R7205-01 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBE

PHOTOMULTIPLIER TUBE
R7205-01, R7207-01
For Photon Counting Applications, Low Dark Counts (10cps Typ.)
10mm Effective Area, 28mm(1-1/8 inch) Diameter
Bialkali Photocathode, Head - On Type
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
Material
Minimum Effective Area
Window Material
Dynode
Structure
Number of Stages
Base
Suitable Socket
R7205-01
R7207-01
300 to 650
160 to 650
420
Bialkali
10
Borosilicate glass
Synthetic silica
Box and Line
11
14-pin glass base
E678-14C(supplied)
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage
Average Anode Current
Ambient Temperature
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
Value
1500
250
0.01
-80 to +50
CHARACTERISTICS (at 25°C)
Parameter
Min.
Typ.
Cathode
Sensitivity
Luminous (2856K)
Radiant at 420 nm
Blue (CS - 5 - 58 filter)
Anode
Luminous (2856K)
Sensitivity
Radiant at 420 nm
Gain
Anode Dark counts
Anode Dark current (after 30min storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
40
70
—
72
—
9.0
200
700
—
7.5 × 10⁵
—
1 × 10⁷
—
10
—
—
—
1.7
—
26
NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.
Max.
—
—
—
—
—
—
30
3
—
—
Unit
nm
nm
—
mm dia.
—
—
—
—
—
Unit
Vdc
Vdc
mA
°C
Unit
µA/lm
mA/W
µA/lm-b
A/lm
A/W
—
s^-1
nA
ns
ns
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrode
Ratio
K
Dy1
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9 Dy10 Dy11
P
2
1
1
1
1
1
1
1
1
1
1
1
Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
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. ©2000 Hamamatsu Photonics K.K