We evaluate the performance of an Omnivision OV5647 CMOS image sensor (5 Mp) for detecting radiation from Sr90 and Cs137 sources. Our experimental setup uses a Raspberry Pi 3 mini-computer for data acquisition, with image processing using Python and OpenCV libraries. We specify the necessary settings to convert a standard camera into a particle detector sensitive to electrons and photons, including a two-step background filtering procedure. In addition, we implement the first detailed Geant4 simulation that describes the layered geometry and material composition of a commercial CMOS sensor along with the radioactive sources. To enhance the simulation, we include an algorithm for charge diffusion and conversion of the energy deposited by electrons and photons into ADC counts. Our measurements are presented in terms of cluster size, the maximum ADC signal per cluster, and the number of clu...

The authors gratefully acknowledge the Dirección de Gestión de la Investigación (DGI-PUCP) for funding under Grant No. DGI-2019-3-0044. C.S. acknowledges support from the Peruvian National Council for Science, Technology and Technological Innovation scholarship under Grant No. 236-2015-FONDECyT. We would also wish to thank R. Sanchez from the Applied Optics Group and the Quantum Optics Group for letting us use their lasers and equipment, as well as Y. Coello for the photodiode. We also thank J. A. Guerra for useful discussions and suggestions.

The scope of this paper is to make a feasibility analysis for energy production from sugarcane byproducts in Perú. Therefore, it is shown the history, methods, current scenario and future prospects of sugarcane plantations related to the ethanol industry and the sugar industry. There will be shown analysis of harvest residues (top and leaves). Bagasse is a mill residue, produced after sugarcane juice is extracted from the sugarcane. Nowadays this residue is burnt in boilers and this energy is used to generate steam. In the other hand, harvest residues represent a significant part of the energy contained in the sugarcane, but it is left in the field, or worse; burnt before the harvest. There will also be shown an estimated value of the electricity generation potential from sugarcane residues.

En el presente artículo se considera el potencial de biomasa que pueden generar actividades como la agricultura y ganadería, exceptuando el potencial forestal ya que Piura no presenta una significativa producción en este sector. Se han utilizado los datos más recientes proporcionados por el Instituto Nacional de Estadística e Informática y por el Sistema Integrado de Estadísticas Agrarias del Ministerio de Agricultura y Riego. Esto permitió identificar las áreas con mayor producción de biomasa (apta para procesos de digestión anaerobia) del departamento de Piura y realizar un cálculo de su potencial energético, que en las condiciones que se especifican en esta investigación, resultan en alrededor de 6800 m3 CH4/día o 248.2 GJ/día, pudiendo convertirse en unos 16.5 MWh al día de energía eléctrica.