Showing papers in "Applied Radiation and Isotopes in 2014"

TL;DR: The view that controlled and prospective clinical trials with a modern design will make BNCT an evidence-based treatment modality within the coming decade is supported.

TL;DR: Excitation functions were calculated by the code TALYS for 10 proton-induced reactions on (100)Mo and for those two reactions and (nat)Mo(p,x)(96)Tc, evaluation of available experimental data was also carried out.

TL;DR: From the analysis of the naturally occurring radionuclides used as building materials in Tiruvannamalai, India, it is found that these materials used for the construction of dwellings are safe for the inhabitants.

TL;DR: A project team headed by University of Tsukuba launched the development of a new accelerator based BNCT facility by adopting Radio-Frequency Quadrupole+Drift Tube Linac type linac as proton accelerators and developing a new multi-modal Monte-Carlo treatment planning system based on JCDS.

TL;DR: Experimental data confirm the predicted activity for both cases which proves that photonuclear reactions can be used to produce radioisotopes.

TL;DR: The full modulation transfer function (MTF) was measured and those spatial frequencies corresponding to a contrast loss of 50% were determined as a function of different applied X-ray tube parameters and magnification-dependent pixel sizes.

TL;DR: Around 95% of mass was reconstructed using the concentration of elements in this study for fly and bottom ash, and various indices such as element enrichment ratio, enrichment factor and mineral composition were calculated.

TL;DR: BNCT is effective and safe in the patients with recurrent SCC and locally advanced non-SCC, and no severe acute or chronic normal-tissue reactions were observed in any patients.

TL;DR: Until recently, iodine-124 was not considered to be an attractive isotope for medical applications owing to its complex radioactive decay scheme, which includes several high-energy gamma rays, but the development of new medical imaging techniques, especially improvements in the technology of positron emission tomography (PET), has opened up new prospects for its application.

TL;DR: It is demonstrated that polymer vesicles (i.e. polymersomes) can retain recoiling daughter nuclei based on an experimental study examining the retention of (221)Fr and (213)Bi when encapsulating (225)Ac.

TL;DR: The thermalization of low-energy positrons in water is discussed and the sensitivity of the profiles to the form of the cross-sections in this energy region, and assumptions in the microscopic processes, is considered.

TL;DR: The aim of this paper is to give a selected review on the preparation methods of the most popular and commercially available phosphors as well as those less used or "homemade" for special studies.

TL;DR: The calculation of axial neutron flux distributions with the MCNP code at the JSI TRIGA Mark II reactor has been validated with experimental measurements of the (197)Au(n,γ)(198)AU reaction rate and the calculated absolute reaction rate values are in good agreement with the experimental results.

TL;DR: The topics will cover: intense ion sources, accelerator tubes, transport of intense beams, beam diagnostics, the (9)Be(d,n) reaction as a possible neutron source, Beam Shaping Assemblies (BSA), a treatment room, and treatment planning in realistic cases.

TL;DR: The dead-layer uniformity of the top surface of two high purity germanium detectors has been studied using a novel automated scanning set-up that allows a fine-grained topography of a detector's top and lateral surfaces.

TL;DR: An extensive intra-comparison of profiles obtained by a large selection of existing and well-documented Monte-Carlo codes, namely, EGSnrc, PENELOPE, CPA100, FLUKA and MCNPX are reported.

TL;DR: In the nonhyperplastic prostates of males in the sixth to ninth decades, the magnitude of mass fractions of all chemical element were maintained at near constant levels, and the finding of correlation between the prostatic chemical element mass fractions indicates that there is a great variation of chemical element relationships with age.

TL;DR: The existing linear accelerator at the Institute for Nuclear Research (Moscow-Troitsk) and several prospective installations are considered to be particularly capable of providing mass production of radionuclides that can substitute, to a certain extent, for the traditional medical isotopes.

TL;DR: The TL glow curve of the Ti-doped material featured a single prominent peak at 230 °C, and the trap parameters, such as the kinetics order, activation energy, and frequency factor, which are related to the glow peak, were determined using TolAnal software.

TL;DR: The present study concluded that heavy minerals induce the (238)U and (232)Th concentrations and light mineral (calcite) controls the (40)K concentration, while clay content also induces the important radioactive variables.

TL;DR: Fractionated BNCT at 30-day interval with adaptive planning according to changed T/N ratios was feasible, effective and safe for selected recurrent head and neck cancer in this trial.

TL;DR: The light output response and the neutron and gamma-ray detection efficiency are determined for liquid scintillator EJ-309 and the experimental efficiency results are compared to predictions from GEANT4, MCNPX and PENELOPE Monte Carlo simulations.

TL;DR: Results show that dual-MOSkin detectors can be profitably adopted in prostate brachytherapy treatments to perform real-time in vivo dosimetry inside the urethra.

TL;DR: A commercial boron-loaded liquid scintillator EJ-339 A was studied, using a (252)Cf source with/without polyethylene moderator, to examine the possibility of discriminating slow-neutron induced events in (10)B from fast-NEutron events, resulting from proton recoils, and gamma-ray events.

TL;DR: The basic idea is to take advantage of the experience gained in the past with electron swarms and to use it in establishing procedures of modeling positron diagnostics and therapy based on the well-established experimental binary collision data.

TL;DR: Analysis using Normal, Gamma, Weibull and Rayleigh distributions indicates that the variation of radon levels in seismically active regions is best described by a normal distribution.

TL;DR: Characteristics of lithium potassium borate glasses with various copper concentrations are reported, and glowing curves, dose response curves, reproducibility of the response, dose threshold, thermal fading and optical bleaching were studied.

TL;DR: Proton-induced nuclear reactions for generation of (99)Mo and (99m)Tc radionuclides were investigated using the stacked-foil activation technique on 99.05% enriched (100)Mo targets at energies up to Ep=21MeV.

TL;DR: The results are reviewed, the recommended changes in half-life values and/or uncertainties are presented, and the recommended corrections are radionuclide specific.

TL;DR: Production and quality control of "[(18)F]FDG dose on demand" have been accomplished in an automated and safe manner by the first Biomarker Generator.