Evaluation of high UV sensitive SiPMs from MEPhI/MPI for use in liquid argon

Popova, E.

doi:10.22323/1.158.0034

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…After approximately 9.5 ns, the micro-cells are recovered to 90 % of their maximum charge. Using the double-light-pulse method, as proposed in [28], comparable results were achieved. This confirms that the SER shape reflects the true recovery process in this case.…”

Section: A Single Electron Responsementioning

confidence: 86%

Tip Avalanche Photodiode -- A new generation Silicon Photomultiplier based on non-planar technology

Engelmann¹,

Schmailzl²,

Iskra³

et al. 2020

Preprint

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The Silicon Photomultiplier (SiPM) is a mature photodetector concept that is applied in a variety of applications ranging from medical imaging to automotive LiDAR systems. Over the last few years, improvements of the sensor performance are gradually approaching to a saturation. In this work we present our new concept to overcome the intrinsic limitations of planar configurations of electrodes. Our non-planar technology is based on focusing and enhancing the electric fields by tip-like electrodes. The shape of the electric field and the lack of typical micro-cell edges, allows us to exclude cell separation boundaries and eliminate dead space around active cell areas. Our design provides a high-density micro-cell layout with a high geometric efficiency. It resolves the well-known trade-off between the detection efficiency and the dynamic range. The first "Tip Avalanche Photodiode" (TAPD) prototypes show a remarkable geometric efficiency above 80 % for a micro-cell pitch of 15 µm. This directly translates into a photon detection efficiency (PDE) record peak value of 73 % at 600 nm with respect to the state-of-the-art SiPMs. Moreover, the PDE remains above a value of 45 % up to a wavelength of 800 nm with another record value of 22 % at 905 nm. The reduced micro-cell capacity allows for a fast recovery time below 4 ns, which improves the operation at high photon rates. Overall, the TAPD is anticipated to be a very promising SiPM generation for various wide-spectral and high-dynamic-range applications in health science, biophysics, particle physics and LiDARs.

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Section: A Single Electron Responsementioning

confidence: 86%

Tip Avalanche Photodiode -- A new generation Silicon Photomultiplier based on non-planar technology

Engelmann¹,

Schmailzl²,

Iskra³

et al. 2020

Preprint

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“…We tested a vertical current-flow SiPM (Excelitas c30742-11, microcells [23]) and a horizontal current-flow SiPM (PoliMI [12]) by means of a current feedback amplifier (Texas Instruments LMH6702). We measured SiPM parameters by means of a curve tracer (Tektronics 370) and a network analyzer (HP 8753d), following the procedure described in [24]. Vertical current-flow SiPM values are consistent with the parameters provided by the manufacturer ( V, M , , fF, fF, fF for each microcell); horizontal current-flow SiPM values match those extracted through Virtuoso RCX during design ( V, k , , fF, fF, fF, fF, fF for each microcell).…”

Section: Comparison Of Simulations Vs Measurementsmentioning

confidence: 99%

SPICE Electrical Models and Simulations of Silicon Photomultipliers

Villa

Zou

Mora

et al. 2015

IEEE Trans. Nucl. Sci.

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We present and discuss a comprehensive electrical\ud model for Silicon Photomultipliers (SiPMs) based on a microcell\ud able to accurately simulate the avalanche current build-up and\ud the self-quenching of its Single-Photon Avalanche Diode (SPAD)\ud “pixel” with series-connected quenching resistor. The entire SiPM\ud is modeled either as an array of microcells, each one individually\ud triggered by independent incoming photons, or as two macrocells,\ud one with microcells all firing concurrently while the other one with\ud all quiescent microcells; the most suitable approach depends on\ud the light excitation conditions and on the dimension (i.e. number\ud of microcells) of the overall SiPM. We validated both models by\ud studying the behavior of SiPMs in different operating conditions,\ud in order to study the effect of photons pile-up, the deterministic\ud and statistical mismatches between microcells, the impact of\ud the number of firing microcells vs. the total one, and the role of\ud different microcell parameters on the overall SiPM performance.\ud The electrical models were developed in SPICE and can simulate\ud both custom-process and CMOS-compatible SiPMs, with either\ud vertical or horizontal current-flow. The proposed simulation tools\ud can benefit both SiPM users, e.g. for designing the best readout\ud electronics, and SiPM designers, for assessing the impact of each\ud parameter on the overall detection performance and electrical\ud behavior

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