CaLMa Neutron Monitor: current status, first observations and future improvements

Blanco, J. J.; Medina, J.; García-Población, Oscar; Gómez‐Herrero, R.; García-Tejedor, Ignacio; Ayuso, Sindulfo; Catalán, Edwin

doi:10.1088/1742-6596/632/1/012052

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The muon telescope used in this application (MD1) is installed in the facilities of the Castilla-La Mancha Neutron Monitor (CaLMa) (Medina et al, 2013;Blanco et al, 2015;García-Población et al, 2014). The MD1 and the neutron monitor are located in the same room and their measurements can be directly compared.…”

Section: Monitoring Solar Activity With Ground-based Cosmic Ray Countersmentioning

confidence: 99%

A coincidence detection system based on real-time software

Ayuso

Blanco

Medina

et al. 2016

Geosci. Instrum. Method. Data Syst.

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Abstract. Conventional real-time coincidence systems use electronic circuitry to detect coincident pulses (hardware coincidence). In this work, a new concept of coincidence system based on real-time software (software coincidence) is presented. This system is based on the recurrent supervision of the analogue-to-digital converters status, which is described in detail. A prototype has been designed and built using a low-cost development platform. It has been applied to two different experimental sets for cosmic ray muon detection. Experimental muon measurements recorded simultaneously using conventional hardware coincidence and our software coincidence system have been compared, yielding identical results. These measurements have also been validated using simultaneous neutron monitor observations. This new software coincidence system provides remarkable advantages such as higher simplicity of interconnection and adjusting. Thus, our system replaces, at least, three Nuclear Instrument Modules (NIMs) required by conventional coincidence systems, reducing its cost by a factor of 40 and eliminating pulse delay adjustments.

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Section: Monitoring Solar Activity With Ground-based Cosmic Ray Countersmentioning

confidence: 99%

A coincidence detection system based on real-time software

Ayuso

Blanco

Medina

et al. 2016

Geosci. Instrum. Method. Data Syst.

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“…Väisänen et al 28 provide a brief history of NM as space-physics instruments whilst providing a comprehensive analysis of all available NM data sets (300 data sets from 147 NMs spanning almost seven decades), considers the quality and consistency of the data and provides recommendations. Several other works document improvements made, standardisations and recommend further strategies to achieve the most optimal network 19 , 29 – 31 .…”

Section: Introductionmentioning

confidence: 99%

A new ground level neutron monitor for space weather assessment

Aspinall,

Alton,

Binnersley

et al. 2024

Sci Rep

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We report on a new ground-level neutron monitor design for studying cosmic rays and fluxes of solar energetic particles at the Earth’s surface. The first-of-its-kind instrument, named the NM-2023 after the year it was standardised and following convention, will be installed at a United Kingdom Meteorological Office observatory (expected completion mid 2024) and will reintroduce such monitoring in the UK for the first time since ca. 1984. Monte Carlo radiation transport code is used for the development and application of parameterised models to investigate alternative neutron detectors, their location and bulk material geometry in a realistic cosmic ray neutron field. Benchmarked against a model of the current and most widespread design standardised in 1964 (the NM-64), two main parameterisation studies are conducted; a simplified standard model and a concept slab parameterisation. We show that the NM-64 standard is well optimised for the intended large-diameter boron trifluoride (BF$$_3$$ 3 ) proportional counters but not for multiple smaller diameter counters. The new design (based on a novel slab arrangement) produces comparable counting efficiencies to an NM-64 with six BF$$_3$$ 3 counters and has the added advantage of being more compact, lower cost and avoids the use of highly toxic BF$$_3$$ 3 .

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CaLMa Neutron Monitor: current status, first observations and future improvements

Cited by 2 publications

References 9 publications

A coincidence detection system based on real-time software

A coincidence detection system based on real-time software

A new ground level neutron monitor for space weather assessment

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