Electrical measurements of a multi-mode hybrid pixel detector ASIC for radiation detection

Wong, Winnie; Anton, G.; Ballabriga, R.; Blaj, G.; Böhnel, Michael; Campbell, M.; Gabor, T; Heijne, E.H.M.; Llopart, X.; Michel, Thilo; Ritter, I.; Poikela, T.; Sievers, P.; Tlustos, L.; Valerio, P.

doi:10.1088/1748-0221/7/01/c01056

Cited by 10 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Digital circuitry for in-pixel processing becomes a more prominent part in the pixel in terms of area and transistor count. This trend is also visible in pixel readout chips developed as a spin-off for other applications [65][66][67][68][69][70][71][72][73] like photon counting: TABLE II. lists several readout chips, the ones intended for high energy physics (white background) all use enclosed layout except ClicPix_demo [77] where the 65 nm technology provides sufficient radiation tolerance without it, the one for other applications (gray background) do not use enclosed layout except Eiger [72] [73].…”

Section: B Front-end Readout Chipsmentioning

confidence: 87%

How chips helped discover the Higgs boson at CERN

Snoeys¹

2014

ESSCIRC 2014 - 40th European Solid State Circuits Conference (ESSCIRC)

View full text Add to dashboard Cite

Integrated circuits and devices revolutionized particle physics experiments, and have been a cornerstone in the recent discovery of the Higgs boson by the ATLAS and CMS experiments at the Large Hadron Collider at CERN. Particles are accelerated and brought into collision at specific interaction points. Detectors are giant cameras, about 40 m long by 20 m in diameter, constructed around these interaction points to take pictures of collision products as they fly away from the collision point. They contain millions of channels, often implemented as reverse biased silicon pin diode arrays covering areas of up to 200 m 2 in the center of the experiment, generating a small (~1fC) electric charge upon particle traversals. Integrated circuits provide the readout, and accept collision rates of about 40 MHz with on-line selection of potentially interesting events before data storage. Power consumption directly impacts the measurement quality as it governs the amount of material present in the detector. Radiation tolerance has to exceed space requirements by orders of magnitude. The presence of tens of thousands of chips in a single system requires special attention to uniformity, robustness and redundancy.

show abstract

Section: B Front-end Readout Chipsmentioning

confidence: 87%

How chips helped discover the Higgs boson at CERN

Snoeys¹

2014

ESSCIRC 2014 - 40th European Solid State Circuits Conference (ESSCIRC)

View full text Add to dashboard Cite

show abstract

“…The Dosepix-detector [22] is a hybrid photon-counting pixel detector with a 16 × 16 pixel matrix. The pixel pitch is 220 µm, resulting in an active area of about 3.5 × 3.5 mm 2 .…”

Section: Methodsmentioning

confidence: 99%

Energy weighted x-ray dark-field imaging

Pelzer¹,

Zang²,

Anton³

et al. 2014

Opt. Express

View full text Add to dashboard Cite

Abstract:The dark-field image obtained in grating-based x-ray phasecontrast imaging can provide information about the objects' microstructures on a scale smaller than the pixel size even with low geometric magnification.In this publication we demonstrate that the dark-field image quality can be enhanced with an energy-resolving pixel detector. Energy-resolved x-ray dark-field images were acquired with a 16-energy-channel photon-counting pixel detector with a 1 mm thick CdTe sensor in a Talbot-Lau x-ray interferometer. A method for contrast-noise-ratio (CNR) enhancement is proposed and validated experimentally. In measurements, a CNR improvement by a factor of 1.14 was obtained. This is equivalent to a possible radiation dose reduction of 23%. x-ray dark-field imaging using a grating interferometer," Nat. Mater. 7, 134-137 (2008). 5. A. Momose, T. Takeda, Y. Itai, and K. Hirano, "Phasecontrast xray computed tomography for observing biological soft tissues," Nat. Med. 2(4), 473-475 (1996). 6. F. Pfeiffer, T. Weitkamp, O. Bunk, and C. David, "Phase retrieval and differential phase-contrast imaging with low-brilliance x-ray sources," Nat. Phys. 2(4), 258-261 (2006). 7. T. Weitkamp, C. David, O. Bunk, J. Bruder, P. Cloetens, and F. Pfeiffer, "X-ray phase radiography and tomography of soft tissue using grating interferometry," Eur. J. Radiol. 68(3), 13-17 (2008

show abstract

“…The basic concept was to design a chip composed of a matrix of pixels each containing a multi-channel analyser circuit. The Dosepix chip contains a matrix of 16 × 16 pixels at a pitch of 220 μm [40,41]. Many details of the circuit can be found in [42].…”

Section: Dosepixmentioning

confidence: 99%

Asic developments for radiation imaging applications: The medipix and timepix family

Ballabriga

Llopart

Campbell

2018

Nuclear Instruments and Methods in Physics Research Section A:

135

View full text Add to dashboard Cite

Hybrid pixel detectors were developed to meet the requirements for tracking in the inner layers at the LHC experiments. With low input capacitance per channel (10-100 fF) it is relatively straightforward to design pulse processing readout electronics with input referred noise of ∼100 e-rms and pulse shaping times consistent with tagging of events to a single LHC bunch crossing providing clean 'images' of the ionising tracks generated. In the Medipix Collaborations the same concept has been adapted to provide practically noise hit free imaging in a wide range of applications. This paper reports on the development of three generations of readout ASICs. Two distinctive streams of development can be identified: the Medipix ASICs which integrate data from multiple hits on a pixel and provide the images in the form of frames and the Timepix ASICs who aim to send as much information about individual interactions as possible off-chip for further processing. One outstanding circumstance in the use of these devices has been their numerous successful applications, thanks to a large and active community of developers and users. That process has even permitted new developments for detectors for High Energy Physics. This paper reviews the ASICs themselves and details some of the many applications.

show abstract

Electrical measurements of a multi-mode hybrid pixel detector ASIC for radiation detection

Cited by 10 publications

References 4 publications

How chips helped discover the Higgs boson at CERN

How chips helped discover the Higgs boson at CERN

Energy weighted x-ray dark-field imaging

Asic developments for radiation imaging applications: The medipix and timepix family

Contact Info

Product

Resources

About