Teledyne e2v sensors optimised for ground-based and space applications

Jorden, Paul; Bourke, D. G.; Cassidy, Ryan; Jerram, Paul; Pratlong, Jérôme; Swindells, Ian; Woffinden, Charles

doi:10.1117/12.2310097

Cited by 10 publications

(9 citation statements)

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“…This sensor has previously been used on NASA's SOPHIA and ESA's CHEOPS missions. After the performance of the setup has been verified, we intend to test and fully characterize Teledyne's digital output CIS120 sensor, 21,22 which is currently being considered for application on upcoming planetary exploration missions.…”

Section: Discussionmentioning

confidence: 99%

A detector characterization setup for testing performance under space environmental conditions

Grott,

Behnke,

Michaelis

et al. 2023

Infrared Remote Sensing and Instrumentation XXXI

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We report on the design of a new laboratory setup for testing the performance of optical and thermal sensors at temperatures ranging from 50 K to 350 K and pressures ranging from ambient atmospheric pressures down to 10 ´5 mbar. The system will be built around a closed-cycle cooled cryostat which houses the device under test. Optical stimuli will be provided by a calibrated selectable light source which provides collimated light from an integrating sphere or a cavity blackbody. Bandpass filters as well as imaging targets can be selected for determining the spectral response and modular transfer function. Data acquisition from the device under test will be accomplished using an automated test bench based on a custom-made FPGA interface adaption board.

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Section: Discussionmentioning

confidence: 99%

A detector characterization setup for testing performance under space environmental conditions

Grott,

Behnke,

Michaelis

et al. 2023

Infrared Remote Sensing and Instrumentation XXXI

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“…The CIS221-X design is based on the readout architecture of the Teledyne-e2v Capella CIS120. 9 The 4T PPD pixels are built on 35 µm thick, high-resistivity epitaxial silicon and feature deep depletion extension (DDE) implants, facilitating over depletion by reverse substrate bias. 10 The 2048 × 2048 pixel array is composed of 4 equally sized regions of square pixels, half of which are covered by an optical-light blocking filter (OBF).…”

Section: Cis221-xmentioning

confidence: 99%

Characterization, quantum efficiency, and radiation hardness of a CMOS image sensor optimized for soft x-ray astronomy

Townsend-Rose,

Buggey,

Ivory

et al. 2023

UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII

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CIS221-X is the first in a new generation of monolithic CMOS image sensors optimized for soft x-ray applications. The pixels are built on 35 μm thick, high-resistivity epitaxial silicon and feature Deep Depletion Extension (DDE) implants, facilitating over depletion by reverse substrate bias. When cooled to -40 °C, CIS221-X reports a readout noise of 3.3 e- RMS and 12.4 ± 0.06 e-/pixel/s of dark current. The 40μm pixels experience near-zero image lag. Following per-pixel gain correction, an energy resolution of 130 ± 0.4 eV FWHM has been measured at 5.9 keV. In the 0.3 – 1.8 keV energy range, the sensor achieves a quantum efficiency of above 80%. Radiation tests have shown that both the readout noise and dark current increase with total ionising dose and that the OBF can help to mitigate the increase in dark current. The measured electro-optical parameters and the preliminary ionising radiation results strongly support the use of the CIS221-X in soft x-ray applications.

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“…CIS221-X is a 4T pinned photodiode (PPD) CIS based on the readout architecture of Teledyne e2v's Capella CIS120. 11 The pixels are built on 35 μm thick, high-resistivity epitaxial silicon which has undergone BSI processing. The 2048 × 2048 pixel array is split into four equally sized regions: three variants of 40 μm pitch square pixels and one 10 μm pitch square pixel array.…”

Section: Cis221-xmentioning

confidence: 99%

Electro-optical characterization of a CMOS image sensor optimized for soft x-ray astronomy

Townsend-Rose,

Buggey,

Ivory

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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.CIS221-X is a prototype complementary metal-oxide-semiconductor (CMOS) image sensor, optimized for soft x-ray astronomy and developed for the proposed ESA Transient High Energy Sky and Early Universe Surveyor (THESEUS) mission. The sensor features 40 μm pitch square pixels built on a 35 μm thick, high-resistivity epitaxial silicon that is fully depleted by reverse substrate bias. Backside illumination processing has been used to achieve high x-ray quantum efficiency, and an optical light-blocking filter has been applied to mitigate the influence of stray light. A comprehensive electro-optical characterization of CIS221-X has been completed. The median readout noise is 3.3 e − RMS with 90% of pixels reporting a value <3.6 e − RMS. At −40 ° C, the dark current is 12.4 ± 0.06 e − / pixel / s. The pixel photo-response is linear to within 1% for 0.3 to 5 keV photons (82 to 1370 e − ) with <0.1 % image lag. Following per-pixel gain correction, an energy resolution of 130.2 ± 0.4 eV has been measured at 5898 eV. In the 0.3 to 1.8 keV energy range, CIS221-X achieves >80 % quantum efficiency. With the exception of dark current, these results either meet or outperform the requirements for the THESEUS mission, strongly supporting the consideration of CMOS technology for soft x-ray astronomy.

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Teledyne e2v sensors optimised for ground-based and space applications

Cited by 10 publications

References 0 publications

A detector characterization setup for testing performance under space environmental conditions

A detector characterization setup for testing performance under space environmental conditions

Characterization, quantum efficiency, and radiation hardness of a CMOS image sensor optimized for soft x-ray astronomy

Electro-optical characterization of a CMOS image sensor optimized for soft x-ray astronomy

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