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Fathi, Hassan, Afarideh, Hossein, Abbasi Davani, Fereydoun, Amirmazlaghani, Mina. (1404). A Theoretical examination of source back-scattering, self-absorption phenomena, and size evaluation in betavoltaic cells. نشریه مهندسی عمران امیرکبیر, 1(2), 146-161. doi: 10.22060/aest.2025.5790
Hassan Fathi; Hossein Afarideh; Fereydoun Abbasi Davani; Mina Amirmazlaghani. "A Theoretical examination of source back-scattering, self-absorption phenomena, and size evaluation in betavoltaic cells". نشریه مهندسی عمران امیرکبیر, 1, 2, 1404, 146-161. doi: 10.22060/aest.2025.5790
Fathi, Hassan, Afarideh, Hossein, Abbasi Davani, Fereydoun, Amirmazlaghani, Mina. (1404). 'A Theoretical examination of source back-scattering, self-absorption phenomena, and size evaluation in betavoltaic cells', نشریه مهندسی عمران امیرکبیر, 1(2), pp. 146-161. doi: 10.22060/aest.2025.5790
Fathi, Hassan, Afarideh, Hossein, Abbasi Davani, Fereydoun, Amirmazlaghani, Mina. A Theoretical examination of source back-scattering, self-absorption phenomena, and size evaluation in betavoltaic cells. نشریه مهندسی عمران امیرکبیر, 1404; 1(2): 146-161. doi: 10.22060/aest.2025.5790

A Theoretical examination of source back-scattering, self-absorption phenomena, and size evaluation in betavoltaic cells

Advances in Energy Sciences and Technologies
دوره 1، شماره 2، آذر 2025، صفحه 146-161    اصل مقاله (1.12 M)
شناسه دیجیتال (DOI): 10.22060/aest.2025.5790
نویسندگان
Hassan Fathi1؛ Hossein Afarideh* 1؛ Fereydoun Abbasi Davani2؛ Mina Amirmazlaghani3
1Department of Energy Engineering and Physics, Amirkabir University of Technology, No. 350, Hafez Ave, Valiasr Square, Tehran 15875-4413, Iran
2Radiation Application Department, Shahid Beheshti University, Shahid Shahriari Square, Evin, Tehran 1983969411, Iran
3Nano Electronics Lab (NEL), Shahid Rajaee Teacher Training University, Shahid Shabanlou St., Lavizan, Tehran 16785-163, Iran
چکیده
The effect of source backscattering and self-absorption on the basic parameters of a 147Pm2O3/Si planar betavoltaic devices is covered. Calculations show that self-absorption loss can reach up to 31.579% of the actual activity and overall efficiency can be reduced from 4.361% to 4.274%. If self-absorption and source backscattering are considered together it is observed that the source backscattering factor compensates to some extent the reduction of the actual activity induced by the self-absorption and ultimately, overall conversion efficiency can reach up to 4.352%. Also, as a case study lower bounds on the size of planar and spherical betavoltaic cells are reported. Further, the effect of parameters such as nominal source curie content, the total number of fuel atoms in the division’s volume, total power released by the source, the maximum energy of beta particles, and semiconductor density in the size of the nuclear battery was investigated.
کلیدواژه‌ها
Betavoltaic cell؛ Self-absorption؛ Backscattering effect؛ Size limitations؛ 147Pm2O3/Si
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