1. Novel Silicon and GaAs Sensors for Compact Sampling Calorimeters
- Author
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Abramowicz, H., Soto, M. Almanza, Benhammou, Y., Daniluk, W., Elad, M., Firlej, M., Fiutowski, T., Ghenescu, V., Grzelak, G., Horn, D., Huang, S., Idzik, M., Irles, A., Kotula, J., Levy, A., Levy, I., Lohmann, W., Morón, J., Neagu, A. T., Pietruch, D., Potlog, P. M., Świentek, K., Żarnecki, A. F., and Zembaczyński, K.
- Subjects
Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
Two samples of silicon pad sensors and two samples of GaAs sensors are studied in an electron beam with 5 GeV energy from the DESY-II test-beam facility. The sizes of the silicon and GaAs sensors are about 9$\times$9 cm$^2$ and 5$\times$8 cm$^2$, respectively. The thickness is 500 micrometer for both the silicon and GaAs sensors. The pad size is about 5$\times$5 mm$^2$. The sensors are foreseen to be used in a compact electromagnetic sampling calorimeter. The readout of the pads is done by metal traces connected to the pads and the front-end ASICs at the edges of the sensors. For the silicon sensors, copper traces on a Kapton foil are connected to the sensor pads with conducting glue. The pads of the GaAs sensors are connected to bond-pads via aluminium traces on the sensor substrate. The readout is based on a dedicated front-end ASIC, called FLAME. Pre-processing of the raw data and deconvolution is performed with FPGAs. The whole system is orchestrated by a Trigger Logic Unit. Results are shown for the signal-to-noise ratio, the homogeneity of the response, edge effects on pads, and for signals due to the readout traces., Comment: 22 pages, 24 figures, submitted to The European Physical Journal C
- Published
- 2025