. This research project aims to push the boundaries of hybrid pixel detector technology in terms of photon flux, spatial resolution, energy discrimination, and low-energy X-ray detection.
The MÖNCH03 prototype is a fully functional, small-scale detector with dimensions of 10x10 mm², containing an array of 400x400 pixels. It was designed using UMC 110 nm technology and is optimized for low-flux applications, with statically selectable gain settings. Despite being a prototype, MÖNCH03 has already been utilized in various scientific applications, demonstrating its versatility and potential. Key performance specifications are outlined below.
Noise | 40 electrons |
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Dynamic range | 100 12 keV photons |
Frame rate | 1.3 kHz |
Applications
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
Preliminary results
Publications
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Heymes J, Barten R, Baruffaldi F, Bergamaschi A, Brückner M, Carulla M, et al.
Balancing gain and dynamic range in a 25 µm pitch hybrid pixel detector
Journal of Instrumentation. 2024; 19(01): C01012 (9 pp.). https://doi.org/10.1088/1748-0221/19/01/C01012
DORA PSI -
Xie X, Barba Flores L, Bejar Haro B, Bergamaschi A, Fröjdh E, Müller E, et al.
Enhancing spatial resolution in MÖNCH for electron microscopy via deep learning
Journal of Instrumentation. 2024; 19(01): C01020 (11 pp.). https://doi.org/10.1088/1748-0221/19/01/C01020
DORA PSI -
Chiriotti S, Barten R, Bergamaschi A, Brückner M, Carulla M, Chsherbakov I, et al.
High-spatial resolution measurements with a GaAs:Cr sensor using the charge integrating MÖNCH detector with a pixel pitch of 25 μm
Journal of Instrumentation. 2022; 17: P04007 (17 pp.). https://doi.org/10.1088/1748-0221/17/04/P04007
DORA PSI -
Dreier ES, Bergamaschi A, Kallon GK, Brönnimann R, Olsen UL, Olivo A, et al.
Tracking based, high-resolution single-shot multimodal x-ray imaging in the laboratory enabled by the sub-pixel resolution capabilities of the MÖNCH detector
Applied Physics Letters. 2020; 117(26): 264101 (6 pp.). https://doi.org/10.1063/5.0027763
DORA PSI -
Wakonig K, Diaz A, Chiriotti S, Bergamaschi A, Bonnin A, Stampanoni M, et al.
X-ray Fourier ptychography for out-of-focus measurements
In: Lai B, Somogyi A, eds. X-ray nanoimaging: instruments and methods IV. Vol. 11112. Proceedings of SPIE. Bellingham, WA: SPIE; 2019:111120I (7 pp.). https://doi.org/10.1117/12.2528905
DORA PSI -
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.). https://doi.org/10.1126/sciadv.aav0282
DORA PSI -
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. https://doi.org/10.1017/S1431927618013910
DORA PSI -
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. https://doi.org/10.1080/08940886.2018.1528428
DORA PSI -
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. https://doi.org/10.1107/S160057751701668X
DORA PSI -
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. https://doi.org/10.1017/S1431927618012709
DORA PSI -
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.). https://doi.org/10.1088/1748-0221/12/01/C01071
DORA PSI -
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. https://doi.org/10.1107/S1600577516014788
DORA PSI -
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.). https://doi.org/10.1088/1748-0221/10/01/C01033
DORA PSI -
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.). https://doi.org/10.1088/1748-0221/10/03/C03022
DORA PSI -
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. https://doi.org/10.1088/1748-0221/9/05/C05027
DORA PSI -
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.). https://doi.org/10.1088/1748-0221/9/05/C05015
DORA PSI
Team
Person | Position | Phone Nr. | |
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Dr. Anna Bergamaschi | Group Leader Detector Science and Characterization
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Dr. Roberto Dinapoli | Microelectronics Engineer, leader of the chip design group
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Dr. Julian Brice Dominique Heymes | PostDoc
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