The only way to produce transfermium elements for their study is the accelerator production method in particular multinucleon transfer nuclear reactions with heavy ions1. Neutron-rich isotopes of these elements can be synthesized as a mix of reaction products with predicted half-lives from 1 min to 1 day. Such nuclear physical properties and very similar chemical properties of heavy actinides...
Swift heavy ion (SHI) irradiation, using Xe ions with 150 MeV energy and varying fluences (5 × 109 – 5 × 1011 ions cm⁻¹) is explored as a method to introduce defects in the hydrothermally synthesized monoclinic BiVO4 (BVO) thin films, aiming to understand its impact on photoelectrochemical (PEC) performance for oxygen evolution reaction (OER). In the near surface region, the irradiation leads...
Austenitic stainless steels are widely used as structural materials in nuclear power engineering, as well as in many other non-nuclear engineering and technological fields. This is due to their good mechanical properties as well as fairly high corrosion and radiation resistance. Recently, much research has focused on nitrogen-containing grades of steels, such as AISI 304 LN. The advantages of...
Nanowires are of great scientific interest, both from the point of view of fundamental science and application. For instance, superconducting nanowires serve as elements of a Josephson junction, which is an important component of superconducting and quantum microelectronics, which has been actively developing in recent years. The key areas of development of superconducting microelectronics are...
PXI-compatible module combining amplifier, preamplifier, and singe channel analyzer (SCA) for proportional gas counters will be presented. This module is developed for purpose of usage with proportional gas counter sensitive to 14.4 keV and PXI-based Mössbauer spectrometers developed on Palacký University in Olomouc. The module is based on Amptek A225 and Amptek A206 integrated circuits. This...
Bioengineering is the scientific approach that combines engineering principles with the natural sciences to create modified or enhanced systems that address specific challenges. In the context of solar absorbers, bioengineering plays a role in developing solar absorption systems by studying plant mechanisms like photosynthesis, where solar energy is used as the sole energy source to produce a...
In recent years radionuclides or radionuclide pairs applicable for theranostics (a combination of therapeutics and diagnostics in a medical procedure) have gained a lot of interest. Such radionuclides are known with the examples like 67Ga, 117mSn, 123I, 86Y(90Y), 64Cu(67Cu), 124I(131I), 195mPt and are extensively investigated. Radionuclides 195mPt and 193mPt have one of the highest numbers of...
The continued development of multimodal medical imaging creates demand for contrast agents (CAs) that can be used with multiple imaging techniques. An example of such CAs are Gd-based materials that can be used in magnetic resonance imaging (MRI) and computed tomography (CT), including photon-counting CT. A type of Gd-based material of special interest is nanoparticles with a core-shell...
The use of photon-counting detectors (PCD) in X-ray computed tomography (CT) allows for obtaining specific spectral information about the materials present in the studied object. This provides the capability to detect contrast agents (CAs) based on elements with high atomic numbers, which opens up significant prospects for diagnostics and preclinical trials. This work presents a criterion for...
Boron and its compounds have distinct properties that allows them to be used extensively in various fields. Their non-toxicity has made them attractive in the healthcare and cosmetic industry [2]. Boron and Boron Carbide nanoparticles synthesized at room temperature by pulsed laser ablation in liquid method have shown to give smaller <100nm non-toxic particles with good chemical stability....
Clinical target volume (CTV) is traditionally defined in radiotherapy, but has several limitations (especially binary concept, variability and uncertainty). Recently was introduced a new continuous probabilistic concept - Clinical Target Distribution (CTD), which should help to eliminate the above limitations. In this paper, we implemented CTD in treatment planning system for proton therapy...
Effective noise amplification has been experimentally demonstrated during the interaction of a relativistic electron beam (electron energy 250 keV, current 1.5 kA, pulse duration 2 ns) with slow plasma waves in a plasma maser, in which a double coaxial waveguide is used as the generator section. The outer and inner electrodes of the section are metal, and the role of the middle electrode is...
The LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode material was synthesized by a two-step process, co-precipitation and solid-state methods. The effect of varying the volumes of the chelating (NH4OH) and precipitating (NaOH) agents on the structure, morphology, thermal stability and cycling performance of the prepared NMC811 nanopowders was investigated. The thermogravimetric analysis showed that the...
Gamma-cameras are one of the most popular tool in nuclear medicine for the tomography of human organs with the single photons emitted by the radioactive isotopes. As a rule, these cameras consist of a large continuous scintillator or of many small scintillator pixels. Both types have their own advantages and drawbacks. Here we suggest another type of modular gamma-camera that combines the...
Automation and real-time monitoring are hampered by the fact that traditional methods of controlling operations in opaque reactors typically rely on expensive and invasive sensors. This presentation discusses a low-cost, non-invasive technique that provides useful insights into process dynamics using electrical energy analysis. We demonstrate the application of electrical parameter...
