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R7402-20 Datasheet(PDF) 1 Page - Hamamatsu Corporation |
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R7402-20 Datasheet(HTML) 1 Page - Hamamatsu Corporation |
1 / 8 page R7400U SERIES METAL PACKAGE PHOTOMULTIPLIER TUBE VOLTAGE DISTRIBUTION RATIO Left: R7400U Right: R7401/R7402 Electrodes K 1 Dy1 1 Dy2 1 Dy3 1 Dy4 1 Dy5 1 1 Dy6 Dy7 1 Dy8 0.5 P Ratio GENERAL Unit Parameter Minimum Effective Area Dynode Weight Operating Ambient Temperature and Storage Temperature Description/Value 8 Metal Channel 8 Approx. 5.3 Approx. 6.3 -80 to +50 -30 to +50 Structure Number of Stages Without Lens With Lens Without Lens With Lens Supply Voltage: 800 V K: Cathode Dy: Dynode P: Anode The R7400U series is a subminiature photomultiplier tube with a 16 mm diameter and 12 mm seated length. A precision engi- neered 8-stage electron multiplier (composed of metal channel dynodes) is incorporated in the TO-8 package to produce a noise free gain of 700,000 times (R7400U). The R7400U series also features excellent response time with a rise time of 0.78 ns. Vari- ous types of the R7400U series are available with different spec- tral response and gain ranges, including those selected specifi- cally for photon counting applications. Hamamatsu also provides a lens input option to the series (R7401 and R7402), effectively doubling the active area. World's smallest photomultiplier tubes assembled. (1/7th of the Hamamatsu R647) The necessary components are built into a TO-8 package while retaining full photomultiplier tube performance to cre- ate a new generation of photosensors. Specially selected on account of low noise and high gain. For use in photon counting applications. The lens window type doubles the effective input area to 12 mm in diameter. Compact size (16 mm diameter, 12 mm seated length), Fast Time response (rise time 0.78 ns) mm — — g g °C °C Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2004 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. FEATURES SPECIFICATIONS SERIES Solar Blind UV to Visible Range R7400U-03 — — R7400U-06 — — R7400U-01 — R7402 R7400U-04 — — R7400U R7400P, R7401P R7401 Visible to Near IR Range UV to Near IR Range Visible Range R7400U-09 — — R7400U-20 — R7402-20 R7400U-02 — R7402-02 Standard For Photon Counting With Lens |
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Similar Description - R7402-20 |
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