Tutorial on Integrated Photonics and its potential in harsh environments - Dr. Thijs van Leest
The ability of integrating optical functionalities as light generation, manipulation and detection onto a chip in building blocks, i.e. integrated photonics, allows the realization of a wide variety of optical circuits on a generic manufacturing platforms similar to that of electronic ICs. Enabling small footprint solutions is very attractive for applications in harsh environments. In this presentation examples and approaches are discussed towards the realization of these applications and whether a generic approach, as applied to photonic building blocks, could be extended to advance realization of integrated photonic solutions in harsh environment.
Tutorial on Radiation Effects in CMOS Image Sensors: an Overview - Pr. Vincent Goiffon
Nowadays, CMOS Image Sensors (CIS), also called Active Pixel Sensors (APS), represent the most popular solid-state imager technology as illustrated by its ubiquity in mass consumer smartphones and cameras. In particular, CISs are used in various imaging applications in harsh radiation environments (e.g. space remote sensing, nuclear and scientific instrumentation and medical imaging). During this lecture, the particularities of the CIS technology will be briefly presented. In a second part, an overview of the most important radiation effects on these imagers will be discussed. In particular, the physical mechanisms at the origin of the most important Total Ionizing Dose (TID) and Displacement Damage (DD) effects in CISs will be detailed including: charge transfer degradation, dark current increase, hot pixel creation, and random telegraph signals (RTS).
Tutorial on Radiation effects on optical fibers and optical fiber sensors - Dr. Adriana Morana
Optical fibers (OFs) and Optical Fiber Sensors (OFSs) are more considered for implementation in harsh environments, combining extreme temperatures and radiations, from space applications to nuclear power plants. Even if such technologies present much higher radiation tolerance levels than most of micro- or opto-electronic counterparts, ionizing and non ionizing radiations could induce defect generation and/or structural changes, by degrading the OF and OFS performances. For particular cases, such degradation can even be used for radiation detection. In this tutorial, we will overview the main induced radiation effects on OFs, the working principles and the radiation effects of the most common OFSs.
Invited Talk- Radiation Testing of Photonic Technologies - J. Kuhnhenn, FINT
The presentation focuses on practical aspects of radiation testing. After introduction of the basic principles and effects some examples will be discussed to demonstrate potential pitfalls. Guidelines and standards will be presented and critically reviewed. Easily overlooked influences will be discussed and shown how they could impact the relevance of the results obtained
P1: Temperature Dependence of Radiation Induced Attenuation of Aluminosilicate Optical Fibers (C. Campanella, Université de Saint-Etienne)------
P2: Temperature Dependence of Low-Dose Radiation-Induced Attenuation of Germanium-Doped Optical Fiber at InfraRed Wavelengths (A. Morana, Université de Saint-Etienne)------
P3: Impact of temperature and high power on the infrared radiation response of germanosilicate commercial optical fibers (Martin Roche, Université de Saint-Etienne & Airbus Defence and Space) ------
P4: Toward combined visible, infrared and X-ray imaging (P-F. Rüedi, CSEM) ------
P5: Properties of Emitted Radiation-Induced Luminescence of Doped Sol-gel Silica Glass under Electron Irradiation (Daniel Söderström, University of Jyväskyla) ------
P6: Radiation and temperature combined effects on Rare-Earth doped fiber amplifiers (Marine Aubry, CNES, iXblue, Université de Saint-Etienne) ------
P7:Visible to Infrared Radiation-Induced Attenuation in Ultra-Low Loss Pure-Silica-Core Optical Fibers (Sylvain Girard, Université de Saint-Etienne)
Invited Talk - Image Sensors for Space Applications - C. Virmontois, CNES
Image sensors are everywhere in space, these detectors are our eyes where human has not yet been go or where we can’t go due to harsh environment. This lecture proposes to present the numerous missions where image sensor are used. It focuses on visible and infrared sensors but also UV, X and Gamma-Rays, thermal infrared and terahertz detectors.
Invited Talk- The RADNEXT facility and research network by Matteo Cecchetto (CERN)
RADNEXT is an EU-funded project, coordinated by CERN, and involving a very broad range of facilities, research centres and companies with the joint purpose of enhancing accessibility to irradiation facilities for electronics testing across Europe. During this talk, the RADNEXT research objectives will be outlined and the irradiation opportunities will be presented, the latter being of special interest for possible future RADNEXT beam time users in the RADOPT community.
Session: Silicon Photonics, Optical Systems & Materials
Youcef Ouerdane (Univ. St-Etienne, France)
10:00 - 10:20 (20min)
Integrated silicon photonics in radiation environments
I. Reghioua (CEA LETI, France)
10:20 - 10:40 (20min)
On line measurement in research nuclear reactor of radiation induced attenuation and refractive index change on optical bulk glasses for confocal chromatic sensor
M. Agoyan (CEA DEN, France)
10:40 - 11:00 (20min)
Influence of gamma-rays exposure on the optical properties of hybrid titania-silica films doped with Rhodamine 6G prepared via sol-gel process