Optimization of electric field distribution by free carrier injection in silicon detectors operated at low temperatures

Verbitskaya, E. et al. (2002) Optimization of electric field distribution by free carrier injection in silicon detectors operated at low temperatures. IEEE Transactions on Nuclear Science, 49(1), 258 -263. (doi: 10.1109/TNS.2002.998650)

Abstract

We present a study of the modeling of the electric field distribution, which is controlled by injection and trapping of nonequilibrium carriers, in Si detectors irradiated by high neutron fluences. An analytical calculation of the electric field distribution in detectors irradiated by neutrons up to fluences of 1 . 10(14) to 5 . 10(15) cm(-2) shows the possibility of reducing the full depletion voltage at low temperatures via hole injection. For this calculation, we use the detector operating parameters and equivalent neutron fluences expected for Large Hadron Collider experiments. The results of the calculation are in good qualitative agreement with published experimental data, lending strong support for the model and for an earlier proposal of electric field manipulation by free carrier injection.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: O'Shea, Professor Val and Smith, Professor Kenway and Li, Dr ZhongQiang and Bell, Dr William
• Authors: Verbitskaya, E., Abreu, M., Bartsch, V., Bell, W., Berglund, P., Bol, J., De Boer, W., Borer, K., Buontempo, S., Casagrande, L., Chapuy, S., Cindro, V., D'Ambrosio, N., Da Via, C., Devine, S.R.H., Dezillie, B., Dierlamn, A., Dimcovski, Z., Eremin, V., Esposito, A., Granata, V., Grigoriev, E., Hauler, F., Janos, S., Jungermann, L., Konorov, I., Li, Z., Lourenco, C., Mikuz, M., Niinikoski, T.O., O'Shea, V., Pagano, S., Palmieri, V.G., Paul, S., Mendes, P.R., Ruggiero, G., Schmitt, L., Smith, K., Sousa, P., and Zavrtanik, M.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: IEEE Transactions on Nuclear Science
• ISSN: 0018-9499