Trends in pixel detectors: tracking and imaging

Wermes, N.

doi:10.1109/tns.2004.829438

Cited by 49 publications

(6 citation statements)

References 42 publications

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“…[21], [22]), partially using incomplete charge collection, DEPFET pixels excel in excellent energy (ENC = 2.2e, σ E =131 eV) and space (4.3 µm at 20 keV X-rays) resolutions. This can be exploited in a variety of applications.…”

Section: Discussionmentioning

confidence: 99%

New results on DEPFET pixel detectors for radiation imaging and high energy particle detection

Wermes¹,

Andricek²,

Fischer³

et al. 2003

2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515)

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Abstract-DEPFET pixel detectors are unique devices in terms of energy and spatial resolution because very low noise (ENC = 2.2e at room temperature) operation can be obtained by implementing the amplifying transistor in the pixel cell itself. Full DEPFET pixel matrices have been built and operated for autoradiographical imaging with imaging resolutions of 4.3±0.8 µm at 22 keV. For applications in low energy X-ray astronomy the high energy resolution of DEPFET detectors is attractive. For particle physics, DEPFET pixels are interesting as low material detectors with high spatial resolution. For a Linear Collider detector the readout must be very fast. New readout chips have been designed and produced for the development of a DEPFET module for a pixel detector at the proposed TESLA collider (520x4000 pixels) with 50 MHz line rate and 25 kHz frame rate. The circuitry contains current memory cells and current hit scanners for fast pedestal subtraction and sparsified readout. The imaging performance of DEPFET devices as well as present achievements towards a DEPFET vertex detector for a Linear Collider are presented.

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Section: Discussionmentioning

confidence: 99%

New results on DEPFET pixel detectors for radiation imaging and high energy particle detection

Wermes¹,

Andricek²,

Fischer³

et al. 2003

2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515)

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“…The 2D pixel detector, or hybrid pixel detector, for detection of particles, X-, and gamma-rays is a well-known method that has been in use for various applications for more than a decade (Wermes, 2004; Rossi et al ., 2006). The physical principle is depicted in Figure 3.…”

Section: D Pixel Architecturementioning

confidence: 99%

A 2D pixel detector for very high-rate X- and gamma-ray spectroscopy and imaging

Nygård¹,

Malakhov²,

Weilhammer³

et al. 2017

Powder Diffr.

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“…As the charge is not removed from the internal gate by probing the transistor current, DEPFET pixel need an external reset mechanism, also known as the clearing of the internal gate. The reliability of the clear mechanism has already been demonstrated in [4] as it is essential for providing a stable pedestal reference in an ILC operation mode.…”

Section: The Depfet Concept For a Micro Vertex Detectormentioning

confidence: 99%

A DEPFET pixel matrix system for the ILC vertex detector

Trimpl

Andricek

Fischer³

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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The DEPFET detector offers radiation detection and amplification jointly by embedding a field effect transistor into fully depleted silicon. Due to the excellent noise performance (ENC ¼ 2:2 e À for single pixel at room temperature and 6 ms shaping time) and the high spatial resolution of the device (4:3 mm at 22 keV using 50 Â 50 mm 2 pixels), the DEPFET concept is attractive for X-ray astronomy, for biomedical application and for tracking in particle physics. For the vertex detector of a future TeV-scale linear collider, like the proposed ILC (International Linear Collider), a highly granulated pixel system operated row-wise with line rates of 20 MHz at a noise level below 100 e À is needed. Addressing these requirements, improved DEPFET sensors with 22 Â 36 mm 2 pixel size have been fabricated. A prototype system has been developed that uses dedicated chips for steering and readout of a 64 Â 128 DEPFET pixel matrix. Due to the current based readout mode provided by the readout chip, a thousand times faster matrix operation than achieved so far is possible. The performance of the single components of the system will be summarized and first results obtained with the entire system will be presented. r

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Trends in pixel detectors: tracking and imaging

Cited by 49 publications

References 42 publications

New results on DEPFET pixel detectors for radiation imaging and high energy particle detection

New results on DEPFET pixel detectors for radiation imaging and high energy particle detection

A 2D pixel detector for very high-rate X- and gamma-ray spectroscopy and imaging

A DEPFET pixel matrix system for the ILC vertex detector

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