Grzegorz Domański
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View article: Coherent flow effects on IVIM-based perfusion measurements: A phantom study in 3 T
Coherent flow effects on IVIM-based perfusion measurements: A phantom study in 3 T Open
Quantitative, non-invasive measurement of perfusion remains a challenge in MRI. The Intravoxel Incoherent Motion (IVIM) technique, based on Diffusion-Weighted Imaging (DWI), offers a method to estimate perfusion at the sub-voxel level by m…
View article: Impedance Analysis of a Two-Layer Air-Core Coil for AC Magnetometry Applications
Impedance Analysis of a Two-Layer Air-Core Coil for AC Magnetometry Applications Open
The aim of the study was to analyze the impedance characteristics of the transmitting coil used in a system for AC magnetometry and the measurement of the Specific Absorption Rate (SAR) of magnetic nanoparticles. A theoretical relationship…
View article: The Lumped-Parameter Calorimetric Model of an AC Magnetometer Designed to Measure the Heating of Magnetic Nanoparticles
The Lumped-Parameter Calorimetric Model of an AC Magnetometer Designed to Measure the Heating of Magnetic Nanoparticles Open
The assessment of superparamagnetic nanoparticle heating is crucial for effective hyperthermia. AC magnetometry can be used to determine the specific absorption rate (SAR) of nanoparticles, assuming proper calorimetric calibration. We show…
View article: Studies on the thermal sensitivity of lung cancer cells exposed to an alternating magnetic field and magnesium-doped maghemite nanoparticles
Studies on the thermal sensitivity of lung cancer cells exposed to an alternating magnetic field and magnesium-doped maghemite nanoparticles Open
Background Magnetic fluid hyperthermia (MFH) represents a promising therapeutic strategy in cancer utilizing the heating capabilities of magnetic nanoparticles when exposed to an alternating magnetic field (AMF). Because the efficacy and s…
View article: The Hybrid System for the Magnetic Characterization of Superparamagnetic Nanoparticles
The Hybrid System for the Magnetic Characterization of Superparamagnetic Nanoparticles Open
The characterization of nanoparticles is crucial in several medical applications, such as hyperthermic therapy, which heats superparamagnetic nanoparticles with an external electromagnetic field. The knowledge of heating ability (magnetic …
View article: Numerical Evaluation of Complex Capacitance Measurement Using Pulse Excitation in Electrical Capacitance Tomography
Numerical Evaluation of Complex Capacitance Measurement Using Pulse Excitation in Electrical Capacitance Tomography Open
Electrical capacitance tomography (ECT) is a technique of imaging the distribution of permittivity inside an object under test. Capacitance is measured between the electrodes surrounding the object, and the image is reconstructed from thes…
View article: THE SYSTEM FOR COMPLEX MAGNETIC SUSCEPTIBILITY MEASUREMENT OF NANOPARTICLES WITH 3D PRINTED CARCASS FOR INTEGRATED RECEIVE COILS
THE SYSTEM FOR COMPLEX MAGNETIC SUSCEPTIBILITY MEASUREMENT OF NANOPARTICLES WITH 3D PRINTED CARCASS FOR INTEGRATED RECEIVE COILS Open
The article concerns the research on the properties of core-shell superparamagnetic nanoparticles in the context of their use in medicine for diagnostics and therapy. The article presents a system for impedance (AC) spectroscopy of nanopar…
View article: Maternal pre-pregnancy underweight as a risk factor for mother and child: analysis of the birth cohort Survey of Neonates in Pomerania I
Maternal pre-pregnancy underweight as a risk factor for mother and child: analysis of the birth cohort Survey of Neonates in Pomerania I Open
Background : The prevalence of pre-pregnancy underweight (BMI (body mass index) <18.5 kg/m²) varies between 3% in Europe and 17% in Asia. Illness and low socioeconomic status may be associated with pre-pregnancy underweight which then may …
View article: DEAD TIME MEASUREMENT BY TWO-SOURCE METHOD – OPTIMIZATION OF MEASUREMENT TIME DIVISION
DEAD TIME MEASUREMENT BY TWO-SOURCE METHOD – OPTIMIZATION OF MEASUREMENT TIME DIVISION Open
The article presents the analysis of the dead time measurement using two sources for a non-paralyzable detector. It determined the optimum division of count rate measurement time between both source measurement and a single source one. Res…
View article: NEEDLE DETECTOR OF X-RAY AND GAMMA RADIATION
NEEDLE DETECTOR OF X-RAY AND GAMMA RADIATION Open
The article presents the developed structure of the novel needle proportional gas detector (NPC – Needle Proportional Counter) used for the detection of X-rays and gamma rays. The advantage of the detector is its simple mechanical construc…
View article: GAIN PREDICTION THEORY OF SINGLE FOIL GAS ELECTRON MULTIPLIER DETECTOR
GAIN PREDICTION THEORY OF SINGLE FOIL GAS ELECTRON MULTIPLIER DETECTOR Open
Gain prediction theory of single foil Gas Electron Multiplier detector was developed. Gas electron multiplier (GEM) detector with single foil was developed. Soft X-ray spectra with an energy of 5.9 keV emitted by the isotope Fe-55 were mea…
View article: Fully Automated Machine for Scanning SIMP detectors
Fully Automated Machine for Scanning SIMP detectors Open
View article: The study of radiation damage of EPROM 2764 memory
The study of radiation damage of EPROM 2764 memory Open
A simple statistical theory of radiation damage of semiconductor memory has been constructed. The radiation damage of EPROM memory has been investigated. The measured number of damaged bytes is significantly lower than the expected number …
View article: Porównanie metod oznaczania ilościowego związków cyjanogennych w surowcach zielarskich
Porównanie metod oznaczania ilościowego związków cyjanogennych w surowcach zielarskich Open
The work describes methods of the detection and quantification of the cyanogenic compounds in plants. In this work the properties and the importance of toxicological and phar-macological selected cyanogenic substances is characterized