Calibration of spectrometric detectors for air kerma rates in environmental monitoring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F20%3AN0000050" target="_blank" >RIV/86652052:_____/20:N0000050 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60162694:G45__/20:00556852

Výsledek na webu

<a href="http://ntrp.vinca.rs/2020_4/Ohera2020_4.html" target="_blank" >http://ntrp.vinca.rs/2020_4/Ohera2020_4.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2298/NTRP2004323O" target="_blank" >10.2298/NTRP2004323O</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Calibration of spectrometric detectors for air kerma rates in environmental monitoring

Popis výsledku v původním jazyce

The spectrometric systems, especially based on NaI(Tl) and HPGedetectors, are used for nuclide identification and calculation of their activities from the ground measurements and airborne monitoring. The determination of the air kerma (dose) rates is also very important for environmental measurements. In such cases, the detectors should be calibrated for air kerma (dose) rates in nGyh–1 or µGyh–1. A simple calibration of NaI(Tl), HPGe as well as plastic detectors for the low-level air kerma rates is presented in this contribution. This calibration is based on comparing the relative absorbed energy rate in detectors (MeVs–1) calculated from spectra with the air kerma rates calculated by the Monte Carlo simulation and supplementary to the data from the RSS Reuter&Stokes high pressure ion chamber. This method also eliminates the conversion from the non-air kerma rates in crystals to the air kerma rates. Three different types of small cylindrical detectors were calibrated for the air kerma rates from the background of 26 nGyh–1 to some tens of µGyh–1 in the energy range to the maximum of 3 MeV. The results of calibrations of the 3" x 3" NaI(Tl), HPGe detector and a small plastic detector (made of polystyrene) including some examples of environmental measurements are presented.

Název v anglickém jazyce

Calibration of spectrometric detectors for air kerma rates in environmental monitoring

Popis výsledku anglicky

The spectrometric systems, especially based on NaI(Tl) and HPGedetectors, are used for nuclide identification and calculation of their activities from the ground measurements and airborne monitoring. The determination of the air kerma (dose) rates is also very important for environmental measurements. In such cases, the detectors should be calibrated for air kerma (dose) rates in nGyh–1 or µGyh–1. A simple calibration of NaI(Tl), HPGe as well as plastic detectors for the low-level air kerma rates is presented in this contribution. This calibration is based on comparing the relative absorbed energy rate in detectors (MeVs–1) calculated from spectra with the air kerma rates calculated by the Monte Carlo simulation and supplementary to the data from the RSS Reuter&Stokes high pressure ion chamber. This method also eliminates the conversion from the non-air kerma rates in crystals to the air kerma rates. Three different types of small cylindrical detectors were calibrated for the air kerma rates from the background of 26 nGyh–1 to some tens of µGyh–1 in the energy range to the maximum of 3 MeV. The results of calibrations of the 3" x 3" NaI(Tl), HPGe detector and a small plastic detector (made of polystyrene) including some examples of environmental measurements are presented.

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/VI20172020104" target="_blank" >VI20172020104: Nová generace portálových monitorů pro zajištění bezpečnosti obyvatelstva (PoMoZ)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Nuclear Technology and Radiation Protection

ISSN

1451-3994

e-ISSN

1452-8185

Svazek periodika

35

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

RS - Srbská republika

Počet stran výsledku

8

Strana od-do

323-330

Kód UT WoS článku

000621765200006

EID výsledku v databázi Scopus

2-s2.0-85103296872