نتایج جستجو برای: film dosimetry

تعداد نتایج: 98429  

Journal: :Medical physics 2007
David S Followill DeeAnn Radford Evans Christopher Cherry Andrea Molineu Gary Fisher William F Hanson Geoffrey S Ibbott

The Radiological Physics Center (RPC) developed two heterogeneous anthropomorphic quality assurance phantoms for use in verifying the accuracy of radiation delivery: one for intensity-modulated radiation therapy (IMRT) to the pelvis and the other for stereotactic body radiation therapy (SBRT) to the thorax. The purpose of this study was to describe the design and development of these two phanto...

Journal: :Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2006
Robert P Kollaard Wim J F Dries Herman J van Kleffens Tony H L Aalbers Hans van der Marel Hans P A Marijnissen Marleen Piessens Dennis R Schaart Henk de Vroome

BACKGROUND AND PURPOSE It is estimated that one third of the institutes applying clinical beta sources does not perform independent dosimetry. The Netherlands commission on radiation dosimetry (NCS) recently published recommended quality control procedures and detectors for the dosimetry of beta sources. The main issues of NCS Report 14 are summarized here. MATERIALS AND METHODS A dosimetry s...

2014
Wei Loong Jong Jeannie Hsiu Ding Wong Ngie Min Ung Kwan Hoong Ng Gwo Fuang Ho Dean L. Cutajar Anatoly B. Rosenfeld

In vivo dosimetry is important during radiotherapy to ensure the accuracy of the dose delivered to the treatment volume. A dosimeter should be characterized based on its application before it is used for in vivo dosimetry. In this study, we characterize a new MOSFET-based detector, the MOSkin detector, on surface for in vivo skin dosimetry. The advantages of the MOSkin detector are its water eq...

Journal: :Applied sciences 2021

The aim of this study was to develop and apply an evaluation method for assessing the accuracy a novel 3D EPID back-projection algorithm in vivo dosimetry. Dosimetry Check (DC) 5.8 evaluated. A slab phantom homogeneously filled, or with air bone inserts, used fluence reconstruction different squared fields. VMAT plans anatomical sites were delivered on anthropomorphic phantom. Dose distribution...

Journal: :Japanese Journal of Radiological Technology 1978

Journal: :Brazilian Journal of Radiation Sciences 2021

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