Results 81 to 90 of about 13,282 (218)

Effect of thyroid shielding during mammography : measurements on phantom and patient as well as estimation with Monte Carlo simulation [PDF]

open access: yes, 2018
Background: During mammography, the thyroid is exposed to scattered radiation from breast tissue and device. This may increase the risk of radiation induced thyroid cancer. Methods: We investigated the scatter radiation exposition of the thyroid and the
Eschle, Patrik   +5 more
core   +1 more source

Robot‐assisted ultrasound‐guided PCNL: initial experience in 10 consecutive cases

open access: yes
BJU International, Volume 137, Issue 5, Page 788-790, May 2026.
Andrew Amenyogbe   +3 more
wiley   +1 more source

A seed specific dose kernel method for low-energy brachytherapy dosimetry. [PDF]

open access: yes, 2003
We describe a method for independently verifying the dose distributions from pre- and post-implant brachytherapy source distributions. Monte Carlo calculations have been performed to characterize the three-dimensional dose distribution in water phantom ...
Agazaryan, Nzhde   +2 more
core   +1 more source

Madžarska v luči obiska turistov iz Slovenije – prostorska razporeditev turističnega prometa in spletne ponudbe

open access: yesDela, 2017
V prispevku so predstavljene poglavitne značilnosti potovanj turistov iz Slovenije na Madžarsko. Uvodoma je podan pregled ključnih turističnih kazalcev te države, ki se v nadaljevanju podrobneje osredotoči na turiste iz Slovenije in njihovo vlogo v ...
Miha Koderman   +2 more
doaj   +1 more source

A simple device for the measurement of kerma based on commercial PIN photo diodes

open access: yesEPJ Web of Conferences, 2012
The development of a dose reader for the measurement of the radiation dose from neutron and ionizing radiation is presented. The dose reader (kerma meter) is using as active element commercial PIN diodes with long base, which can provide a maximal ...
Kushpil S., Kushpil V., Huna Z.
doaj   +1 more source

Portable Gamma Irradiation System with Co, Ba, Cs, and Co for On-site Calibration of Environmental Radiation Monitoring Devices [PDF]

open access: yesJournal of Radiation Protection and Research
Background A portable gamma irradiation system was developed for on-site calibration of environmental radiation monitoring devices. This system uses a portable collimator and gamma-ray sources such as 57Co, 133Ba, 137Cs, and 60Co, each with a nominal ...
Masahiro Kato   +4 more
doaj   +1 more source

The Ratio between Absorbed Dose, Kerma and Ionization Kerma for Small-size Fields

open access: yesMedical Radiology and radiation safety, 2019
Purpose: Research of the relationships between spatial distributions in water of the main dosimetric values, namely the absorbed dose, kerma and ionization kerma, for small-size fields with a circular cross section created by divergent beams of bremsstrahlung spectrum with a maximum energy of 6 MeV. Material and methods: Using the Monte-Carlo ...
M. Kolyvanova   +2 more
openaire   +1 more source

Analisa Pengaruh Faktor Eksposi Terhadap Entrance Surface Air Kerma (Esak) [PDF]

open access: yes, 2014
The research has been analyzed of the effect of exposure factors at the entrance surface air kerma (ESAK) of the thorax radiographs. This research uses anthropomorphic phantom, multipurpose detectors, FFD 100 cm, with radiation field 25 cm × 25 cm ...
Arifin, Z. (Zaenal)   +2 more
core  

Methodology study for determining the half-value layer using the Monte Carlo code PHITS

open access: yesBrazilian Journal of Radiation Sciences
For most purposes, the quality of a beam can be specified in terms of the half-value layer (HVL), which is the thickness of material required to reduce the air kerma  to half, at one meter from the source, from a unidirectional beam of infinitesimal ...
Ronald Soares, Marco Aurélio Lacerda
doaj   +1 more source

An Approach to Establishing Diagnostic Reference Levels in Interventional Pediatric Cardiology from Different Regions of Brazil

open access: yesChildren
Diagnostic reference levels (DRLs) are a pivotal strategy to be implemented since pediatric interventional cardiology procedures are increasing. This work aimed to propose an initial set of Brazilian DRLs for pediatric interventional diagnostic and ...
Viviane K. Asfora   +13 more
doaj   +1 more source

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