The KACST muon detector and its application to cosmic-ray variations studies

Maghrabi, Abdullrahman; Harbi, H. Al; Al-Mostafa, Z. A.; Kordi, M.N.; Alshehri, Saad M.

doi:10.1016/j.asr.2011.10.011

Cited by 35 publications

(23 citation statements)

References 42 publications

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“…The two most common describe the cosmic ray intensity variation associated with the barometric effect through a linear (e.g., Trefall 1955b; Zazyan et al 2015) or an exponential (e.g., Lindgren 1962;Maghrabi et al 2012) dependence with the pressure deviation. In both cases, the magnitude of the pressure influence is given by a coefficient (the barometric coefficient).…”

Section: Appendix Atmospheric Pressure (Barometric) Effect Analisys Amentioning

confidence: 99%

The Temperature Effect in Secondary Cosmic Rays (Muons) Observed at the Ground: Analysis of the Global Muon Detector Network Data

Mendonça

Braga

Echer

et al. 2016

ApJ

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The analysis of cosmic ray intensity variation seen by muon detectors at Earthʼs surface can help us to understand astrophysical, solar, interplanetary and geomagnetic phenomena. However, before comparing cosmic ray intensity variations with extraterrestrial phenomena, it is necessary to take into account atmospheric effects such as the temperature effect. In this work, we analyzed this effect on the Global Muon Detector Network (GMDN), which is composed of four ground-based detectors, two in the northern hemisphere and two in the southern hemisphere. In general, we found a higher temperature influence on detectors located in the northern hemisphere. Besides that, we noticed that the seasonal temperature variation observed at the ground and at the altitude of maximum muon production are in antiphase for all GMDN locations (low-latitude regions). In this way, contrary to what is expected in high-latitude regions, the ground muon intensity decrease occurring during summertime would be related to both parts of the temperature effect (the negative and the positive). We analyzed several methods to describe the temperature effect on cosmic ray intensity. We found that the mass weighted method is the one that best reproduces the seasonal cosmic ray variation observed by the GMDN detectors and allows the highest correlation with long-term variation of the cosmic ray intensity seen by neutron monitors.

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Section: Appendix Atmospheric Pressure (Barometric) Effect Analisys Amentioning

confidence: 99%

The Temperature Effect in Secondary Cosmic Rays (Muons) Observed at the Ground: Analysis of the Global Muon Detector Network Data

Mendonça

Braga

Echer

et al. 2016

ApJ

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“…The details of this detector and its calibration procedures can be found in several papers [10][11]. The detector basically consists of a 1000 mm × 1000 mm × 50 mm sheet of plastic scintillator, contained in a light-tight box with a photomultiplier tube (PMT) placed at the centre of the box to view the scintillation.…”

Section: Instrumentation and Methodsmentioning

confidence: 99%

“…The selected signals are then amplified using a commercial preamplifier and amplifier circuits. An analogue-to-digital converter (ADC) circuit has been developed [10], and is used to digitize the amplified signal from the PMT. The data were acquired every 15 minutes, along with the atmospheric pressure and room temperature.…”

Section: Instrumentation and Methodsmentioning

confidence: 99%

The Effect of Some Meteorological Parameters on the Cosmic Ray Muons detected by KACST detector

Maghrabi¹,

Aldosary²

2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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To study the cosmic ray modulation properly, it is important to remove atmospheric effects. In this study cosmic ray data from the KACST detector in Riyadh, Saudi Arabia (Rc = 14.4 GV), for the period 2007-2009, were used to study the effect of some meteorological parameters on cosmic ray muons. The parameters of interest are the atmospheric pressure, temperature, and relative humidity. We have found that the atmospheric pressure and temperature are inversely correlated with the muon rate. On the other hand, the relative humidity is correlated with the number of cosmic ray muons.

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“…Cosmic ray muons have been be detected at different places around the world using different types of detectors ranging from simple single channel detector [12,13] to rather sophisticated telescopes at the ground and underground [14].…”

Section: Introductionmentioning

confidence: 99%

Designing and constructing of a two scintillator crystal rotatable telescope for muon flux variation studies

2014

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A rotatable muon detection telescope with two layers of scintillators was designed and constructed at the physics detector laboratory at KACST, Saudi Arabia. The objective of this system is to study the zenith angle dependence of high energy cosmic ray muons. The system has the flexibility to rotate in all directions to cover the zenith angle from 0-90 0 for muon distribution studies, as well as the azimuth angle from 0-359 0 to observe the geomagnetic field effects on it. In this paper, the designing and the construction works as well as the calibration procedures for the detection system will be given. Some of the preliminarily results and some of the future experiments and possible modifications will be outlined.

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The KACST muon detector and its application to cosmic-ray variations studies

Cited by 35 publications

References 42 publications

The Temperature Effect in Secondary Cosmic Rays (Muons) Observed at the Ground: Analysis of the Global Muon Detector Network Data

The Temperature Effect in Secondary Cosmic Rays (Muons) Observed at the Ground: Analysis of the Global Muon Detector Network Data

The Effect of Some Meteorological Parameters on the Cosmic Ray Muons detected by KACST detector

Designing and constructing of a two scintillator crystal rotatable telescope for muon flux variation studies

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