open access

Vol 16, No 2 (2013)
Original articles
Published online: 2013-08-01
Submitted: 2013-08-13
Accepted: 2013-08-13
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Individual dose monitoring of the nuclear medicine departments staff controlled by Central Laboratory for Radiological Protection

Kamil Szewczak, Sławomir Jednoróg, Paweł Krajewski
DOI: 10.5603/NMR.2013.0036
·
Nucl. Med. Rev 2013;16(2):62-65.

open access

Vol 16, No 2 (2013)
Original articles
Published online: 2013-08-01
Submitted: 2013-08-13
Accepted: 2013-08-13

Abstract

Presented paper describes the results of the individual doses measurements for ionizing radiation, carried out by the Laboratoryof Individual and Environmental Doses Monitoring (PDIS) of the Central Laboratory for Radiological Protection in Warsaw (CLOR) for the medical staff employees in several nuclear medicine (NM) departments across Poland. In total there are48 NM departments in operation in Poland [1] (consultation inNuclear Atomic Agency). Presented results were collected over the period from January 2011 to December 2011 at eight NMdepartments located in Krakow, Warszawa (two departments), Rzeszow (two departments), Opole, Przemysl and Gorzow Wielkopolski. For radiation monitoring three kinds of thermo luminescence dosimeters (TLD) were used. The first TLD h collectedinformation about whole body (C) effective dose, the second dosimeter was mounted in the ring (P) meanwhile the third on thewrist (N) of the tested person. Reading of TLDs was performed in quarterly periods. As a good approximation of effective and equivalent dose assessment of operational quantities both the individual dose equivalent Hp(10) and the Hp(0.07) were used. The analysis of the data was performed using two methods The first method was based on quarterly estimations of Hp(10)q and Hp(0.07)q while the second measured cumulative annual doses Hp(10)a and Hp(0.07)a. The highest recorded value of the radiation dose for quarterly assessments reached 24.4 mSv and was recorded by the wrist type dosimeter worn by a worker involved in source preparation procedure. The mean values of Hp(10)q(C type dosimeter) and Hp(0.07)q (P and N type dosimeter) for all monitored departments were respectively 0.46 mSv and 3.29 mSv. There was a strong correlation between the performed job and the value of the received dose. The highest doses alwayswere absorbed by those staff members who were involved insources preparation. The highest annual cumulative dose for a particular worker in the considered time period was 4.22 mSv for Hp(10)a and 67.7 mSv for Hp(0.07)a. In 2011 no case of exceeding the allowed dose limits was noted.

Abstract

Presented paper describes the results of the individual doses measurements for ionizing radiation, carried out by the Laboratoryof Individual and Environmental Doses Monitoring (PDIS) of the Central Laboratory for Radiological Protection in Warsaw (CLOR) for the medical staff employees in several nuclear medicine (NM) departments across Poland. In total there are48 NM departments in operation in Poland [1] (consultation inNuclear Atomic Agency). Presented results were collected over the period from January 2011 to December 2011 at eight NMdepartments located in Krakow, Warszawa (two departments), Rzeszow (two departments), Opole, Przemysl and Gorzow Wielkopolski. For radiation monitoring three kinds of thermo luminescence dosimeters (TLD) were used. The first TLD h collectedinformation about whole body (C) effective dose, the second dosimeter was mounted in the ring (P) meanwhile the third on thewrist (N) of the tested person. Reading of TLDs was performed in quarterly periods. As a good approximation of effective and equivalent dose assessment of operational quantities both the individual dose equivalent Hp(10) and the Hp(0.07) were used. The analysis of the data was performed using two methods The first method was based on quarterly estimations of Hp(10)q and Hp(0.07)q while the second measured cumulative annual doses Hp(10)a and Hp(0.07)a. The highest recorded value of the radiation dose for quarterly assessments reached 24.4 mSv and was recorded by the wrist type dosimeter worn by a worker involved in source preparation procedure. The mean values of Hp(10)q(C type dosimeter) and Hp(0.07)q (P and N type dosimeter) for all monitored departments were respectively 0.46 mSv and 3.29 mSv. There was a strong correlation between the performed job and the value of the received dose. The highest doses alwayswere absorbed by those staff members who were involved insources preparation. The highest annual cumulative dose for a particular worker in the considered time period was 4.22 mSv for Hp(10)a and 67.7 mSv for Hp(0.07)a. In 2011 no case of exceeding the allowed dose limits was noted.
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Keywords

dose monitoring, TLD, occupational exposure, individual dose equivalent, dose limits

About this article
Title

Individual dose monitoring of the nuclear medicine departments staff controlled by Central Laboratory for Radiological Protection

Journal

Nuclear Medicine Review

Issue

Vol 16, No 2 (2013)

Pages

62-65

Published online

2013-08-01

DOI

10.5603/NMR.2013.0036

Bibliographic record

Nucl. Med. Rev 2013;16(2):62-65.

Keywords

dose monitoring
TLD
occupational exposure
individual dose equivalent
dose limits

Authors

Kamil Szewczak
Sławomir Jednoróg
Paweł Krajewski

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