Advertisement

Topics

Real-time dosimetry with radiochromic films.

08:00 EDT 29th March 2019 | BioPortfolio

Summary of "Real-time dosimetry with radiochromic films."

Radiochromic film dosimetry has been widely employed in most of the applications of radiation physics for over twenty years. This is due to a number of appealing features of radiochromic films, such as reliability, accuracy, ease of use and cost. However, current radiochromic film reading techniques, based on the use of commercial densitometers and scanners, provide values of dose only after the exposure of the films to radiation. In this work, an innovative methodology for the real-time reading of radiochromic films is proposed for some specific applications. The new methodology is based on opto-electronic instrumentation that makes use of an optical fiber probe for the determination of optical changes of the films induced by radiation and allows measurements of dose with high degree of precision and accuracy. Furthermore, it has been demonstrated that the dynamic range of some kinds of films, such as the EBT3 Gafchromic films (intensively used in medical physics), can be extended by more than one order of magnitude. Owing to the numerous advantages with respect to the commonly used reading techniques, a National Patent was filed in January 2018.

Affiliation

Journal Details

This article was published in the following journal.

Name: Scientific reports
ISSN: 2045-2322
Pages: 5307

Links

DeepDyve research library

PubMed Articles [12648 Associated PubMed Articles listed on BioPortfolio]

Spectral analysis of the EBT3 radiochromic films for clinical photon and electron beams.

To investigate the spectral response of the EBT3 radiochromic films to different beam qualities for radiation therapy dosimetry. Dose, dose rate, and inter-batch dependencies on the spectral response ...

Microstructure Changes in Radiochromic Films Due To Magnetic Field and Radiation.

To correlate the dose response and changes in microscopic structures of the radiochromic films exposed to the clinical magnetic field in the range 1.5-3T with standard and flattening filter-free (FFF)...

Synchrotron Radiation Applied to Real Time Studies of the Kinetics of Growth of Aluminum Nitride Thin Multilayers.

This article reports the design, construction and first use of an experimental device consisting of a specially designed vacuum chamber equipped with a reactive sputtering magnetron (RSM) to be used f...

Radiochromic EBT2 and EBT3 sensitometry based on growth of two color phases of the polymer.

The aim of this work is to develop a sensitometry model of EBT2 and EBT3 radiochromic films based on the observation that radiation induces growth of two polymer color phases.

Comparison of detector performance in small 6 MV and 6 MV FFF beams using a Versa HD accelerator.

Investigate the applicability of a series of detectors in small field dosimetry and the possible differences between their responses to FF and FFF beams. This work extends upon the series of detectors...

Clinical Trials [3763 Associated Clinical Trials listed on BioPortfolio]

Selective Retina Therapy With Real-Time Feedback-Controlled Dosimetry for Treating Acute Idiopathic Central Serous Chorioretinopathy in Korean Patients

Selective retina therapy (SRT) selectively disrupts the retinal pigment epithelium (RPE) with minimal damage to the photoreceptors. Previous studies have shown SRT to be effective for reso...

Simplification of Low Level Internal Dosimetry

This is a pilot study with the primary aim being to identify the minimum number of scans and measurements necessary to determine accurately the absorbed radiation doses delivered from inte...

I-124 and I-131 Radiopharmacokinetics in DTC Patients With Thyroid Hormone Withdrawal

This research study is to compare the radiopharmacokinetics of I-124 to the radiopharmacokinetics of I-131 in patients who have well-differentiated thyroid cancer after thyroid hormone wit...

Safety and Efficacy Study of NH004 Films for Relief of Sialorrhea Symptoms in Parkinson's Disease Patients

The primary goal of the study is to evaluate the safety and potential efficacy of intra-oral dissolvable NH004 films to improve the short-term symptoms of sialorrhea (drooling) in Parkinso...

Alpharadin™ Safety and Dosimetry With HRPC That Has Metastasized to the Skeleton

The purpose of the study is to investigate the safety, biodistribution, radiation dosimetry and pharmacokinetics of three intravenous escalating dose levels of Alpharadin.

Medical and Biotech [MESH] Definitions

Ultrasonography applying the Doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the Doppler shift frequency.

Works consisting of nonfiction films and video designed to teach, instruct, or train. (From Moving Image Materials: Genre Terms, 1988)

Works consisting of films, videos, and programs which depict actual persons or actual events. They do not include frank historical re-creations and do not attempt to judge the truth of the depiction in a film purporting to be factual or documentary in character. (From Moving Image Materials: Genre Terms, 1988)

Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.

Surgical procedures conducted with the aid of computers. This is most frequently used in orthopedic and laparoscopic surgery for implant placement and instrument guidance. Image-guided surgery interactively combines prior CT scans or MRI images with real-time video.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article