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ФЭУ-142 Параметры и характеристики . |
Photo multiplier FEU-142 Photocathode is semitransparent, tellurium-caesium. Electrostatic focusing. 14 dinodes multiplier system. Works in UV range: 112...365 nm. Socket of RSh40 type. Divisor current must be at least as 100 times higher that average anode current. General parameters: Normal power supply voltage is 2200V when spectral anodic sensitivity is 10000 A/W at wavelength 253.7 nm. Real (tested) power supply voltage may be some less. Backgroun current in darkness is lower than 8*10-11 A. Spectral sensitivity of photocatode is at least 8*10-3 A/W at wavelength 253.7 nm. Relative spectral sensitivity of photocatode is: 0.8% at wavelength 365 nm. 0.1% at wavelength 400 nm. Maximim power supply voltage: 2400 V Maximum anode current: 1.5 mkA Maximum peak anode current during 5 min: 10 mkA Minimum working range: 2000 hours Sizes: diam: 22mm length: 80 mm weight: 30 g | |
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