Temat: Internal Dosimetry - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dosimetry of ¹³¹ I for Occupational Radiation Workers by Whole Body Counting System
Autorzy:: Rahman, M. S.
Haydar, M. A.
Patwary, M. K. A.
Shome, S. M.
Paul, S.
Paul, D.
Meaze, A. K. M. M. H.
Powiązania:: https://bibliotekanauki.pl/articles/411910.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Internal Dosimetry
Whole Body Counter
IMBA
131I
Opis:: Internal radiation dosimetry of occupational radiation workers due to inhalation of ¹³¹ I during maintenance at iodine ¹³¹ I hot cell of Radioisotope Production Division (RIPD) of Bangladesh Atomic Energy Commission have been performed with Whole Body Counter (WBC) containing two large size NaI detector. The contaminated radioactivity of the radiation workers by ¹³¹ I was immediately conducted using a WBC (CANBERRA, FASTSCAN model 2250) and counting was repeated again a few days later. The performance of whole body counter was checked by CANBERRA transfer phantom (model 2257) with a mixed source (20 ml vial). The intake was calculated by Apex-Invivo counting software and then corresponding dose in thyroid were estimated by using Integrated Modules for Bioassay Analysis (IMBA) Professional Plus code modules. The body activity due to intake of ¹³¹ I and the total effective and equivalent dose in thyroid were also estimated and discussed.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 20, 1; 21-27
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Biokinetics and radiation dosimetry for [4-14C] cholesterol in humans
Autorzy:: Marcato, L. A.
Hamada, M. M.
de Mesquita, C. H.
Powiązania:: https://bibliotekanauki.pl/articles/146882.pdf
Data publikacji:: 2012
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: [4-14C]-cholesterol
internal dosimetry
dosimetric model
medical internal radiation dose (MIRD)
Opis:: This study proposes a biokinetic model for using in the assessment of the internal dose received by human subjects administered intravenously or orally with [4-14C]-cholesterol. The proposed model includes three systemic pools representing the short-term (T1/2 = 1 d), intermediate-term (T1/2 = 16 d) and long-term (T1/2 = 78 d) physiological exchanges and two excretion pathways: urine and feces. To validate the model, the predicted excretion and absorption of cholesterol was compared with that described in the literature. The radiometric doses were calculated in function of the phantom body mass (M) applying MIRD (medical internal radiation dose) protocol with ANACOMP software. The effective dose coefficients for oral administration were: 2.93×10–10 Sv.Bq–1 (73.3 kg); 3.84×10–10 Sv.Bq–1 (56.8 kg); 6.74 × 10–10 Sv.Bq–1 (33.2 kg) and 7.72 × 10–10 Sv.Bq–1 (19.8 kg). To determinate the dose for intermediate body mass M the polynomial interpolation can be used: Sv.Bq–1 (kg) = 6 × 10–15M3 – 8 × 10–13M2 + 2 × 10–11M + 6 × 10–10 (R2 ≅ 1). In the same way, for intravenous administration were: 3.72 × 10–10 Sv.Bq–1 (73.3 kg); 4.87 × 10–10 Sv.Bq–1 (56.8 kg); 8.49 × 10–10 Sv.Bq–1 (33.2 kg); 1.26 × 10–9 Sv.Bq–1 (19.8 kg). Similarly, for any M body mass: Sv.Bq–1 (kg) = –4 × 10–15M3 + 9 × 10–13M2 – 7 × 10–11M + 2 × 10–9 can be used.
Źródło:: Nukleonika; 2012, 57, 4; 607-613
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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