
GENERAL
Parameter
Description/Value
300 to 650
375
High Temp. Bialkali
34
Borosilicate glass
Circular-cage
10
E678-12A (supplied)
Unit
nm
nm
—
mm dia.
—
—
—
—
Spectral Response
Wavelength of Maximum Response
Photocathode
Window Material
Dynode
Suitable Socket
Material
Minimum Useful Diameter
Structure
Number of Stages
PHOTOMULTIPLIER TUBE
R1705
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
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.
1998 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.
Supply Voltage: 1500Vdc, K: Cathode, Dy: Dynode, P: Anode
Ruggedized, High Temperature (175
°
C) PMT (for Oil Well Logging)
38mm (1-1/2 Inch) Diameter, 10-Stage, Head-on Type
CHARACTERISTICS (at 25
°
C)
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes
Ratio
2
1
1
Shock.........100g's, 11
±
1ms, 3 impact shocks per direction (6 directions)
Vibration.....20g's, 50 to 2000Hz, 1oct per minute, 3 sweeps per axis (3 axes)
ENVIRONMENTAL TESTING
Parameter
Luminous (2856K)
Blue (CS 5-58 filter)
Luminous (2856K)
Min.
20
4
5
—
—
—
—
Unit
μ
A/lm
μ
A/lm-b
A/lm
—
nA
ns
ns
Value
1800
250
0.02
-80 to +175
Unit
Vdc
Vdc
mA
°
C
Supply Voltage
Average Anode Current
Ambient Temperature
Anode Pulse Rise Time
Electron Transit Time
Cathode Sensitivity
Anode Sensitivity
Gain
Anode Dark Current (after 30min. storage in darkness)
Time Response
K
Dy1
Dy2
Dy3
Dy4
1
Dy5
1
Dy6
1
Dy7
1
Dy8
1
Dy9
1
1
1
Dy10
P
40
6
20
5
×
10
5
0.5*
2.0
35
—
—
—
—
10
—
—
Typ.
Max.
* 1000nA at 175
°
C