Radiation environment in high-altitude Antarctic plateau: Recent measurements and model studies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00574009" target="_blank" >RIV/61389005:_____/23:00574009 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.scitotenv.2023.164304" target="_blank" >https://doi.org/10.1016/j.scitotenv.2023.164304</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2023.164304" target="_blank" >10.1016/j.scitotenv.2023.164304</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radiation environment in high-altitude Antarctic plateau: Recent measurements and model studies

Popis výsledku v původním jazyce

Polar regions are the most exposed to secondary particles and radiation produced by primary cosmic rays in the atmo-sphere, because naturally they are with marginal geomagnetic shielding. In addition, the secondary particle flux con-tributing to the complex radiation field is enhanced at high-mountain altitudes compared to sea level because of the reduced atmospheric attenuation. At present, there are very few systematic experimental measurements of environmental dose at high southern latitudes, specifically at high-altitude region. Here, we report a campaign of mea-surements with different devices, that is passive and Liulin-type dosimeters, of the radiation background at high -mountain Antarctic station Vostok (3488 m above sea level, 78 & DEG, 27 & PRIME, S, 106 & DEG, 50 & PRIME, E). We compare the measurements with a Monte Carlo-based model for the propagation of the cosmic rays through the atmosphere and assessment of the radiation field in the atmosphere. We employed the model to estimate the radiation dose at Vostok station during the ground-level enhancement at 28 October 2021. As in previous studies by other teams, we show that the annual dose equivalent at high-altitude Antarctic facilities can significantly exceed the limit of 1 mSv established for the gen-eral population by the ICRP.

Název v anglickém jazyce

Radiation environment in high-altitude Antarctic plateau: Recent measurements and model studies

Popis výsledku anglicky

Polar regions are the most exposed to secondary particles and radiation produced by primary cosmic rays in the atmo-sphere, because naturally they are with marginal geomagnetic shielding. In addition, the secondary particle flux con-tributing to the complex radiation field is enhanced at high-mountain altitudes compared to sea level because of the reduced atmospheric attenuation. At present, there are very few systematic experimental measurements of environmental dose at high southern latitudes, specifically at high-altitude region. Here, we report a campaign of mea-surements with different devices, that is passive and Liulin-type dosimeters, of the radiation background at high -mountain Antarctic station Vostok (3488 m above sea level, 78 & DEG, 27 & PRIME, S, 106 & DEG, 50 & PRIME, E). We compare the measurements with a Monte Carlo-based model for the propagation of the cosmic rays through the atmosphere and assessment of the radiation field in the atmosphere. We employed the model to estimate the radiation dose at Vostok station during the ground-level enhancement at 28 October 2021. As in previous studies by other teams, we show that the annual dose equivalent at high-altitude Antarctic facilities can significantly exceed the limit of 1 mSv established for the gen-eral population by the ICRP.

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

<a href="/cs/project/EF15_003%2F0000481" target="_blank" >EF15_003/0000481: Centrum výzkumu kosmického záření a radiačních jevů v atmosféře</a><br>

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

Science of the Total Environment

ISSN

0048-9697

e-ISSN

1879-1026

Svazek periodika

890

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

164304

Kód UT WoS článku

001024692700001

EID výsledku v databázi Scopus

2-s2.0-85161032950