| Titre : | Computer-based study of secondary emission cell (SEC) efficiency compared to that of a vacuum-type direct collection cell (2008) |
| Auteurs : | Romer, M., Auteur ; Miley, G.H., Auteur ; Nie Luo, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on energy conversion (Vol. 23 N°1, Mars 2008) |
| Article en page(s) : | pp. 331 - 341 |
| Note générale : | Energy conversion |
| Langues : | Anglais |
| Tags : | Computer aided analysis ; energy conservation ; insulators ; nuclear power ; power engineering computing ; secondary cells ; emission |
| Résumé : | The concept of directly collecting secondary electrons created by beta emission through an electrical insulator has been proposed as an attractive low-voltage nuclear battery termed a secondary emission cell (SEC). In this paper, a MATLAB computer simulation of an SEC is conducted using Mott scattering, the Penfold-Katz slowing approximation, Bethe's ionization loss expression, and energy and momentum conservation. The goal of the simulation is to compare the efficiency of an SEC to that of a vacuum direct collection cell. It is found that the SEC efficiency is typically les1%. Energy losses in the insulator prevent it from having an efficiency advantage over a vacuum direct collection cell which offers higher efficiencies, especially at high voltages. However, operational simplicity and ease of construction still make the SEC attractive for some applications. |
| En ligne : | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4453998&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A4453975%29%26pageNumber%3D2 |
