Absolute calibration up to 20 MeV of an online readout CMOS system suitable to detect high-power lasers accelerated protons

K Burdonov; R Lelièvre; P Forestier-Colleoni; T Ceccotti; M Cuciuc; L Lancia; W Yao; J Fuchs

doi:10.1063/5.0150373

Absolute calibration up to 20 MeV of an online readout CMOS system suitable to detect high-power lasers accelerated protons

Rev Sci Instrum. 2023 Aug 1;94(8):083303. doi: 10.1063/5.0150373.

Authors

K Burdonov^{1

2

3

4}, R Lelièvre¹, P Forestier-Colleoni⁵, T Ceccotti⁵, M Cuciuc⁶, L Lancia¹, W Yao^{1

2}, J Fuchs¹

Affiliations

¹ LULI - CNRS, CEA, Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128 Palaiseau Cedex, France.
² Sorbonne Université, Observatoire de Paris, Université PSL, CNRS, LERMA, F-75005 Paris, France.
³ IAP, Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia.
⁴ JIHT, Russian Academy of Sciences, 125412 Moscow, Russia.
⁵ Université Paris-Saclay, CEA, CNRS, LIDYL, 91191 Gif-sur-Yvette, France.
⁶ "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Bucharest-Magurele, Romania.

PMID: 38065134
DOI: 10.1063/5.0150373

Abstract

We present the design and absolute calibration of a charged particle online readout CMOS system tailored for high-power laser experiments. This system equips a Thomson parabola spectrometer, which is used at the Apollon petawatt scale laser facility to measure the spectra of protons produced by high-intensity laser-target interactions. The RadEye1 CMOS matrices array detectors are paired with a custom triggering system for image grabbing. This allows us to register the proton and ion signals remotely. The repetition rate is presently 1 shot/min, but the frame grabbing enables the system to be compatible with modern high-power lasers running, e.g., at 1 Hz. We detail here the implementation, in the harsh electromagnetic environment of such interactions, of the system, and its absolute calibration, which was performed for proton energies from 4 to 20 MeV.