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Dada la diversidad de fenómenos que se observan en el campo de la física nuclear experimental, se desarrolla constantemente gran variedad de instrumentación científica. Uno de los elementos clave de estos instrumentos es el sistema de adquisición y procesamiento de datos, que normalmente es una cadena de adquisición construida a medida para el instrumento y/o experimento específico, o bien construida a partir de módulos electrónicos genéricos como los que utilizan los estándares NIM, CAMAC o VXI. Ambos enfoques presentan importantes inconvenientes: los sistemas de adquisición de datos a medida conllevan tiempo de desarrollo y no son económicamente rentables, dada su naturaleza específica e inflexible; y los módulos de instrumentación estándar son flexibles en su configuración, pero limitados en su funcionalidad, caros y a menudo poco prácticos para instrumentos en los que se requiere el manejo de una gran cantidad de señales. Este trabajo presenta un nuevo concepto de arquitectura integrada de adquisición, análisis y procesamiento de datos para su uso en electrónica de instrumentación nuclear que aborda estas limitaciones. Se propone una plataforma hardware común que se centra en la adaptabilidad a una amplia variedad de configuraciones de experimentos, pero que es capaz de proporcionar una funcionalidad y un rendimiento similares a los de un sistema de adquisición de datos hecho a medida, a la vez que se mantiene compacto, de bajo consumo y con un coste reducido. Esto se consigue aprovechando tecnologías como los ADC multicanal de alta velocidad, los dispositivos FPGA de lógica reconfigurable y los ordenadores compactos monoplaca basados en SoC, que permiten la implementación de la cadena de adquisición mediante una combinación de electrónica, hardware modular sintetizable y software basado en Linux. Finalmente, se ha construido un prototipo del concepto de sistema de adquisición propuesto y se describe su uso con éxito en el instrumento Muon Impact Tracer and Observer, un telescopio de muones compuesto por dos centelleadores de 1m2 y ocho tubos fotomultiplicadores que forma parte del observatorio de rayos cósmicos ORCA, actualmente instalado en la Base Antártica Española Juan Carlos I., Given the diversity of observed phenomena in the field of experimental nuclear physics, a large variety of scientific instrumentation is constantly being developed. One of the key elements in these instruments is the data acquisition and processing system, which is normally an acquisition chain either custom built for the specific instrument and/or experiment, or built upon generic electronic modules such those using the NIM, CAMAC or VXI standards. Both these approaches have important drawbacks: custom data acquisition systems take time to develop and are not costeffective, given their specific and inflexible nature; and standard instrumentation modules are flexible in their configuration, but limited in functionality, expensive, and often impractical for instruments where handling a large amount of signals is required. This work presents a new concept of integrated data acquisition, analysis and processing architecture for use in nuclear electronics instrumentation that tackles on these limitations. A common hardware platform design is proposed that is focused on adaptability to a wide variety of experiment configurations, but capable of providing functionality and performance similar to a custombuilt data acquisition system while also staying compact, low power and costeffective. This is achieved by leveraging technologies such as multi-channel highspeed ADCs, reconfigurable logic FPGA devices, and modern, compact and SoC based Single-Board Computers, which allow the implementation of the acquisition chain through a combination of electronics, modular synthesizable hardware and Linux-based software. Finally, a prototype of the proposed data acquisition system concept has been built, and its successful use in the Muon Impact Tracer and Observer instrument, a muon telescope composed of two 1m2 scintillators and eight Photomultiplier Tubes, which is part of the ORCA cosmic ray observatory currently installed in the Juan Carlos I Antarctic Base, is described.

The Castilla-La Mancha (CaLMa) neutron monitor is continuously operating since 26 October 2011. It is located at Guadalajara (40°38"N, 3°9"W) at 708 m above sea level and 55 km away from Madrid. It iscovering a gap in the Neutron Monitor Data Base (NMDB), thanks to its geographical location, its height above sea level and its vertical cutoff rigidity (6.95 GV). CaLMa is providing counts of galactic cosmic rays (GCRs) with a temporal resolution of 1 min, being the mean count rate 5 c/s/counter. This high cadence allows the monitoring of solar activity by mean the observed variation in count rate. Both in the sort term and in the long term activity, i.e., flare or coronal mass ejections and solar modulation, can therefore be studied with CaLMa"s measurements. During this last year, CaLMa has measured variations in the GCR count rate related to interplanetary coronal mass ejections, fast solar wind streams, shocks and stream interaction regions. In this work we analyze the solar wind condition associated to variations in CaLMa"s count rate and we compare them with other neutron monitors.