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  • Improvements in Low Power, End window, Transmission-Target X-ray Tubes
    End-window transmission-target X-ray tubes are designed for very close anode-to-sample. coupling for compact portable XRF instruments. Several recent improvements have been. achieved to make these tubes considerably brighter, with better output stability and even smaller size and lower power
  • Thermography Enhances the Capabilities of Laser Transmission Welding (.pdf)
    . Using an FPA detector with a spectral sensitivity of 3.4 to 5 µm, the heat conduction during the welding process of flexible flat cables is monitored. The influence of copper parts within the cable on the welding properties is analyzed. A different setup offers the possibility to measure
  • Semrock VersaChrome Tunable Bandpass Filters
    Thin-film filters are the ideal solution for. wavelength selection in most optical systems due. to exceptionally high transmission (close to 100%),. very steep spectral edges, and blocking of optical. density 6 or higher over wide spectral regions for. maximum noise suppression.
  • Flat Top, Ultra-Narrow Bandpass Optical Filters Using Plasma Deposited Hard Oxide Coatings
    Thin film optical filters with ultra-narrow bandwidth, high transmission and flat spectral profiles improve optical system performance for a variety of applications such as LIDAR, laser cleanup, and instrumentation.
  • Variations in Calibrations of Radiometers Using Cut-on Optical Filters
    The spectral bandpass of infrared radiometers using thermopile detectors are often controlled with a 6µm cut-on filter. These filters normally have a cut-on tolerance of +1µm and the cut-off. wavelengths are determined by the substrate transmission, which is usually germanium or silicon
  • Optimum Low Pass Filter Bandwidth for Generating Signals
    Optical Duobinary modulation has been illustrated to have higher spectral efficiency in high capacity transmission [1], and have better tolerance to chromatic dispersions due to narrower spectral bandwidth [2]. It also enjoys higher threshold for the onset of stimulated Brillouin scattering (SBS
  • Using Noise for RF Receiver Built-In Test Applications
    of BIT systems using noise currently exist. This article identifies these uses at the system architecture level and describes the differing attributes of the noise source required for each. Perhaps the most common application using noise is to test the RF spectral gain/loss response of the front-end
  • Infrared Viewer Frequently Asked Questions
    Power Technology, Inc.'s infrared viewers work by focusing the infrared light reflected by or emitted from a chosen subject onto the image tube. An electron image is generated in accordance with the incident intensity and the S-1 spectral sensitivity of the photocathode material. The IR viewer

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