H8500 HAMAMATSU

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52 mm Square, Bialkali Photocathode, 12-stage, 8 × 8 Multianode, Small Dead Space, Fast Time Response GSmall Animal Imaging GCompact Gamma Camera GScinti-mammography G2D Radiation Monitor

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MULTIANODE PHOTOMULTIPLIER TUBE ASSEMBLY H8500, H8500B GENERAL Parameter Description / Value Unit Spectral Response Peak Wavelength Photocathode Material Window Dynode Number of Anode Pixels Pixel Size / Pitch at Center Effective Area Dimensional Outline (W × H × D) Packing Density (Effective Area / External Size) Weight Operating Ambient Temperature Storage Temperature nm nm mm mm mm mm g 300 to 650 420 Bialkali Borosilicate glass 1.5 Metal channel dynode 64 (8 × 8 matrix) 5.8 × 5.8 / 6.08 49 × 49 52 × 52 × 28 140 (H8500), 117 (H8500B) 0 to +50 -15 to +50 Material Thickness Structure Number of Stages MAXIMUM RATINGS (Absolute Maximum Values) Parameter Value Unit Supply Voltage (Between Anode to Cathode) Average Anode Output Current in Total Divider Current at -1100 V -1100 100 180 V µA µA Left: H8500, Right: H8500B 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. ©2006 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.

MULTIANODE PHOTOMULTIPLIER TUBE ASSEMBLY H8500, H8500B NOTES The light source is a tungsten filament lamp operated at a distribution temperature of 2856 K. Supply voltage is 150 volts between the cathode and all other electrodes connected together as anode. The value is cathode output current when a blue filter(corning CS 5-58 polished to 1/2 stock thickness) is interposed between the light source and the tube under the same condition as Note A. Measured with the same light source as Note A and with the anode-to-cathode supply voltage and voltage distribution ratio shown in Table 1 below. Measured with the same supply voltage and voltage distribution ratio as Note C after 30 minute storage in darkness. Those are test data when a signal from a central channel of 64 anodes is used, while all photocathode are illuminated by pulsed light source. The rise time is the time for the output pulse to rise from 10 % to 90 % of the peak amplitude when the whole photocathode is illuminated by a delta function light pulse. The electron transit time is the interval between the arrival of delta function light pulse at the entrance window of the tube and the time when the anode output reaches the peak amplitude. In measurement, the whole photocathode is illuminated. Also called transit time jitter. This is the fluctuation in electron transit time between individual pulses in the single photoelectron event, and defined as the FWHM of the frequency distribution of electron transit time. Table 1: Voltage Distribution Ratio and Supply Voltage Figure 1: Typical Spectral Response Figure 2: Typical Gain Characteristics CHARACTERISTICS (at 25 °C) Parameter Min. Unit Cathode Sensitivity Anode Sensitivity Gain C Anode Dark Current per Channel D Anode Dark Current in Total D Time Response E Pulse Linearity per Channel (±2 % deviation) Uniformity (Condition Figure 3) Cross-talk Luminous A Blue Sensitivity Index (CS 5-58) B Quantum Efficiency at 420 nm Luminous C Rise Time F Transit Time G Transit Time Spread (FWHM) H 8.0 0.5 × 10 9.5 1.5 × 10 0.1 0.8 0.4 1: 2 µA/lm A/lm nA nA ns ns ns mA 1: 4 Typ. Max. Supply Voltage: -1000 V, K: Cathode, Dy: Dynode, GR: Guard Ring P: Anode Electrodes Distribution Ratio K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Dy12 GR P 1 1 1 1 0.9 0.1 TPMHB0695ED TPMHB0696EC 100 0.1 0.01 200 300 400 500 WAVELENGTH (nm) CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 600 700 800 CATHODE RADIANT SENSITIVITY QUANTUM EFFICIENCY 107 106 105 104 103 700 800 900 1000 SUPPLY VOLTAGE (V) GAIN 1100