AbstractͶGamma and neutron radiation is produced during the normal operation of linear accelerato... more AbstractͶGamma and neutron radiation is produced during the normal operation of linear accelerators like Free-Electron Laser in Hamburg (FLASH) or X-ray Free Electron Laser (X-FEL). Gamma radiation cause general degeneration of electronics devices and neutron fluence can be ...
29th IEEE Semiconductor Thermal Measurement and Management Symposium, 2013
ABSTRACT This paper presents an experimental study aimed at the investigation of the influence of... more ABSTRACT This paper presents an experimental study aimed at the investigation of the influence of boundary conditions on the element values of compact thermal models generated in the form of Cauer RC ladders. Particular attention is paid to the analysis of the impact of variable boundary temperature. The considerations are illustrated based on the experimental results obtained for a discrete silicon carbide power device.
The goal of this research is to present modern SCADA (supervisory control and data acquisition) s... more The goal of this research is to present modern SCADA (supervisory control and data acquisition) systems abilities. The first part of this paper concentrates on the SCADA history and shows how SCADA systems have changed since they have appeared. This part also includes structure specification of modern SCADA systems as well as merits and description of scripting languages which are embedded in SCADA software. The second part of this research presents scripting languages abilities based on example of Visual Basic for Applications which are integrated with iFIX Intellution HMI/SCADA Automation Software. All examples come from the author's master thesis which is entitled “The use of SCADA System in Visualization of Medicine Production Process”. The extent of this master thesis was done a visualization system. This system presents a real production process which is implemented in one of the pharmaceutical companies in Lodz.
Abstract-The goal of this research is to present signals filtering for the high resolution Holter... more Abstract-The goal of this research is to present signals filtering for the high resolution Holter monitoring system. The first part of this paper concentrates on working of human heart and description of architecture of biopotentials recorder. This part also includes proper ...
... REFERENCES [1] M. Kachare, J. Ramírez-Angulo, R. Gonzalez Carvajal, AJ López-Martín, "Ne... more ... REFERENCES [1] M. Kachare, J. Ramírez-Angulo, R. Gonzalez Carvajal, AJ López-Martín, "New Low-Voltage Fully ... to Adjustable Voltage-Range Current-Controlled Trapezoidal Waveform Generators", International Conference CADSM2011, Polyana-Svalyava (Zakarpattya ...
ABSTRACT The paper presents a SiC merged PiN Schottky diode model dedicated to the dynamic as-wel... more ABSTRACT The paper presents a SiC merged PiN Schottky diode model dedicated to the dynamic as-well-as very accurate static simulation. The model takes into account the temperature dependence of device characteristics and combines in a single model the behaviour typical for bipolar and unipolar devices. The presented electro-thermal simulations of the diode produce accurate results, consistent with the measurements. The dynamic model verification has been also presented on the example of a boost power converter.
Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resona... more Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resonant cavities to accelerate electron beam to high energies. TESLA type resonators are extremely sensitive to detuning induced by mechanical deformations – Lorentz force detuning (LFD), mainly due to the extremely high quality factor (Q) of the 1.3 GHz resonance mode, in the range of 1e6. The resulting modulation of a resonance frequency of the cavity makes power consumption and stability performances of the Low-Latency Radio Frequency (LLRF) control more critical. In order to minimize the RF control efforts and desired stabilities, the fast piezoelectric actuators with digital control systems are commonly used. The paper presents a novel approach for automatic control of piezoelectric actuators used for compensation of Lorentz force detuning, the practical application and carried out tests in accelerating module ACC6 in Free-Electron Laser in Hamburg (FLASH).
AbstractͶGamma and neutron radiation is produced during the normal operation of linear accelerato... more AbstractͶGamma and neutron radiation is produced during the normal operation of linear accelerators like Free-Electron Laser in Hamburg (FLASH) or X-ray Free Electron Laser (X-FEL). Gamma radiation cause general degeneration of electronics devices and neutron fluence can be ...
29th IEEE Semiconductor Thermal Measurement and Management Symposium, 2013
ABSTRACT This paper presents an experimental study aimed at the investigation of the influence of... more ABSTRACT This paper presents an experimental study aimed at the investigation of the influence of boundary conditions on the element values of compact thermal models generated in the form of Cauer RC ladders. Particular attention is paid to the analysis of the impact of variable boundary temperature. The considerations are illustrated based on the experimental results obtained for a discrete silicon carbide power device.
The goal of this research is to present modern SCADA (supervisory control and data acquisition) s... more The goal of this research is to present modern SCADA (supervisory control and data acquisition) systems abilities. The first part of this paper concentrates on the SCADA history and shows how SCADA systems have changed since they have appeared. This part also includes structure specification of modern SCADA systems as well as merits and description of scripting languages which are embedded in SCADA software. The second part of this research presents scripting languages abilities based on example of Visual Basic for Applications which are integrated with iFIX Intellution HMI/SCADA Automation Software. All examples come from the author's master thesis which is entitled “The use of SCADA System in Visualization of Medicine Production Process”. The extent of this master thesis was done a visualization system. This system presents a real production process which is implemented in one of the pharmaceutical companies in Lodz.
Abstract-The goal of this research is to present signals filtering for the high resolution Holter... more Abstract-The goal of this research is to present signals filtering for the high resolution Holter monitoring system. The first part of this paper concentrates on working of human heart and description of architecture of biopotentials recorder. This part also includes proper ...
... REFERENCES [1] M. Kachare, J. Ramírez-Angulo, R. Gonzalez Carvajal, AJ López-Martín, "Ne... more ... REFERENCES [1] M. Kachare, J. Ramírez-Angulo, R. Gonzalez Carvajal, AJ López-Martín, "New Low-Voltage Fully ... to Adjustable Voltage-Range Current-Controlled Trapezoidal Waveform Generators", International Conference CADSM2011, Polyana-Svalyava (Zakarpattya ...
ABSTRACT The paper presents a SiC merged PiN Schottky diode model dedicated to the dynamic as-wel... more ABSTRACT The paper presents a SiC merged PiN Schottky diode model dedicated to the dynamic as-well-as very accurate static simulation. The model takes into account the temperature dependence of device characteristics and combines in a single model the behaviour typical for bipolar and unipolar devices. The presented electro-thermal simulations of the diode produce accurate results, consistent with the measurements. The dynamic model verification has been also presented on the example of a boost power converter.
Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resona... more Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resonant cavities to accelerate electron beam to high energies. TESLA type resonators are extremely sensitive to detuning induced by mechanical deformations – Lorentz force detuning (LFD), mainly due to the extremely high quality factor (Q) of the 1.3 GHz resonance mode, in the range of 1e6. The resulting modulation of a resonance frequency of the cavity makes power consumption and stability performances of the Low-Latency Radio Frequency (LLRF) control more critical. In order to minimize the RF control efforts and desired stabilities, the fast piezoelectric actuators with digital control systems are commonly used. The paper presents a novel approach for automatic control of piezoelectric actuators used for compensation of Lorentz force detuning, the practical application and carried out tests in accelerating module ACC6 in Free-Electron Laser in Hamburg (FLASH).
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Papers by Andrzej Napieralski