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Jun 17 – 21, 2024
CERN
Europe/Zurich timezone

DMAPS for measuring energy depositions and tracks of Galactic Cosmic Ray and Solar Energetic Particles

Jun 17, 2024, 9:45 AM
15m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
WG1 - Monolithic Sensors WG/WP1 - CMOS technologies

Speaker

Haris Lambropoulos (National and Kapodistrian University of Athens)

Description

Coarsely segmented Si diode detectors are widely used in space applications for measuring the mixed radiation fields. Starting in 2012, when 5 Timepix chips were installed at the International Space Station hybrid pixel detectors have entered space radiation dosimetry and monitoring. The problems to be solved for measuring GCR and SEP events are the dynamic range of the charge signal which exceeds 80 dB, the event rates starting from 2 to 4 per cm2∙s-1 and reaching 55∙107 per cm2∙s-1 (for a 4π sr field of view), and, most importantly, the fact that limited power is available from solar or other sources while the heat generated requires material (i.e., extra weight) to manage.We developed two kinds of pixel architecture: The low gain pixel can process high energy (charge) depositions up to 8 pC and the high gain can process low energy depositions by fast charged particles down to 0.5 fC.

Type of presentation (in-person/online) online presentation (zoom)
Type of presentation (scientific results or project proposal) Presentation on scientific results

Primary authors

Mr Alexandros Papangelis (National and Kapodistrian University of Athens) Dr Elena Papadomanolaki (National and Kapodistrian University of Athens) Dr Gerasimos Theodoratos (National and Kapodistrian University of Athens) Haris Lambropoulos (National and Kapodistrian University of Athens)

Presentation materials