28 research outputs found
Semiconductor Detectors for Observation of Multi-MeV Protons and Ions Produced by Lasers
The application of time-of-flight Faraday cups and SiC detectors for the measurement of currents of fast ions emitted by laser-produced plasmas is reported. Presented analysis of signals of ion detectors reflects the design and construction of the detector used. A similarity relation between output signals of ion collectors and semiconductor detectors is established. Optimization of the diagnostic system is discussed with respect to the emission time of electromagnetic pulses interfering with signals induced by the fastest ions accelerated up to velocities of 107 m/s. The experimental campaign on laser-driven ion acceleration was performed at the PALS facility in Prague
DIAMOND DETECTORS FOR CHARACTERIZATION OF LASER-GENERATED PLASMA
Abstract -CVD mono-crystalline diamond films were employed as detectors of the Introduction -Laser-generated plasma is characterized by high temperature and density
Comparison of silicon drift detectors made by Amptek and PNDetectors in application to the PHA system for W7-X
The paper presents comparison of two silicon drift detectors (SDD), one made by Amptek, USA, and
the second one by PNDetector, Germany, which are considered for a soft X-ray diagnostic system for W7-X. The
sensitive area of the first one is 7 mm2 × 450 m and the second one is 10 mm2 × 450 m. The first detector is
cooled by a double-stage Peltier element, while the second detector is cooled by single-stage Peltier element. Each
one is equipped with a field-effect transistor (FET). In the detector from Amptek, the FET is mounted separately,
while in the detector from PNDetector, the FET is integrated on the chip. The nominal energy resolution given
by the producers of the fi rst and the second one is 136 [email protected] keV (at –50°C) and 132 [email protected] keV (at –20°C),
respectively. Owing to many advantages, the investigated detectors are good candidates for soft X-ray measurements
in magnetic confi nement devices. They are suitable for soft X-ray diagnostics, like the pulse height analysis
(PHA) system for the stellarator Wendelstein 7-X, which has been developed and manufactured at the Institute
of Plasma Physics and Laser Microfusion (IPPLM), Warsaw, in collaboration with the Max Planck Institute for
Plasma Physics (IPP), Greifswald. The diagnostic is important for the measurements of plasma electron temperature,
impurities content, and possible suprathermal tails in the spectra. In order to choose the best type of
detector, analysis of technical parameters and laboratory tests were done. Detailed studies show that the most
suitable detector for the PHA diagnostics is the PNDetector
Comparison of silicon drift detectors made by Amptek and PNDetectors in application to the PHA system for W7-X
The paper presents comparison of two silicon drift detectors (SDD), one made by Amptek, USA, and
the second one by PNDetector, Germany, which are considered for a soft X-ray diagnostic system for W7-X. The
sensitive area of the first one is 7 mm2 × 450 m and the second one is 10 mm2 × 450 m. The first detector is
cooled by a double-stage Peltier element, while the second detector is cooled by single-stage Peltier element. Each
one is equipped with a field-effect transistor (FET). In the detector from Amptek, the FET is mounted separately,
while in the detector from PNDetector, the FET is integrated on the chip. The nominal energy resolution given
by the producers of the fi rst and the second one is 136 [email protected] keV (at –50°C) and 132 [email protected] keV (at –20°C),
respectively. Owing to many advantages, the investigated detectors are good candidates for soft X-ray measurements
in magnetic confi nement devices. They are suitable for soft X-ray diagnostics, like the pulse height analysis
(PHA) system for the stellarator Wendelstein 7-X, which has been developed and manufactured at the Institute
of Plasma Physics and Laser Microfusion (IPPLM), Warsaw, in collaboration with the Max Planck Institute for
Plasma Physics (IPP), Greifswald. The diagnostic is important for the measurements of plasma electron temperature,
impurities content, and possible suprathermal tails in the spectra. In order to choose the best type of
detector, analysis of technical parameters and laboratory tests were done. Detailed studies show that the most
suitable detector for the PHA diagnostics is the PNDetector
Three-channel X-ray detection head for diagnostics of plasma in noisy environment
A compact, three-channel, noise-resistant detection head based on semiconductor detectors has been built for the
diagnostics of X-ray emission from plasmas. It is useful in the energy range of 0.5–20 keV
Time-integrated diagnostics of X-ray emission from PALS and PF 1000 : preliminary results
Thermoluminescent and semiconductor detectors operating in an integrating mode have been applied to the
measurement of X-ray flashes of high intensity from large plasma facilities. A detection head of special kind has been
developed to perform comparison measurements with the use of the detectors of both kinds
High Power Laser Laboratory at the Institute of Plasma Physics and Laser Microfusion : equipment and preliminary research
The purpose of this paper is to present the newly-opened High Power Laser Laboratory (HPLL) at the
Institute of Plasma Physics and Laser Microfusion (IPPLM). This article describes the laser, the main laboratory
accessories and the diagnostic instruments. We also present preliminary results of the first experiment on ion
and X-ray generation from laser-produced plasma that has been already performed at the HPLL