4H-SiC alpha detectors were fabricated with a 21-μm thick depletion depth and were packaged into a stainless-steel casing with a mineral insulation cable and a standard BNC connector. The packaged detectors had a resolution of 0.624% FWHM at 5.486 MeV prior to salt immersion. The detectors were then immersed in a LiCl–KCl–UCl3 molten salt at 500 °C, from which a thin layer of depleted uranium was electrodeposited onto the detectors. Alpha particle emission spectra were collected from the electrodeposited source. The energy resolution of the surviving detector was 2.29% FWHM at 4.198 MeV and was sufficient to separate the 234U from 238U alpha emissions (577 keV difference). The 234U/238U activity ratio and the isotopic concentrations of 234U and 238U were determined and are representative of the uranium source used in the electrodeposition.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Laidler JJ, Battles JE, Miller WE, Ackerman JP, Carls EL (1997) Development of pyroprocessing technology. Prog Nucl Energy 31(12):131–140
Aryaeinejad R et al (2006) Safeguards and non-proliferation issues as related to advanced fuel cycle and advanced fast reactor development with processing of reactor fuel. In: Nuclear Science Symposium Conference Record, vol 1. IEEE
Tomczuk Zygmunt, Ackerman John P, Wolson Raymond D, Miller William E (1992) Uranium transport to solid electrodes in pyrochemical reprocessing of nuclear fuel. J Electrochem Soc 139(12):3523–3528
Ackerman JP (1991) Chemical basis for pyrochemical reprocessing of nuclear fuel. Ind Eng Chem Res 30:141–145
Lally AE, Glover KM (1984) Source preparation in alpha spectrometry. Nucl Instrum Methods Phys Res 223(2–3):259–265
Braunstein J, Mamantov G, Smith GP (2013) Advances in molten salt chemistry. Springer, Berlin
Stika M, Padilla S, Jarrell J, Blue T, Cao LR, Simpson M (2018) Thin-layer electrodeposition of uranium metal from molten LiCl–KCl. J Electrochem Soc 165(3):D135–D141
Jarrell J (2018) Fabrication and characterization of a molten salt application silicon carbide alpha detector. Dissertation. The Ohio State University
Knoll GF (2000) Radiation detection, 3rd edn. Wiley, Hoboken
McKee DW, Chatterji D (1976) Corrosion of silicon carbide in gases and alkaline melts. J Am Ceram Soc 59:441–444
Zat’ko B, Dubecký F, Šagátová A, Sedlačová K, Ryć L (2015) High resolution alpha particle detectors based on 4H-SiC epitaxial layer. J Instrum 10:C04009
Jarrell Joshua, Stika Milan, Simpson Michael, Blue TE, Cao LR (2018) 4H-SiC alpha spectrometry for nuclear forensics with electrodeposited sources. J Radioanal Nucl Chem 318:667–672. https://doi.org/10.1007/s10967-018-6137-1
Chukreev FE, Makarenko VE, Martin MJ (2002) Nuclear data sheets for A = 238. Nucl Data Sheets 97(1):129–240
Browne E, Tuli JK (2007) Nuclear data sheets for A = 234. Nucl Data Sheets 108(3):681–772
Schmorak MR (1983) Nuclear data sheets for A = 231, 235, 239. Nucl Data Sheets 40(1):1–147
Stika M, Padilla S, Jarrell J, Blue T, Cao LR, Simpson M (2017) Thin-layer electrodeposition of thorium metal from molten LiCl–KCl. J Electrochem Soc 164(8):H5078–H5085
This research is being performed using funding received from the DOE Office of Nuclear Energy’s Nuclear Energy University Program (Grant No: 15-8074). We acknowledge the staff at OSU NanoTech West for supporting SiC device fabrication.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Taylor, N.R., Alnajjar, N., Jarrell, J. et al. Isotopic concentration of uranium from alpha spectrum of electrodeposited source on 4H-SiC detector at 500 °C. J Radioanal Nucl Chem 320, 441–449 (2019). https://doi.org/10.1007/s10967-019-06492-y
- Alpha spectroscopy
- Isotopic concentration
- Depleted uranium