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InGaP electron spectrometer for high temperature environments
journal contribution
posted on 2023-06-09, 18:32 authored by Silvia Butera, Grammatiki LioliouGrammatiki Lioliou, Shifan Zhao, Michael WhitakerMichael Whitaker, A B Krysa, Anna BarnettAnna BarnettIn this work, a 200 µm diameter InGaP (GaInP) p+-i-n+ mesa photodiode was studied across the temperature range 100?°C to 20?°C for the development of a temperature-tolerant electron spectrometer. The depletion layer thickness of the InGaP device was 5 µm. The performance of the InGaP detector was analysed under dark conditions and then under the illumination of a 183 MBq 63Ni radioisotope beta particle source. The InGaP photodiode was connected to a custom-made low-noise charge-sensitive preamplifier to realise a particle counting electron spectrometer. Beta spectra were collected at temperatures up to 100?°C with the InGaP device reverse biased at 5?V. The spectrum accumulated at 20?°C was compared with the spectrum predicted using Monte Carlo simulations; good agreement was found between the predicted and experimental spectra. The work is of importance for the development of electron spectrometers that can be used for planetary and space science missions to environments of high temperature or extreme radiation (e.g. Mercury, Jupiter’s moon Europa, near-Sun comets), as well as terrestrial applications.
Funding
Photon counting X-ray and gamma-ray spectroscopy with Al0.52In0.48P detectors; G2140; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/P021271/1
STFC; ST/R001804/1
History
Publication status
- Published
File Version
- Published version
Journal
Scientific ReportsISSN
2045-2322Publisher
Nature ResearchExternal DOI
Volume
9Page range
11096 1-10Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Space Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-08-02First Open Access (FOA) Date
2019-08-02First Compliant Deposit (FCD) Date
2019-08-02Usage metrics
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