PromOptica - Electromagnetic radiation sensors

Friday 22 Apr 2022, 09:00 → 15:00 Europe/Brussels

Meridian room at the Royal Observatory of Belgium

 

 

Public seminar Electromagnetic Radiation Sensors April 22, 2022

 

State of the art of electromagnetic field detection and practical applications

PromOptica, in collaboration with the STCE, invites you to three conferences that will present the history and state of the art of sensors designed for the detection of electromagnetic field, as well as some application for space instrumentation.

• Dr. Vermeiren (CAELESTE) will give a talk on the the history and the state of the art of the photon and particle imaging and (hyper-)spectral sensors 
• Dr. Argyriou (KUL) will introduce the infrared detector calibration of the Mid-Infrared Instrument (MIRI) on-board the James Webb Space Telescope (JWST).
• Dr. Schühle (Max Planck Institute for Solar System Research, MPS) will present a talk about hydrogen Lyman-Alpha detectors using image intensifiers (for EUI and METIS instruments on board Solar Orbiter).

The conferences will be followed, after a lunch break, by a visit of some laboratories at Spacepole site.

Where to find the Meridian Room?

 

 

Local Organisation is done by the Solar-Terrestrial Centre of Excellence

 

Promoptica_part1_audio.m4a

Promoptica_part1_video.mp4

Promoptica_part2_audio.m4a

Promoptica_part2_video.mp4

09:30 → 09:45 Welcome

09:45 → 10:30 History and the state-of-the-art of the detection

We will make a fast sweep over all different electro-magnetic wavelengths ranges and high energetic particles.

Historically people have been lucky that the mainstream material (silicon) could be used for the detection of visible light and that the CCD technology was capable of making U/VLSI circuitry long before the maturity of equivalent CMOS circuits.

Nowadays CMOS has overtaken the CCD technology due to its availability and uniformity.

Not all wavelengths can be detected easily with Silicon; sometimes trade-off have to be accepted for a good detection or additional detection materials need to be integrated.

Also the environment, where the sensors are used will influence the design and the performance.

Speaker: Dr Vermeiren (CAELESTE)

Caeleste_JanVermeiren.pdf

10:30 → 11:15 Calibration of MIRI on-board JWST

The James Webb Space Telescope (JWST) is humanity's latest and greatest attempt to study the universe in the near- and mid-infrared. So far commissioning of JWST has shown much promise, with the near-infrared instruments undergoing their planned activities already, whilst the mid-infrared instrument MIRI is still cooling down to its final temperature of 6 degrees Kelvin. In this talk, I will focus on the calibration of the JWST/MIRI instrument. I will show how our understanding of the Si:As IBC detectors has improved drastically over the last 5 years, and show how existing challenges still impact the absolute flux calibration of MIRI measurements. I will also discuss how a re-design of the MIRI detectors and focal plane electronics could boost the performance of the next generation mid-infrared instrument.

Speaker: Dr Argyriou (KULeuven)

JWST_MIRI_YannisArgyriou.pdf

11:15 → 12:00 Hydrogen Lyman-Alpha detectors using image intensifiers (EUI + METIS – Solar Orbiter)

The Solar Orbiter scientific instrumentation has six remote sensing telescopes with ten imaging detector systems (i. e., cameras). With one exception, they are using quite newly developed active pixel sensors for detecting visible and extreme ultraviolet radiation. Two instruments, however, are made for detecting hydrogen Lyman-Alpha radiation and these detectors are using multi-channel plate intensifiers, combined with active pixel sensors.
I will describe two detector systems for Lyman-Alpha cameras that have been developed for the Extreme-Ultraviolet Imager (EUI) and for the coronagraph Metis which use a common design with image intensifiers. I will discuss the design specifications and the imaging performance characteristics measured on ground and in space.

Speaker: Dr Schühle (MPS)

Lyman_UdoSchuhle.pdf

12:00 → 13:00 Lunch buffet

13:00 → 15:00 Visit B.RCLab, DeMeLab and BRAMS

Visit of the B.RCLab (BIRA-IASB) and DeMeLab (ROB) laboratories specialized in detector characterization and radiometry.
Presentation of the BRAMS project at Spacepole site.

BRAMS_PromOptica_220422.pdf