Details

Autor(en) / Beteiligte

• Chiochia, V.
• Swartz, M.
• Bortoletto, D.
• Cremaldi, L.
• Cucciarelli, S.
• Dorokhov, A.
• Konecki, M.
• Prokofiev, K.
• Regenfus, C.
• Rohe, T.
• Sanders, D.A.
• Son, S.
• Speer, T.

Titel

Simulation of the CMS prototype silicon pixel sensors and comparison with test beam measurements

Ist Teil von

• IEEE Symposium Conference Record Nuclear Science 2004, 2004, Vol.2, p.1245-1250 Vol. 2

Ort / Verlag

IEEE

Erscheinungsjahr

2004

Link zum Volltext

• Volltext

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• Charge collection measurements performed on heavily irradiated p-spray dofz pixel sensors with a grazing angle hadron beam provide a sensitive determination of the electric field within the detectors. The data are compared with a complete charge transport simulation of the sensor which includes signal trapping and charge induction effects. A linearly varying electric field based upon the standard picture of a constant type-inverted effective doping density is inconsistent with the data. A two-trap double junction model implemented in ISE TCAD software can be tuned to produce a doubly-peaked electric field which describes the data reasonably well at two different fluences. The modeled field differs somewhat from previous determinations based upon the transient current technique. The model can also account for the level of signal trapping observed in the data.