Characterisation of a CeBr<sub>3</sub>(LB) detector for space application

Giovanni, A. Di; Manenti, L.; AlKhouri, Fatema; Alkindi, Lolowa; AlMannaei, Aisha; Qasim, Ahlam Al; Benabderrahmane, M. L.; Bruno, G.; Conicella, V.; Fawwaz, O.; Marpu, Prashanth Reddy; Panicker, Philip K.; Pittori, C.; Roberts, M. S. E.; Vu, Thu; Arneodo, F.

doi:10.1088/1748-0221/14/09/p09017

Cited by 13 publications

(5 citation statements)

References 33 publications

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“…2, center). This inorganic scintillator exhibits a light yield of 60 photons per keV, a scintillation decay time of 18 ns, a density of 5.18 g.cm −3 and a total absorption efficiency at 364 keV of 27% for a 10×10×1 cm 3 crystal block [17]. The mechanical frame is sealed with a 1.5 mm thick output glass window, which is coupled to the SiPMs array with an optical grease (BC-630, refractive index of 1.46, Saint-Gobain).…”

Section: A the Scintillator-photodetector Systemmentioning

confidence: 99%

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

Bossis,

Verdier,

Trigila

et al. 2024

IEEE Trans. Radiat. Plasma Med. Sci.

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Molecular radiotherapy is a treatment modality that requires personalized dosimetry for efficient treatment and reduced toxicity. Current clinical imaging systems and miniaturized gamma-cameras lack the necessary features for this task. In this paper, we present the design and optimization of a mobile gamma-camera with a 10×10 cm 2 field of view tailored for quantitative imaging during 131 I therapy of thyroid diseases. The camera uses a monolithic 10×10×1 cm 3 CeBr3 scintillator coupled to a 16×16 SiPMs array and commercial electronics. It exhibits high imaging performance with an intrinsic spatial resolution of 1.15 mm FWHM, an energy resolution of 8% FWHM at 356 keV and negligible deadtime up to 150 kcps. Images are reconstructed in real time using a convolutional neural network. The manufacturing method of tungsten collimators and shielding was optimized using laser 3D printing to achieve an effective density of 97% that of bulk tungsten. Their geometry was adjusted with Monte-Carlo simulations in order to reduce septal penetration and scattering and optimize the signal-to-noise ratio at short times after treatment administration. Two highenergy parallel-hole collimators with high sensitivity or very high spatial resolution were designed for treatment planning and posttreatment control. The fully operational gamma-camera will soon be clinically assessed.

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Section: A the Scintillator-photodetector Systemmentioning

confidence: 99%

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

Bossis,

Verdier,

Trigila

et al. 2024

IEEE Trans. Radiat. Plasma Med. Sci.

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“…The payload's temperature data during orbit is important to correct for detector gain drift [21], and for adjusting the operations duty cycle in flight to avoid overheating. As can be seen in the insets of figure 13, which represent the temperature recorded while the payload was operational, during a single orbit the temperature rises significantly when the payload is operating.…”

Section: Instrument Healthmentioning

confidence: 99%

“…A prototype of RAAD was built and tested at NYUAD, providing proof of concept. Details on the prototype can be found in [21]. Details on the CubeSat's bus and subsystems can be found in [22].…”

Section: Introductionmentioning

confidence: 99%

RAAD: LIGHT-1 CubeSat's payload for the detection of terrestrial gamma-ray flashes

Di Giovanni,

Arneodo,

Al Qasim

et al. 2023

J. Inst.

Self Cite

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The Rapid Acquisition Atmospheric Detector (RAAD), onboard the LIGHT-1 3U CubeSat, detects photons between hard X-rays and soft gamma-rays, in order to identify and characterize Terrestrial Gamma Ray Flashes (TGFs). Three detector configurations are tested, making use of Cerium Bromide and Lanthanum BromoChloride scintillating crystals coupled to photomultiplier tubes or Multi-Pixel Photon Counters, in order to identify the optimal combination for TGF detection. High timing resolution, a short trigger window, and the short decay time of its electronics allow RAAD to perform accurate measurements of prompt, transient events. Here, we describe the overview of the detection concept, the development of the front-end acquisition electronics, as well as the ground testing and simulation that the payload underwent prior to its launch on December 21st, 2021. We further present an analysis of the detector's in-orbit system behavior and some preliminary results.

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“…We propose to use a new generation of CeBr 3 scintillating crystals (Sect. 3.3.1) which have been studied to assess their suitability as spectrometer modules for space missions [70][71][72][73][74][75].…”

Section: Overviewmentioning

confidence: 99%

Measuring the Cosmic X-ray Background accurately

Walter

Produit

et al. 2022

Preprint

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Synthesis models of the diffuse Cosmic X-ray Background (CXB) suggest that it can be resolved into discrete sources, primarily Active Galactic Nuclei (AGNs). Measuring the CXB accurately offers a unique probe to study the AGN population in the nearby Universe. Current hard X-ray instruments suffer from time-dependent background and cross-calibration issues. As a result, their measurements of the CXB normalization has an uncertainty of the order of ~15%. In this paper, we present the concept and simulated performances of a CXB detector, which could be operated on different platforms. With a 16-U CubeSat mission running for more than two years in space, such a detector could measure the CXB normalization with ~1% uncertainty.

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Characterisation of a CeBr₃(LB) detector for space application

Cited by 13 publications

References 33 publications

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

RAAD: LIGHT-1 CubeSat's payload for the detection of terrestrial gamma-ray flashes

Measuring the Cosmic X-ray Background accurately

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Characterisation of a CeBr3(LB) detector for space application

Cited by 13 publications

References 33 publications

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

A High-Resolution Portable Gamma-Camera for Estimation of Absorbed Dose in Molecular Radiotherapy

RAAD: LIGHT-1 CubeSat's payload for the detection of terrestrial gamma-ray flashes

Measuring the Cosmic X-ray Background accurately

Contact Info

Product

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Characterisation of a CeBr₃(LB) detector for space application