Results 41 to 50 of about 6,277 (213)

Evaluation of radiation exposure in open dental clinics using thermoluminescence dosimeters and questionnaires

Contemporary Clinical Dentistry, 2021
Aim: The aim of this study was to evaluate radiation exposure in dental open clinics in King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS) using thermoluminescence dosimeters (TLDs) to check if it exceeds the annual assigned exposure limit ...
Bahija T Basheer, Renad I Allahim, Samar S Alarfaj, Tala A Alkharashi, Amal A Fallatah, Amerah S Alqahtani, Shuruq S Aljarallah   +6 more
doaj   +1 more source

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

Energy Science &Engineering, EarlyView.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi, Seyed Esmail Razavi, Shams Forruque Ahmed, Khashayar Fardnia, Aydin Qheydarpoor, Hammad Alotaibi   +5 more
wiley   +1 more source

Patient Dose Optimisation of Abdominopelvic Protocols During X‐Ray Imaging

Journal of Medical Radiation Sciences, EarlyView.
This study evaluates organ doses in abdominopelvic radiography for both erect and supine positions, addressing dose optimisation concerns in Ghana. Using CalDose X and thermoluminescence dosimeters, organ doses and image quality were analysed, revealing significant dose reductions with optimised exposure parameters (70 kVp, 10 mAs, 110 cm FDD).
Emmanuel Ekem‐Ferguson, Shirazu Issahaku, Mark Pokoo‐Aikins, Mary Boadu   +3 more
wiley   +1 more source

Comparative Evaluation of Four Stereotactic Radiosurgery Planning Approaches for Treatment of Posterior Choroidal Melanoma

Journal of Medical Radiation Sciences, EarlyView.
This study evaluated four stereotactic radiosurgery planning approaches for posterior choroidal melanoma (CM). Analysis of thirteen CM cases resulted in a clinically meaningful reduction in dose to the brain for Brainlab Elements modulated arcs (BE) and Varian Eclipse HyperArc modulated arcs (HA) compared to Brainlab iPlan dynamic conformal arc therapy
Robert Nigro, Kenton Thompson, Cathy Markham, Adam U. Yeo, Daniel Sapkaroski, Claire Phillips   +5 more
wiley   +1 more source

Investigation of the Entrance Surface Dose and Dose to Different Organs in Lumbar Spine Imaging

Journal of Biomedical Physics and Engineering, 2014
Background: Dose assessment using proper dosimeters is especially important in radiation protection optimization and imaging justification in diagnostic radiology.
Sina S, Zeinali B, Karimipoorfard M, Lotfalizadeh F, Sadeghi M, Zamani E, Faghihi R   +6 more
doaj  

Two-Lane DNN Equalizer Using Balanced Random-Oversampling for W-Band PS-16QAM RoF Delivery over 4.6 km

Sensors, 2023
For W-band long-range mm-wave wireless transmission systems, nonlinearity issues resulting from photoelectric devices, optical fibers, and wireless power amplifiers can be handled by deep learning equalization algorithms. In addition, the PS technique is
Sicong Xu, Bohan Sang, Lingchuan Zeng, Li Zhao   +3 more
doaj   +1 more source

Radiation Safety in Practice: A Cross‐Sectional Study on Radiographers' Knowledge, Awareness and Adherence to Personal Radiation Monitoring Devices in Resource Limited Settings

Journal of Medical Radiation Sciences, EarlyView.
This study examined how well radiographers in five major Namibian state hospitals understand and use Personal Radiation Monitoring Devices (PRMD), a critical tool for occupational safety. While most respondents showed strong knowledge and awareness of PRMDs, many were unaware of their own radiation exposure and rarely reviewed their dose records ...
Lindiwe Hungwe, Moneni Shilumba
wiley   +1 more source

Comparison of dosimeter response of TLD-100 and ionization chamber for high energy photon beams at KIRAN Karachi in Pakistan

The Egyptian Journal of Radiology and Nuclear Medicine, 2017
This study was conducted by measuring point dose at different depths of water phantom by using two types of dosimeters (PTW N30013 ionization chamber and TLD-100 chips) at Karachi institute of radiotherapy and nuclear medicine (KIRAN), Pakistan.
Muhammad Waqar, Asdar Ul-Haq, Syed Bilal, M. Masood   +3 more
doaj   +1 more source

Technique considerations for implementing volumetric‐modulated arc therapy for total body irradiation within an Australian tertiary institution

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 165-172, March 2025.
In 2020, our institution transitioned to the Eclipse™ treatment planning system and to Truebeam® linear accelerators with 6 MV and 10 MV energies. The linear accelerators were installed in smaller bunkers that could not accommodate 400 cm FAD. A multidisciplinary team within the institution was created to evaluate existing total body irradiation ...
Gabriella La Macchia, Clare Wan, Joshua Dass, Mandy Taylor, Gabor Neveri, Malgorzata Skorska   +5 more
wiley   +1 more source

Patient dose analysis in total body irradiation through in vivo dosimetry

Journal of Medical Physics, 2012
Total body irradiation (TBI) is a special radiotherapy technique, administered prior to bone marrow transplantation. Due to the complex nature of the treatment setup, in vivo dosimetry for TBI is mandatory to ensure proper delivery of the intended ...
K Ganapathy, P. G. G. Kurup, V Murali, M Muthukumaran, N Bhuvaneshwari, J Velmurugan   +5 more
doaj   +1 more source