Abstract
Background: due to volatility of radioactive iodine solutions, usually internal exposure would occur in personnel that are working in nuclear medicine centers. The activities in the thyroid of individuals who work in nuclear medicine centers of North West provinces of Iran were measured using NaI detectors. In every center, nearly 40- 500 mCi of {sup 131}I and 50 - 600 {mu}Ci of {sup 125}I are used for diagnosis or treating patients, as well as monthly protein labeling. Materials and methods: a portable measurement instrument was made for this purpose. A collimator with thickness of 10 mm lead thickness of copper alloy with 2 mm was made to focus the detector on thyroid gland and to reduce the background. Two NaI (T1) detectors one with lower thickness for {sup 125}I and one with higher thickness for {sup 131}I were used for measurement. The goal of these measurements was to determine the activity of radio iodines in the thyroid gland of individuals in medical centers, and to give some advice such as more care at their working place and increasing the power of their venting system for reducing radio iodines exposure. The detectors had been calibrated for {sup 125}I and {sup 131}I
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Heravi, G H;
Garshasbi, H;
Karimi Doba, J;
Asghari, S K
[1]
- Iranian Nuclear Rgulatory Authority, National Radiation Protection Department, Tehran (Iran, Islamic Republic of)
Citation Formats
Heravi, G H, Garshasbi, H, Karimi Doba, J, and Asghari, S K.
Monitoring of iodine-125 and iodine-131 in thyroid of individuals in Nuclear Medicine Centers of North West Provinces of Iran.
Iran, Islamic Republic of: N. p.,
2004.
Web.
Heravi, G H, Garshasbi, H, Karimi Doba, J, & Asghari, S K.
Monitoring of iodine-125 and iodine-131 in thyroid of individuals in Nuclear Medicine Centers of North West Provinces of Iran.
Iran, Islamic Republic of.
Heravi, G H, Garshasbi, H, Karimi Doba, J, and Asghari, S K.
2004.
"Monitoring of iodine-125 and iodine-131 in thyroid of individuals in Nuclear Medicine Centers of North West Provinces of Iran."
Iran, Islamic Republic of.
@misc{etde_20620296,
title = {Monitoring of iodine-125 and iodine-131 in thyroid of individuals in Nuclear Medicine Centers of North West Provinces of Iran}
author = {Heravi, G H, Garshasbi, H, Karimi Doba, J, and Asghari, S K}
abstractNote = {Background: due to volatility of radioactive iodine solutions, usually internal exposure would occur in personnel that are working in nuclear medicine centers. The activities in the thyroid of individuals who work in nuclear medicine centers of North West provinces of Iran were measured using NaI detectors. In every center, nearly 40- 500 mCi of {sup 131}I and 50 - 600 {mu}Ci of {sup 125}I are used for diagnosis or treating patients, as well as monthly protein labeling. Materials and methods: a portable measurement instrument was made for this purpose. A collimator with thickness of 10 mm lead thickness of copper alloy with 2 mm was made to focus the detector on thyroid gland and to reduce the background. Two NaI (T1) detectors one with lower thickness for {sup 125}I and one with higher thickness for {sup 131}I were used for measurement. The goal of these measurements was to determine the activity of radio iodines in the thyroid gland of individuals in medical centers, and to give some advice such as more care at their working place and increasing the power of their venting system for reducing radio iodines exposure. The detectors had been calibrated for {sup 125}I and {sup 131}I by a locally made ANSI/IAEA Plexiglass neck phantom (ANSI N44.3 1973). Results: There were not any contamination and thyroid activities of {sup 125}I in the thyroid glands of personnel. The activity of {sup 134}I in the thyroid gland of individuals in all centers was lower than 0.4 KBq, and the activity of {sup 131}I in one center was as high as 3.4 kBq. The background of every place was determined and subtracted from each measurement. Conclusion: the results indicate that more measurements should have been carried out in all nuclear medicine centers to determine the activity of individuals thyroid gland in Iran. In addition, the workers of those centers should try to reduce the intake and exposure to {sup 131}I and {sup 125}I using more care at their working place and more efficient ventilator.}
journal = []
issue = {3}
volume = {2}
journal type = {AC}
place = {Iran, Islamic Republic of}
year = {2004}
month = {Dec}
}
title = {Monitoring of iodine-125 and iodine-131 in thyroid of individuals in Nuclear Medicine Centers of North West Provinces of Iran}
author = {Heravi, G H, Garshasbi, H, Karimi Doba, J, and Asghari, S K}
abstractNote = {Background: due to volatility of radioactive iodine solutions, usually internal exposure would occur in personnel that are working in nuclear medicine centers. The activities in the thyroid of individuals who work in nuclear medicine centers of North West provinces of Iran were measured using NaI detectors. In every center, nearly 40- 500 mCi of {sup 131}I and 50 - 600 {mu}Ci of {sup 125}I are used for diagnosis or treating patients, as well as monthly protein labeling. Materials and methods: a portable measurement instrument was made for this purpose. A collimator with thickness of 10 mm lead thickness of copper alloy with 2 mm was made to focus the detector on thyroid gland and to reduce the background. Two NaI (T1) detectors one with lower thickness for {sup 125}I and one with higher thickness for {sup 131}I were used for measurement. The goal of these measurements was to determine the activity of radio iodines in the thyroid gland of individuals in medical centers, and to give some advice such as more care at their working place and increasing the power of their venting system for reducing radio iodines exposure. The detectors had been calibrated for {sup 125}I and {sup 131}I by a locally made ANSI/IAEA Plexiglass neck phantom (ANSI N44.3 1973). Results: There were not any contamination and thyroid activities of {sup 125}I in the thyroid glands of personnel. The activity of {sup 134}I in the thyroid gland of individuals in all centers was lower than 0.4 KBq, and the activity of {sup 131}I in one center was as high as 3.4 kBq. The background of every place was determined and subtracted from each measurement. Conclusion: the results indicate that more measurements should have been carried out in all nuclear medicine centers to determine the activity of individuals thyroid gland in Iran. In addition, the workers of those centers should try to reduce the intake and exposure to {sup 131}I and {sup 125}I using more care at their working place and more efficient ventilator.}
journal = []
issue = {3}
volume = {2}
journal type = {AC}
place = {Iran, Islamic Republic of}
year = {2004}
month = {Dec}
}