En poursuivant votre navigation, vous acceptez l'utilisation de cookies destinés à améliorer la performance de ce site et à vous proposer des services et contenus personnalisés.


The SIRIUS installation


The SIRIUS facility, at the Irradiated Solids Laboratory (UMR 7642 CEA-CNRS-Ecole polytechnique), is an irradiation platform with high energy electrons consisting of an electron accelerator and two irradiation stations (having the possibility of carrying out irradiations at high currents and at low temperatures). The SIRIUS facility is open to a large community of users nationally and internationally and is part of the national network of accelerators for the study of irradiated materials EMIR&A.
For any additional information, Contact us


Accélérateur Pelletron fabriqué par la société NEC.    Énergie des électrons: 150 keV – 2.5 MeV  Courant (10 nA – 50 µA)  Différentes cellules d'irradiation (voir ci-dessous)  Mesure en ligne (voir ci-dessous)  Possibilité de contrôler la température (voir ci-dessous)

Pelletron accelerator by NEC.

Electrons Enerigies: 150 keV – 2.5 MeV
Current (10 nA – 50 µA)

Different irradiation cells (see below)
Online measurement (see below)
Possibility to control the temperature (see below)


Electron beam current is measured using pico-ammeters at the output of the accelerator and along the irradiation line. The electrical charge passing through the sample section is, in turn, measured via a digital current integrator.


Current beam: < 40 µA
300 K < T < 600 K
Standard sample: Ø 28 mm
Atmosphere (air, hélium, argon)
Water-cooled sample holder
Optical aperture for in situ UV-VIS absorption



Current beam :  ~ few µA
T = 300 K
Atmosphere (Air, Helium, Argon)
Translation along one axis (12 cm)
Height: 2 cm



Current beam : < 50 µA
100 K < T < 300 K
Sample : 180x130 mm2
AM0 solar simulator for solar cells
Electrical measurements 


Current beam : < 20 µA
T = 20 K
Standard Sample : Ø 8 mm
Cooling power > 25 W
In situ electrical measurements



Current beam : < 5 µA
4 K < T < 300 K
Sample : Ø 5 mm
In situ resistivity and Hall effect measuraments 
On-line EPR under development



T = 300 K
Water-cooled sample holder
Time-resolved photoluminecence 
Raman spectroscopy  post-irradiation
CW X band EPR post-irradiation


Publications récentes

C. Weiss et al. Electron and proton irradiation effect on the minority carrier lifetime in SiC passivated p-doped Ge wafers for space photovoltaics, Solar Energy Materials and Solar Cells, 209, 110430, 2020. 
N. Ollier et al. Relaxation study of pre-densified silica glasses under 2.5MeV electron irradiation. Scientific Reports 9, 1227, 2019.
M.-N. de Noirfontaine et al. An X-ray powder diffraction study of damage produced in Ca(OH)2 and Mg(OH)2 by electron irradiation using the 2.5 MeV SIRIUS accelerator, Journal of Nuclear Materials, 509 78-93, 2018.
K. Cho et. Using controlled disorder to probe the interplay between charge order and superconductivity in NbSe2  
Nature Communications 9, 2796, 2018. 

H. Deng et al. High-temperature quantum anomalous Hall regime in a MnBi2Te4/Bi2Te3 superlattice, Nature Physics (2020).

Beamline Manager: Antonino Alessi
Technical Manager: Olivier Cavani
Beamline Scientist : Romain Grasset
Support Developments: Audrey Courpron

For any additional information, Contact us