Report
Design,fabrication and characterization of 8x9 n-type silicon pad array for sampling calorimetry
| العنوان: | Design,fabrication and characterization of 8x9 n-type silicon pad array for sampling calorimetry |
|---|---|
| المؤلفون: | Sawan, Tambave, G., Bouly, J. L., Bourrion, O., Chujo, T., Das, A., Inaba, M., Kashyap, V. K. S., Krug, C., Laha, R., Loizides, C., Mohanty, B., Ponchant, M. M. Mondal N., Sharma, K. P., Singh, R., Tourres, D. |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Experiment Nuclear Experiment Physics (Other) |
| مصطلحات موضوعية: | Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment |
| الوصف: | This paper reports the development and testing of n-type silicon pad array detectors targeted for the Forward Calorimeter (FoCal) detector, which is an upgrade of the ALICE detector at CERN, scheduled for data taking in Run~4~(2029-2034). The FoCal detector includes hadronic and electromagnetic calorimeters, with the latter made of tungsten absorber layers and granular silicon pad arrays read out using the High Granularity Calorimeter Readout Chip~(HGCROC). This paper covers the Technology Computer-Aided Design (TCAD) simulations, the fabrication process, current versus voltage (IV) and capacitance versus voltage (CV) measurements, test results with a blue LED and $^{90}$Sr beta source, and neutron radiation hardness tests. IV measurements for the detector showed that 90\% of the pads had leakage current below 10~nA at full depletion voltage. Simulations predicted a breakdown voltage of 1000~V and practical tests confirmed stable operation up to 500~V without breakdown. CV measurements in the data and the simulations gave a full depletion voltage of around 50~V at a capacitance of 35~pF. LED tests verified that all detector pads responded correctly. Additionally, the 1$\times$1 cm$^2$ pads were also tested with the neutron radiations at a fluence of $5\times10^{13}$ 1~MeV~n$_{eq}$/cm$^2$. Comment: 17 pages and 15 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.08144 |
| رقم الانضمام: | edsarx.2406.08144 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |