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N7640

Hamamatsu Corporation
Part Number N7640
Manufacturer Hamamatsu Corporation
Description EB-CCD TV SCAN RATE TYPE : N7640 / SLOW SCAN TYPE : N7220
Published May 12, 2005
Detailed Description PR EL IM INA RY EB-CCD TV SCAN RATE TYPE : N7640 SLOW SCAN TYPE : N7220 For Low-Light-Level Imaging with high S/N ratio...
Datasheet PDF File N7640 PDF File

N7640
N7640

Overview
PR EL IM INA RY EB-CCD TV SCAN RATE TYPE : N7640 SLOW SCAN TYPE : N7220 For Low-Light-Level Imaging with high S/N ratio s Imaging Conditions Object illuminance: 0.
1 lx Lens: FUJINON-TV Zoom Lens/H6x 12.
5R :F1.
2/f2 IMAGING COMPARISON Using Resolution Test Chart Commercial 2/3-inch CCD EB-CCD N7640 OVERVIEW The EB-CCD is an absolutely new high-sensitivity imaging device that employs the “Electron Bombardment (EB)” effect for image intensification.
The EB-CCD basically consists of a photocathode and a CCD chip arranged in parallel in a vacuum tube.
An optical image is converted at the photocathode into an electron image, which is then accelerated and directly bombards the CCD surface to produce electron multiplication.
Even a low-light-level image can be brought into view with a high S/N ratio.
Two types of EB-CCD are available depending on the readout method: the N7640 designed to operate at the TV scan rate and the N7220 for slow scan readout.
Both types are compact and simple in structure, and deliver high sensitivity yet ensure high S/N ratio.
The EB-CCD will open up new applications as the next generation of low-light-level imaging devices.
SENSITIVITY COMPARISON (Calculated data) TAPPB0068EA 1000 EB-CCD N7640 100 SENSITIVITY (V.
µJ-1.
cm-2) NORMAL 2/3" CCD 10 1 200 300 400 500 600 700 800 900 1000 1100 WAVELENGTH (nm) APPLICATIONS q High sensitivity video camera • Semiconductor wafer inspection • Real time fluorescence observation • Biochemical emission imaging • Biophoton imaging SPECTRAL RESPONSE 102 TII B0020EA CATHODE SENSITIVITY CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 101 FEATURES TV scan rate type qResolution qGain qDetection limit *1 400 TV lines 700 0.
3 mlx 450 TV lines 1300 Detectable down to single photon region QUANTUM EFFICIENCY 100 10-1 Slow scan type qResolution qGain qDetection limit 10-2 100 200 300 400 500 600 700 800 900 1000 *1: Minimum illuminance on the photocathode required to produce an image.
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