Design of the OBELIX monolithic CMOS pixel sensor for an upgrade of the Belle II vertex detector

The Belle II collaboration has initiated a program to upgrade its detector in order to address the challenges set by the increase of the SuperKEKB collider luminosity, targeting 6×10

^{35}

cm

^{2}

s

^{-1}

. A monolithic CMOS pixel sensor named OBELIX (Optimized BELle II pIXel) is proposed to equip 5 detection layers upgrading the current vertex detector. Based on the existing TJ-Monopix2, OBELIX is currently designed in 180 nm CMOS process.

Digital electronic circuits
Electronic detector readout concepts (solid-state)
Front-end electronics for detector readout
Radiation-hard electronics
semiconductor detector: pixel
semiconductor detector: design
BELLE
vertex detector: upgrade

References(13)

Figures(0)

[1]

SuperKEKB Collider

SuperKEKB

Collaboration

•

Kazunori Akai
(
- KEK, Tsukuba and
- Sokendai, Kanagawa
)

et al.

- Nucl.Instrum.Meth.A 907 (2018) 188-199
•
e-Print:
- 1809.01958
•
DOI:
- 10.1016/j.nima.2018.08.017

[2]

Belle II at the Start of Data Taking

Thomas Kuhr
(
- Munich, Tech. U., Universe
)

- EPJ Web Conf. 214 (2019) 09004
•
DOI:
- 10.1051/epjconf/201921409004

[3]

Initial requirement for an upgraded vxd in belle 2, BELLE II Technical Note, BELLE2-NOTE-TE--011

L. Andricek et al.

[4]

A process modification for CMOS monolithic active pixel sensors for enhanced depletion, timing performance and radiation tolerance

et al.

- Nucl.Instrum.Meth.A 871 (2017) 90-96
•
DOI:
- 10.1016/j.nima.2017.07.046

[5]

The Monopix chips: Depleted monolithic active pixel sensors with a column-drain read-out architecture for the ATLAS Inner Tracker upgrade

et al.

- JINST 14 (2019) 06, C06006
•
e-Print:
- 1902.03679
•
DOI:
- 10.1088/1748-0221/14/06/C06006

[6]

Konstantinos Moustakas: Design and Development of Depleted Monolithic Active Pixel Sensors with Small Collection Electrode for High-Radiation Applications