Characterization of the “bGeigie Nano” instrument used in Citizen Science dose-rate monitoring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F23%3AN0000015" target="_blank" >RIV/86652052:_____/23:N0000015 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1140/epjs/s11734-023-00877-7" target="_blank" >https://link.springer.com/article/10.1140/epjs/s11734-023-00877-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjs/s11734-023-00877-7" target="_blank" >10.1140/epjs/s11734-023-00877-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of the “bGeigie Nano” instrument used in Citizen Science dose-rate monitoring

Popis výsledku v původním jazyce

Safecast, a Citizen Science project devoted to monitoring ambient dose rate, initiated in Japan 2011 after the Fukushima NPP accident and soon spread worldwide. Its standard instrument is bGeigie Nano, featuring a pancake-type thin-window GM-sensor coupled to a GPS receiver and data-storage, in a sturdy plastic case allowing field use. Recorded ADR tracks are shown on a publicly accessible map on Safecast.org, containing almost 200 M records by 2022. Interpretability of results depends on quality assurance of the measurement process, covering both metrological characterization of the instrument and its practical use —relevant because users are citizens in general not familiar with metrological procedures, measurement statistics, the concept of representativeness, etc. Here we focus on the former aspect. In field use, the source of GM response is internal background (BG), ambient gamma-rays and secondary cosmic radiation (SCR). Through dedicated experiments, mainly performed on lakes (where the terrestrial gamma component is largely absent), we quantified the BG and SCR response and investigated the variance of response between instruments. We investigated conformity to count-rates Poisson statistics and the occurrence of spurious extreme signals, which can lead to artefacts in ADR maps. Impact of experimental results on practice and uncertainties are discussed.

Název v anglickém jazyce

Characterization of the “bGeigie Nano” instrument used in Citizen Science dose-rate monitoring

Popis výsledku anglicky

Safecast, a Citizen Science project devoted to monitoring ambient dose rate, initiated in Japan 2011 after the Fukushima NPP accident and soon spread worldwide. Its standard instrument is bGeigie Nano, featuring a pancake-type thin-window GM-sensor coupled to a GPS receiver and data-storage, in a sturdy plastic case allowing field use. Recorded ADR tracks are shown on a publicly accessible map on Safecast.org, containing almost 200 M records by 2022. Interpretability of results depends on quality assurance of the measurement process, covering both metrological characterization of the instrument and its practical use —relevant because users are citizens in general not familiar with metrological procedures, measurement statistics, the concept of representativeness, etc. Here we focus on the former aspect. In field use, the source of GM response is internal background (BG), ambient gamma-rays and secondary cosmic radiation (SCR). Through dedicated experiments, mainly performed on lakes (where the terrestrial gamma component is largely absent), we quantified the BG and SCR response and investigated the variance of response between instruments. We investigated conformity to count-rates Poisson statistics and the occurrence of spurious extreme signals, which can lead to artefacts in ADR maps. Impact of experimental results on practice and uncertainties are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

The European Physical Journal Special Topics

ISSN

1951-6355

e-ISSN

1951-6401

Svazek periodika

232

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

1465-1475

Kód UT WoS článku

000997992600003

EID výsledku v databázi Scopus

2-s2.0-85160638200