Study of the charge sharing in silicon pixel detector by means of heavy ionizing particles interacting with a Medipix2 device
- NázevTitle
- Study of the charge sharing in silicon pixel detector by means of heavy ionizing particles interacting with a Medipix2 deviceStudy of the charge sharing in silicon pixel detector by means of heavy ionizing particles interacting with a Medipix2 device
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- J. Bouchami, A. Gutierrez, A. Houdayer, J. Jakůbek, C. Lebel, C. Leroy, J. Macana, J.P. Martin, M. Platkevič, S. Pospíšil, C. Teyssier
- Klíčová slovaKeywords
- Medipix, Charge sharing, Heavy ionizing particle, TRACK
- DOIDOI
- 10.1016/j.nima.2010.06.141
- Časopis / citaceJournal / citation
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 633, S117-S120 (2011) · ISSN 0168-9002
- RokYear
- 2011
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Využití radionuklidů a ionizujícího zářeníApplication of radionuclides and ionising radiation
- CitovánoCited by
- 22 (OpenAlex)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The charge sharing effect has been investigated in a 300 mu m thick silicon pixel detector bump-bonded to a Medipix2 readout chip and exposed to heavy ionizing particles of various energies, namely protons and alpha-particles. The lateral spread of the charge carriers from the interaction of a heavy ionizing particle in the silicon detector causes a sharing of the charge among adjacent pixels, giving a signal in clusters of multiple pixels of the Medipix2 device. A model of charge sharing, including the plasma effect on top of diffusion and drift processes has been compared to the measured lateral spread of the charge for bias voltage values beyond the full depletion voltage. Results of the measurements of the cluster size as a function of the energy and incidence angle of incoming heavy ionizing particles are also reported and compared with the model.
The charge sharing effect has been investigated in a 300 mu m thick silicon pixel detector bump-bonded to a Medipix2 readout chip and exposed to heavy ionizing particles of various energies, namely protons and alpha-particles. The lateral spread of the charge carriers from the interaction of a heavy ionizing particle in the silicon detector causes a sharing of the charge among adjacent pixels, giving a signal in clusters of multiple pixels of the Medipix2 device. A model of charge sharing, including the plasma effect on top of diffusion and drift processes has been compared to the measured lateral spread of the charge for bias voltage values beyond the full depletion voltage. Results of the measurements of the cluster size as a function of the energy and incidence angle of incoming heavy ionizing particles are also reported and compared with the model.