Upgrade of electronics of neutron monitors DOMC and DOMB
|Author:||Poluianov, Stepan1,2; Usoskin, Ilya1,2; Strauss, Du Toit3|
1Sodankylä Geophysical Observatory, University of Oulu, Finland
2Space Physics and Astronomy Research Unit, University of Oulu, Finland
3Centre of Space Research, North-West University, Potchefstroom, South Africa
|Online Access:||PDF Full Text (PDF, 1.8 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021062339678
|Publish Date:|| 2021-06-23
DOMC and DOMB neutron monitors (NM) operate at the Concordia research station (Dome C on the Antarctic plateau, 75°06’S, 123°23’E, 3233 m a.s.l.) since 2015. Their high elevation and proximity to the geomagnetic pole provide low atmospheric and geomagnetic cutoffs and, therefore, the exceptionally high sensitivity to lowenergy cosmic rays. The instruments are the so-called mini neutron monitors with BF3-filled counter tubes. DOMC has the standard design with a lead neutron multiplier and DOMB is a so-called “bare” (lead-free) unit. We report on a recent upgrade of the electronics heads of these instruments. The new heads have a modular architecture, built upon a single-board computer Raspberry Pi. The upgrade increases the capabilities of the instruments in two aspects: (1) measurements, particularly, of cosmic ray multiplicity; (2) remote control and monitoring. The new electronic heads register each pulse from a detector, giving a timestamp with microsecond precision, which is crucial for multiplicity measurements. Many important parameters (e.g., high voltage, pulse detection thresholds) can be controlled and adjusted remotely with the new design. High computing power allows performing data processing on the fly. The upgrade increases the capability of DOMC and DOMB in cosmic ray measurements and improves control of the operation of the neutron monitors.
Cosmic ray studies with neutron detectors
|Volume:||2021 : 1|
|Pages:||167 - 171|
Proceedings of NMDB@Home 2020
NMDB@Home : virtual symposium on cosmic ray studies with neutron detector
|Type of Publication:||
B3 Article in conference proceedings
|Field of Science:||
115 Astronomy and space science
The work was partly supported by FINNARP and Academy of Finland (projects 264378 CRIPA, 304435 CRIPA-X, ReSoLVE and 321882 ESPERA). We are thankful for the hospitality of the Italian Polar Programme PNRA (via the LTCPAA PNRA 2015/AC3 project) and the French Polar Institute IPEV.
|Academy of Finland Grant Number:||
264378 (Academy of Finland Funding decision)
304435 (Academy of Finland Funding decision)
321882 (Academy of Finland Funding decision)
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