Former Head of the Research Group Fundamentals of Electrical Engineering
Address
Ruhr-Universität Bochum
Fakultät für Elektrotechnik und Informationstechnik
Angewandte Elektrodynamik und Plasmatechnik
Universitätsstraße 150
D-44801 Bochum, Germany
Room
ID 1/516
Phone
+49 234 32 702109
Email
mentel(at)aept.rub.de
Downloads
Selected Publications
- Carbon doping – A key for the substitute of thoriated tungsten
- The cataphoretic emitter effect exhibited in high intensity discharge lamp electrodes
- What fore high intensity discharge lamps are beneficial in the age of LEDs
- Change of the arc attachment mode and its effect on the lifetime in automotive high intensity discharge lamps
- The anodic emitter effect and its inversion demonstrated by temperature measurements at doped and undoped tungsten electrodes
- Antenna induced hot restrike of a ceramic metal halide lamp recorded by high-speed photography
- The gas phase emitter effect of lanthanum within ceramic metal halide lamps and its dependence on the La vapor pressure and operating frequency
- Investigation of the flickering of La2O3 and ThO2 doped tungsten cathodes
- Investigating antennas as ignition aid for automotive HID lamps
- Simulation of the hot core mode of arc attachment at a thoriated tungsten cathode by an emitter spot model
- Investigating the outer-bulb discharge as ignition aid for automotive-HID lamps
- The effect of active antennas on the hot-restrike of high intensity discharge lamps
- Gas Phase Emitter Effect of Thulium within Ceramic Metal Halide Lamps in Dependence on Frequency
- Combining emission and absorption spectroscopy at rare earth spectral lines: plasma temperature measurements in ceramic metal halide lamps
- A study of electrode temperature lowering in Dy-containing ceramic metal halide lamps: II. An investigation of the converse effect of Tl and/or Na additives
- A study of electrode temperature lowering in Dy-containing ceramic metal halide lamps: I. The effect of mixtures of Dy, Tl and Na compared with pure Dy
- Temperature measurements at thoriated tungsten electrodes in a model lamp and their interpretation by numerical simulation
- Investigating the gas phase emitter effect of caesium and cerium in ceramic metal halide lamps in dependence on the operating frequency
- Investigating the influence of the operating frequency on the gas phase emitter effect of dysprosium in ceramic metal halide lamps
- Investigating the dependence of the temperature of high-intensity discharge (HID) lamp electrodes on the operating frequency by pyrometric measurements
- Measurement of Ba-densities close to the electrode in an HPS-lamp by broadband absorption spectroscopy with a UHP-lamp
- The gas phase emitter effect at the anode in a high pressure sodium vapour discharge
- The anode region of low current arcs in high intensity discharge lamps