scholarly journals Entrance dose determination and effective dose calculation in chest and skull radiographies: an experimental and computational study

2021 ◽  
Vol 19 (4) ◽  
pp. 899-906
Author(s):  
F. Panahi ◽  
M. Mohammadi ◽  
F. Naserpour ◽  
N. Hassanpour ◽  
M. Gholami ◽  
...  
Keyword(s):  
Effective Dose ◽  
Computational Study ◽  
Dose Calculation ◽  
Dose Determination ◽  
Entrance Dose

scholarly journals A new method for effective dose calculation based on the ambient dose height distribution

2017 ◽  
Vol 3 (2) ◽  
pp. 147-149
Author(s):  
Mario Liebmann ◽  
Niroojiny Sangarapillai ◽  
Björn Poppe ◽  
Heiner von Boetticher
Keyword(s):  
Effective Dose ◽  
Direct Determination ◽  
Dose Calculation ◽  
Gender Effects ◽  
Height Distribution ◽  
Wide Range ◽  
Personal Dosimetry ◽  
And Gender ◽  
Ambient Dose

AbstractThe realistic determination of effective dose of the staff in diagnostic radiology has been a challenge both for personal dosimetry and ambient dose measurement. A model for dosimetry of occupational exposure is presented that allows direct determination of effective dose from measured or even manufacturer given ambient dose distribution in front of the personnel. This model considers a wide range of radiation energies, different radiation protection situations, and gender effects.

scholarly journals Assessment of the doses to the population of the regions of Russia from exposure to the cosmic radiation

2019 ◽  
Vol 12 (3) ◽  
pp. 78-83
Author(s):  
D. V. Kononenko ◽  
T. A. Kormanovskaya
Keyword(s):  
Effective Dose ◽  
Cosmic Radiation ◽  
Annual Effective Dose ◽  
Weighted Average ◽  
Dose Calculation ◽  
Average Value ◽  
Effective Doses ◽  
Refined Calculation ◽  
Average Individual ◽  
Regions Of Russia

The paper presents the results of a refined calculation of the average individual annual effective doses to the population of the regions of Russia from exposure to the cosmic radiation. The population-weighted average values of the altitude and latitude of the main settlements, which are home to at least 50 percent of the population of the region, were used as the altitude and latitude of the region. In addition, all settlements with a population of at least 20 thousand people were included in the calculation. Coverage of the population of the regions of Russia in the calculation varies from 50.1 to 95.8 percent (excluding three cities of Federal importance with 100 percent coverage) with the average value of 62.4 percent. The number of settlements included in the calculation in different regions ranges from 1 to 63. The methodology of the dose calculation is based on the approach described in the UNSCEAR 2000 Report. The obtained dose values for different regions range from 0.310 to 0.413 mSv. For Russia as a whole country, the population-weighted average individual annual effective dose from exposure to the cosmic radiation is 0.338 mSv.

scholarly journals REVIEW OF METHODIC INSTRUCTIONS AND RECOMMENDATIONS FOR EVALUATION OF ANNUAL EFFECTIVE DOSE TO HUMAN BEING IN CASES OF LIVING AT RADIOACTIVE CONTAMINATED AREAS

2021 ◽  
pp. 57-69
Author(s):  
A. V. Toporova ◽  
Yu. V. Baklanova ◽  
Yu. G. Strilchuk ◽  
A. N. Shatrov
Keyword(s):  
Effective Dose ◽  
Annual Effective Dose ◽  
Dose Calculation ◽  
Test Site ◽  
Dose Assessment ◽  
Human Being ◽  
Calculation Methods ◽  
Artificial Radionuclides ◽  
Semipalatinsk Test Site ◽  
Basic Approaches

The proposed paper provides a review of recommendations, methodic instructions and software for evaluation of exposure doses to population domiciling radioactive contaminated territories. There is a review of dose calculation methods which are most common in neighbouring countries and beyond. The paper presents basic approaches, factors required for dose assessment with review of main pathways for artificial radionuclides intake. It addresses the need to develop methodic instructions and software for the cases of people living at Semipalatinsk test site area.

Analisis Reduksi Dosis Efektif Mata Pada Fantom Menggunakan TLD Mata dengan Implementasi Software Organ Dose Modulation (ODM) dan Eyeshield pada Protokol CT Kepala dengan Alat GE Revolution Evo 128 Slice

2021 ◽  
Vol 1 (1) ◽  
pp. 26-30
Author(s):  
Dito Andi Rukmana ◽  
◽  
Veronika Saron Kamantuh ◽  
Bambang Dwinanto ◽  
Lutfiana Desy Saputri
Keyword(s):  
Image Quality ◽  
Ct Scan ◽  
Effective Dose ◽  
Research Method ◽  
Dose Calculation ◽  
Organ Dose ◽  
Head Ct ◽  
Affect Image Quality ◽  
Dose Modulation

The eye is one of the sensitive organs that need attention in the head CT-Scan. This study aims to reduce the effective eye dose on a head CT-Scan using ODM (Organ Dose Modulation) software and use eyeshield on the phantom. The study was conducted using a CT-Scan tool GE Revolution Evo 128 Slice. The research method was carried out by placing three pairs of eye TLDs (Hp3 Dosimeters) on the phantom for the three examination configurations, CT-Scan standard (routine) examinations, examinations using ODM software, and examinations using ODM software and eyeshield. The estimated effective dose calculation based on TLD reading for the eye lens on a standard CT-Scan (routine) is 1.29 mSv. Examination with ODM software is 1.03 mSv. Examination with ODM software and eyeshield of 0.9 mSv. Based on the results obtained, a head CT-Scan with ODM software can reduce the dose by 20% from a routine head CT-Scan, and if added with an eyeshield, it can reduce the dose by 30%. The quality of the image produced by implementing ODM software, SNR value decreased from 39 to 35 in the anterior phantom, central and posterior parts remained. However, the change in SNR value is not significant, so it does not change the image quality. Furthermore, the addition of eyeshield does not alter the SNR value, which means that the addition eyeshield does not cause artifacts that affect image quality. Using ODM and eyeshield software is indeed a little more complicated than a routine head CT-Scan. Still, the benefits obtained are pretty significant, reducing the effective dose received by the eye without reducing image quality.

Effective Dose Calculation in the VVER-440 Maintenance Area

2020 ◽  
Author(s):  
F. Osuský ◽  
V. Necas ◽  
B. Vrban
Keyword(s):  
Effective Dose ◽  
Dose Calculation
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