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Found 321 documents, displaying page 1 of 33

Gamma radiation nose system based on In2O3/SiO thick film PN-junctions

Description : peer-reviewed , In2O3 and SiO mixtures into thick film pn-junctions form were investigated for γ-radiation dosimetry purposes. Results show that the current is increased with the increase in radiation dose to a certain level, exceeding this level resulted in device damage. The performance parameters of...
Repository : ULIR
Language(s) : English

MnO/Te02 thin film gamma radiation sensors

Description : peer-reviewed , In this work, the use of mixed oxide materials, such as Manganese oxide (MnO) and Tellurium dioxide (Te02) in the form of thermally evaporated thin film structures, is explored for gamma radiation dosimetry application. All samples showed an increase in the values of current with the in...
Repository : ULIR
Language(s) : English

γ-Radiation dosimetry using screen printed nickel oxide thick films

Description : peer-reviewed , Thick films of Nickel oxide (NiO) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using the thick film screen printing technique. Absorption spectra for NiO films were recorded and the values of the optical band gap for as-printed, irradiated and annealed f...
Repository : ULIR
Language(s) : English

Top surface imaging lithography processes for I-line resists using liquid-phase silylation

Description : In this paper, liquid-phase silylation process for Top Surface Imaging Lithography systems incorporated e-beam exposure has been experimentally investigated using FT-IR spectroscopy, UV spectroscopy, SIM spectrometry and SEM cross-sectionals. The impact of different silylating agents on Shipley SPR...
Repository : ULIR
Language(s) : English

Radiation-induced changes in the electrical properties of TiO2 thick films

Description : peer-reviewed , The electrical properties of screen-printed TiO2 based thick films were explored in terms of gamma radiation influence. Screen-printed pn-heterojunctions and resistors were exposed to γ- radiation from a 137Cs source with an activity of 370 kBq. To form the resistors, a doping of TiO2 p...
Repository : ULIR
Language(s) : English

Gamma radiation dosimetry using Tellurium Dioxide thin film structures

Description : peer-reviewed , Thin films of Tellurium dioxide (TeO2) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using thin film vapour deposition technique. Thin films of Te02 were exposed to a 60Co γ-radiation source at a dose rate of 6 Gγ/min at room temperature. Absorption spect...
Repository : ULIR
Language(s) : English

Development of wireless pressure measurement system for short range medical applications

Description : peer-reviewed , A prototype of miniaturized, low power, bi-directional wireless communication system was designed for in vivo pressure monitoring. The capacitive pressure sensors have been developed particularly for the medical field, where packaging size and minimization of the power requirements of t...
Repository : ULIR
Language(s) : English

Low power programmable prototype sensor for remotely pressure monitoring

Description : peer-reviewed , In this paper, a miniaturized, low power, bidirectional wireless communication system has been developed to be used for in vivo pressure monitoring. The system prototype consists of miniature FSK transceiver integrated with Microcontroller unit (MCU) in one small package, chip antenna, ...
Repository : ULIR
Language(s) : English

Investigation into the pressure sensing properties of PVDF and PVB thick film capacitors

Description : peer-reviewed , This paper examines the sensitivity of polyvinylidene fluoride (PVDF) and polyvinyl butyral (PVB) capacitors to pressures ranging from 0 – 100 kPa. The capacitors were formed by screenprinting onto flexible substrates and have an active area of 2 x 3 mm2. There are no moving parts and a...
Repository : ULIR
Language(s) : English

Wireless ultra-low power smart data aquisition system for pressure sensing in medical application

Author(s) : Arshak, Khalil , Jafer, Essa
Description : peer-reviewed , The development of a wireless sensor microsystems containing all the components of data acquisition system, such as sensors, signal-conditioning circuits, analog-digital converter, embedded microcontroller (MCU), and RF communication modules has become now the focus of attention in many...
Repository : ULIR
Language(s) : English

Found 321 documents, displaying page 1 of 33