At the Institute of Nuclear Physics in Kraków (INP), in collaboration with the Centre of Oncology in Kraków, several types of miniature thermoluminescent LiF:Mg,Ti and LiF:Mg,Cu,P detectors specially designed for clinical dosimetry in radiotherapy have been developed. The detectors are manufactured in the form of solid pellets of diameter down to 1 mm and typical thickness 0.5 mm, in the form of rods with a diameter of 0.5 mm and a length of a few mm, and as two-layer detectors with a thin (in the range of 0.065 mm) active layer of high-sensitive LiF:Mg,Cu,P. All three types of newly developed detectors have already been applied in proton beam dosimetry, surface dosimetry of eye-plaque brachytherapy applicators, phantom dosimetry for vascular brachytherapy and in vivo dosimetry in interstitial brachytherapy. These detectors were found to be very useful for dose measurements in high dose gradients, where spatial resolution better than 1 mm is required.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/oxfordjournals.rpd.a006030 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A custom-made integrated system for thermoluminescence and radioluminescence spectroscopy.
Appl Radiat Isot
December 2024
Instituto de Física, Universidade de São Paulo (USP), São Paulo SP, Brazil. Electronic address:
Thermoluminescence (TL) and Radioluminescence (RL) are widely used in dosimetry applications. We present a custom-built integrated system, designated LUMI22, for measuring TL, TL spectroscopy, RL, and RL as a function of temperature. LUMI22 includes a heating system based on Kanthal® A1 alloy (FeCrAl), a microcontroller to regulate the temperature ramps (e.
View Article and Find Full Text PDFTime course and local distribution of skin exposure of hand and fingers from [68Ga]Ga-DOTA-NOC synthesis using a self-shielded module.
Nuklearmedizin
August 2020
Department of Radiology and Nuclear Medicine, University Hospital Magdeburg and Medical Faculty of Otto-von-Guericke University, Magdeburg, Germany.
Aim: The study examined the local dose distribution as well as the time course of skin exposure of hand and fingers from [Ga]Ga-DOTA-NOC synthesis using a self-shielded synthesis module.
Methods: A compact calibrated electronic dosimeter (ED) with a miniaturized probe was used for real-time measurements of skin dose equivalent H (0.07) (reference point: left and right index finger).
Design and dosimetry of a facility to study health effects following exposures to fission neutrons at low dose rates for long durations.
Int J Radiat Biol
July 2024
Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.
Purpose: During extended missions into deep space, astronauts will be exposed to a complex radiation field that includes high linear energy transfer (LET) radiation from high energy, heavy ions (HZE particles) at low dose rates of about 0.5 mGy/d for long durations. About 20% of the dose is delivered by ions with LET greater than 10 keV/m.
View Article and Find Full Text PDFMICRODOSIMETRIC MODELING OF THE RELATIVE LUMINESCENCE EFFICIENCY OF LiF:Mg,Cu,P (MCP) DETECTORS EXPOSED TO CHARGED PARTICLES.
Radiat Prot Dosimetry
May 2019
Belgian Nuclear Research Centre SCK•CEN, Radiation Protection Dosimetry and Calibration Expert Group, Boeretang, Mol, Belgium.
Using a recently developed microdosimetric model based on the Monte Carlo code PHITS, the relative luminescence efficiency of LiF:Mg,Cu,P (MCP) thermoluminescent detectors to charged particles from 1H to 132Xe with energies from 3 to 1000 MeV/u has been assessed. The results have been compared with literature data showing very good agreement for particles from 12C to 132Xe in case of model calculations performed in a site size of 40 nm. For 1H and 4He ions, the model overestimates the experimental values by ~10%.
View Article and Find Full Text PDFIn vivo TLD dose measurements in catheter-based high-dose-rate brachytherapy.
Radiat Prot Dosimetry
July 2015
Physics Department, Kaunas University of Technology, Studentų g. 50, LT-51368 Kaunas, Lithuania.
Routine in vivo dosimetry is well established in external beam radiotherapy; however, it is restricted mainly to detection of gross errors in high-dose-rate (HDR) brachytherapy due to complicated measurements in the field of steep dose gradients in the vicinity of radioactive source and high uncertainties. The results of in vivo dose measurements using TLD 100 mini rods and TLD 'pin worms' in catheter-based HDR brachytherapy are provided in this paper alongside with their comparison with corresponding dose values obtained using calculation algorithm of the treatment planning system. Possibility to perform independent verification of treatment delivery in HDR brachytherapy using TLDs is discussed.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!