Liulin silicon semiconductor spectrometers as cosmic ray monitors at the high mountain observatories Jungfraujoch and Lomnický stit

Kubancák, Jan; Ambrozova, Iva; Bütikofer, Rolf; Kudela, Karel; Langer, Ronald; Davidkova, M.; Ploc, Ondrej; Malusek, A. (2014). Liulin silicon semiconductor spectrometers as cosmic ray monitors at the high mountain observatories Jungfraujoch and Lomnický stit. Journal of instrumentation, 9(07), P07018-P07018. Institute of Physics Publishing IOP 10.1088/1748-0221/9/07/P07018

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Currently, most cosmic ray data are obtained by detectors on satellites, aircraft, high-altitude balloons and ground (neutron monitors). In our work, we examined whether Liulin semiconductor spectrometers (simple silicon planar diode detectors with spectrometric properties) located at high mountain observatories could contribute new information to the monitoring of cosmic rays by analyzing data from selected solar events between 2005 and 2013. The decision thresholds and detection limits of these detectors placed at Jungfraujoch (Switzerland; 3475 m a.s.l.; vertical cut-off rigidity 4.5 GV) and Lomnicky stıt (Slovakia; 2633 m a.s.l.; vertical cut-off rigidity 3.84 GV) highmountain observatories were determined. The data showed that only the strongest variations of the cosmic ray flux in this period were detectable. The main limitation in the performance of these detectors is their small sensitive volume and low sensitivity of the PIN photodiode to neutrons.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Bütikofer, Rolf

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering
500 Science
500 Science > 530 Physics

ISSN:

1748-0221

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Rolf Bütikofer

Date Deposited:

07 Jan 2016 16:02

Last Modified:

26 Jun 2016 02:09

Publisher DOI:

10.1088/1748-0221/9/07/P07018

BORIS DOI:

10.7892/boris.74463

URI:

https://boris.unibe.ch/id/eprint/74463

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