Quad-module characterization with the MALTA monolithic pixel chip

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1064; p. 169306
• Main Authors: Dachs, F., Zoubir, A.M., Sharma, A., Sanchez, C. Solans, Buttar, C.M., Bortoletto, D., Dobrijevic, D., Berlea, D.-V., Charbon, E., Piro, F., Gustavino, G., Sandaker, H., Pernegger, H., Tortajada, I. Asensi, Weick, J., Gonella, L., Flores Sanz De Acedo, L., Núñez, M. Vázquez, Gazi, M., LeBlanc, M., van Rijnbach, M., Riedler, P., Allport, P., Worm, S., Suligoj, T., Dao, V., Millan, V. Gonzalez, Snoeys, W.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2024
• Subjects: Large-area; MALTA; Module; Monolithic; Radiation hard; Silicon pixel detector; Large-area; Module; Radiation hard; Silicon pixel detector; MALTA; Monolithic
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2024.169306

The MALTA silicon pixel detector combines a depleted monolithic active pixel sensor (DMAPS) with a fully asynchronous front-end and readout. It features a high granularity pixel matrix with a 36.4 μm symmetric pixel pitch, low power consumption of <1 μW/pixel and low material budget with detector thicknesses as little as 50 μm. It achieves a radiation hardness to 100MRad TID and more than 1 × 10E15 1 MeV neq/cm2 with a time resolution of <2 ns (Pernegger et al., 2023). In order to cover large sensitive areas efficiently with a minimum of power and data connections the development of modules, comprising of up to 4 MALTA detectors, is studied. This contribution presents the beam test performance of parallel and serial powered MALTA 4-chip modules in an effort to characterize the sensor’s chip-to-chip data and power transmission and prepare the production of a first prototype of an ultra-light weight 4-chip module on a flexible circuit with next generation MALTA2 sensors.