InfraRed detectors In Space (IRIS 2026) Workshop

Session

Data Acquisition / Signal Estimation

11 Mar 2026, 09:30

Room 216 (CNR Area Territoriale della Ricerca Bologna)

Conveners

Data Acquisition / Signal Estimation

• Eduardo Medinaceli
• Bogna Kubik

Description

Different approaches to data acquisition and signal estimation strategies are compared, with particular emphasis on innovative techniques.

42. New acquisition techniques in SPHEREx

Phil Korngut

11/03/2026, 09:30

The SPHEREx studies of the extragalactic background light are designed to probe anisotropies on scales between 5 and 20 arcminutes. They are therefore susceptible to any noise with power on those scales. Traditional raster scan H2RG readout schemes place power from 1/f drifts directly in this spatial signal band given the SPHEREx plate scale. We therefore have developed an alternate readout...

38. Euclid's NISP signal estimator

Fabrizio Cogato (Istituto Nazionale di Astrofisica (INAF))

11/03/2026, 09:55

The Euclid mission relies on the Near-Infrared Spectrometer and Photometer (NISP) to deliver high-precision photometric and spectroscopic measurements from the Sun–Earth L2 point. NISP employs a mosaic of 16 H2RG detectors and processes data onboard through a dedicated hardware–software architecture designed to satisfy stringent constraints on computational resources, telemetry bandwidth, and...

44. H1RG readout procedures for MAJIS, the VIS-IR imaging spectrometer of JUICE: description and impact on instrument performance

François Poulet

11/03/2026, 10:20

This presentation addresses the end-to-end signal detection chain, from photon collection to calibrated science data, with emphasis on detector readout architectures and on-board processing strategies as used by the MAJIS instrument onboard ESA’s JUICE. We will illustrate how extreme dynamic range, low photon flux regimes, and radiation-induced transients drive detector operation choices....

59. JWST NIRSpec’s Cosmic Ray Experience at L2

Bernard Rauscher

11/03/2026, 11:15

We characterize cosmic ray interactions in blanked-off JWST NIRSpec "dark" exposures. In its Sun/Earth-Moon L2 halo orbit, JWST encounters energetic ions that penetrate NIRSpec's radiation shielding. The shielded cosmic ray hit rate decreased from approximately 4.3 to 2.3 ions/cm^2/s during the first three years of operation. A typical hit affects about 7.1 pixels necessitating mitigation...

60. Snowballs detection in Euclid’s NISP detectors

Louis Gabarra

11/03/2026, 11:40

Since the launch in July 2023, Euclid operations were characterized by an intense solar activity. Solar energetic particles (SEP), hitting the sixteen H2RG detectors of the Near Infrared Photometer and Spectrometer (NISP) instrument, contribute to the scientific signal noise. In the most extreme cases, making NISP data invalid for scientific purposes. In this talk, we will present a...

41. ARRAKHIS

43. New acquisition techniques in NEO Surveyor

25 min

40. New advanced readout modes in JWST - E. Bergeron

25 min

37. Wide Field Images Combination: PyImom - C. Hirata (TBC)