Effectiveness of Al2O3:C OSL dosimeter towards entrance surface dose measurement in common X-ray diagnostics

Background: Radiography examinations are the most widely used and indispensable tools in medical imaging. The dose received by the patient should be known to prevent the risk of radiation exposure. Patient dose in radiography examination can be best estimated in terms of entrance surface dose (ESD). ESD value can be obtained by using the recorded dose viewer installed on the device. However, not all devices have this feature. Other methods can be conducted using thermoluminescence dosimeter (TLD) although it practically requires a high cost. Purpose: The study aims to estimate the ESD as a dose profile for patients undergoing radiography examination using tube output. Method: The patient data and exposure factors were retrospectively recorded for 263 patients. The ESD was estimated from the measurements of the X-ray tube output and recorded exposure factors. Results: The ESD value varied from 0.002 to 0.41 mGy. In the thorax PA, thorax LAT, cervical LAT, cervical AP, skull AP, skull LAT, genu LAT and waters was found (0,23±0.05) mGy, (0,09±0,05) mGy, (0,07±0,04) mGy, (0,13±0,08) mGy, (0,03±0,01) mGy, (0,06±0,02) mGy, (0,04±0,00) mGy (0,04±0,02) mGy, respectively. These results were further used to determine the Local Diagnostic Reference Level (LDRL) value. Conclusion: The results revealed that LDRL fell below the national DRL value and international reference

Download Full-text

A feasibility study on reduction of the entrance-surface dose to neonates by use of a new digital mobile X-ray system

Radiological Physics and Technology ◽

10.1007/s12194-012-0182-1 ◽

2012 ◽

Vol 6 (1) ◽

pp. 157-161 ◽

Cited By ~ 3

Author(s):

Satoru Utsunomiya ◽

Hajime Monzen ◽

Mami Akimoto ◽

Nobutaka Mukumoto ◽

Yoshitomo Ishihara ◽

...

Keyword(s):

Feasibility Study ◽

Surface Dose ◽

X Ray ◽

Entrance Surface Dose

Download Full-text

Nanodot Optically Stimulated Luminescence Dosimeter for Entrance Surface Dose measurement at selected Health Clinic in Perak, Malaysia

Journal of Physics Conference Series ◽

10.1088/1742-6596/1921/1/012116 ◽

2021 ◽

Vol 1921 ◽

pp. 012116

Author(s):

M.T Saidin ◽

A A Rahman ◽

Y M Radzi ◽

H H Harun ◽

M K A Karim

Keyword(s):

Optically Stimulated Luminescence ◽

Health Clinic ◽

Surface Dose ◽

Dose Measurement ◽

Entrance Surface Dose

Download Full-text

Patient dosimetry in diagnostic radiology

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp0301036c ◽

2003 ◽

Vol 18 (1) ◽

pp. 36-41 ◽

Cited By ~ 6

Author(s):

Olivera Ciraj-Bjelac ◽

Srpko Markovic ◽

Dusko Kosutic

Keyword(s):

Survey Data ◽

Diagnostic Radiology ◽

Surface Dose ◽

Reference Levels ◽

Organ Doses ◽

X Ray ◽

Entrance Surface Dose ◽

National Quality ◽

Effective Doses ◽

The Impact

The objective of this work is to assess patient organ doses, effective doses and entrance surface doses in conventional diagnostic radiology procedures for standard adult patient. The survey consists of measurements of doses delivered to 239 patients in nine types of X-ray examinations. Three types of data were collected: X-ray machine data, patient data, and output measurements. Entrance surface dose was assessed based on the survey data and subsequently, using conversion coefficients, the organ doses and effective doses were calculated. Values of the entrance surface dose and the effective dose were estimated to be 0.4 to 5.8 mGy and 0.03 to 3.00 mSv for different examinations. Derived doses were compared with recommended general diagnostic reference levels. The impact of examination parameters on dose values was discussed. Except for posterior-anterior chest examination, all estimated doses are lower than stated reference levels. Survey data are aimed at helping development of national quality control and radiation protection programmed for medical exposures.

Download Full-text