CMOS sensors for the vertex detector of the future international linear collider

Y. Li (1) , Y. Degerli (1) , M. Besançon (1) , A. Besson (2) , G. Claus (2) , G. Deptuch (2) , W. Dulinski (2) , N. Fourches (1) , M. Goffe (2) , A. Himmi (2) , P. Lutz (1) , F. Orsini (1) , M. Szelezniak (2)

1 DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
2 DRS-IPHC - Département Recherches Subatomiques

Fast Monolithic Active Pixel Sensors (MAPS) are now being studied for the high-spatial resolution and high readout speed vertex detector which will be required for the future International Linear Collider (ILC). A 32×128 pixels prototype chip has been developed on the 0.25 μm CMOS TSMC digital process. Combined with in-pixel amplification, in-pixel correlated double sampling (CDS) operation is realized. An auto-zero discriminator is implemented at the end of each column. The power consumption of each column is about 430 μW (pixel+discriminator). The chip is optimized to operate with a readout speed of 20 μs/frame. Beam tests with high energy electrons show that detection efficiency is around 98%

Mots clés: ILC; Vertex detector; MAPS; Particle tracking; CDS; Discriminator; ADC

Domaines: Instrumentations et Détecteurs [physics.ins-det]

Y. Li, Y. Degerli, M. Besançon, A. Besson, G. Claus, et al.. CMOS sensors for the vertex detector of the future international linear collider. 10th Pisa Meeting on Advanced Detectors - Frontier Detectors for Frontier Physics, May 2006, La Biodola, Isola d'Elba, Italy. pp.300-304, ⟨10.1016/j.nima.2006.10.324⟩. ⟨in2p3-00144382⟩