Measurement of the relative response of TowerJazz Mini-MALTA CMOS prototypes at Diamond Light Source

Maria Mironova; Kaloyan Metodiev; Phil Allport; Ivan Berdalovic; Daniela Bortoletto; Craig Buttar; Roberto Cardella; Valerio Dao; Mateusz Dyndal; Patrick Freeman; Leyre Flores Sanz de Acedo; Laura Gonella; Thanushan Kugathasan; Heinz Pernegger; Francesco Piro; Richard Plackett; Petra Riedler; Abhishek Sharma; Enrico Junior Schioppa; Ian Shipsey; Carlos Solans Sanchez; Walter Snoeys; Hakan Wennloef; Daniel Weatherill; Daniel Wood; Steven Worm

doi:10.1016/j.nima.2019.163381

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arXiv · 1909.08392

Measurement of the relative response of TowerJazz Mini-MALTA CMOS prototypes at Diamond Light Source

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Abstract

This paper outlines the results of investigations into the effects of radiation damage in the mini-MALTA prototype. Measurements were carried out at Diamond Light Source using a micro-focus X-ray beam, which scanned across the surface of the device in 2 $\mathrm{\mu m}$ steps. This allowed the in-pixel photon response to be measured directly with high statistics. Three pixel design variations were considered: one with the standard continuous $\mathrm{n^-}$ layer layout and front-end, and extra deep p-well and $\mathrm{n^-}$ gap designs with a modified front-end. Five chips were measured: one unirradiated, one neutron irradiated, and three proton irradiated.

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Maria Mironova, Kaloyan Metodiev, Phil Allport, Ivan Berdalovic, Daniela Bortoletto, Craig Buttar, Roberto Cardella, Valerio Dao, Mateusz Dyndal, Patrick Freeman, Leyre Flores Sanz de Acedo, Laura Gonella, Thanushan Kugathasan, Heinz Pernegger, Francesco Piro, Richard Plackett, Petra Riedler, Abhishek Sharma, Enrico Junior Schioppa, Ian Shipsey, Carlos Solans Sanchez, Walter Snoeys, Hakan Wennloef, Daniel Weatherill, Daniel Wood, Steven Worm. 2019-09-18. Measurement of the relative response of TowerJazz Mini-MALTA CMOS prototypes at Diamond Light Source. https://doi.org/10.1016/j.nima.2019.163381

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