ProxiVision影像增強器-Visible

產品咨詢

產品中心

影像增強器-Visible

發布時間: 2020-07-30 14:18

ProxiVision

ProxiVision旗下針對可見光波段的影像增強器，適用於在極高速快門、極低光強度、極高信躁比的非常規條件下做影像強化。這類影像增強器通常適用於捕捉單光子事件等實驗，或是瞬燃、電漿等shutter time介於~3 nsec之超高速實驗。
影像增強器-Visible 主要參數：

photocathode: from 200 to 800 nm (different types for optimal QE and SNR)
input window: MgF2 ,quarz, fiberoptic
Active diameter: 25 mm, 40 mm
Number of MCPs: 1 for imaging, 2 for photon counting
Shutter option: (DC, 1 ms, 100 ns, 10 ns, 5 ns, 1 ns)
power supply: integrated or separate
Output window: clear glass or fiberoptic
Output phosphor screen: P43, P46 or P47 – for optimized efficiency and decay characteristic
individual options on request (Custom engineering)

影像增強器-Visible 特點
Image intensifiers allow the amplification of visible images up to a level, where single quanta of light can be seen at the output of the device. In contrast to semiconductor sensors, the physics of the detection process hinders most of the thermally generated electrons to be amplified. Therefore the dark current of these sensors is drastically reduced, which makes them a prime candidate for ultra-low light environments.
Another unique feature of the detection process is the possibility to stop the signal generated by incoming photons to be amplified and detected in about 1 ns. Thus, these detectors can be used for high speed imaging down to a timespan of ~ 3ns. Therefore they have to be driven by an appropriate pulse generator (ProxiGate).
The spectral response can be tuned by selecting different photocathode materials and parameters (->Verweis auf Bild mit PK Empfindlichkeiten unter Configuration Parameters). Photocathodes with higher sensitivity in the red part of the spectrum have higher noise than those who are only sensitive in the blue/green part.
影像增強器-Visible 應用