background marketing new radiography devices necessitates documenting their absorbed x-ray doses. since the current literature lacks studies on new devices, we assessed the doses of two new devices that had not previously been assessed. objectives the new devices were compared to the promax three dimensional (3d) scanner at two fields of view (fov) in nine critical head and neck tissues and org...

INTRODUCTION The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence from the surrounding area. OBJECTIVE A 3D setting of TLD cards has been calibrated isotropically in a standard radiation field to evaluate the improvement of the accuracy of meas...

UNLABELLED Clinical PET of apoptosis may have substantial value in advancing patient care. We report here the first-in-humans study with (18)F-labeled 2-(5-fluoropentyl)-2-methyl malonic acid ((18)F-ML-10), a small-molecule PET tracer for apoptosis. Presented are the dosimetry, biodistribution, stability, and safety profiles of this PET tracer in healthy human volunteers. Also reported is trace...

background: the goals of the present research were to investigate the rectal dose during four chosen techniques of cervical cancer radiotherapy and to examine how accurately the treatment planning represents dose measurements, and it’s practicality for routine use as well as, to determine the homogeneity of dose in tumor volume. materials and methods: the study was carried out using a nepton 10...

For field research of non-visual effects light, accurate measurement personal light exposure is required. A consensus framework for light-dosimetry could improve and ensure comparability between studies. Here, we present a review methodologies used in studies published to date, focussing on considerations regarding the preparation data. Overall, large variability studies’ observed, highlighting...

In-vivo dosimetry techniques are currently being applied only by a few Centers because they require time-consuming implementation measurements, and workload for detector positioning and data analysis. The transit in-vivo dosimetry performed by the electronic portal imaging device (EPID) avoids the problem of solid-state detector positioning on the patient. Moreover, the dosimetric characterizat...

background: this work investigated the dosimetry limitations of the random and systematic uncertainties of sliding window (sw) intensity modulated radiation therapy (imrt). materials and methods: a varian 21ex linear accelerator, pinnacle3 treatment planning system and radiographic film dosimetry was used. the limitations of the sw were studied using beam modulation ranging from 2 to 100 mu/bea...

Organized by Working Group 6 “Computational Dosimetry” of the European Radiation Dosimetry (EURADOS), a group intercomparison exercises was conducted in which participants were asked to solve predefined problems computational dosimetry. The results these comparisons published series articles this virtual special issue Measurements. This paper reviews experience gained from various and highlight...

The solid state active detectors, widely used for conventional radiotherapy, such as diamond detectors (DD) and diodes may be attractive tools also in dosimetry of therapeutic proton beams. Diodes are broadly applied in oncology clinics and routinely used for in-vivo dosimetry [1, 8]. These real-time detectors are rugged, relatively inexpensive and provide on-line readings, what allows for quic...