PHOTOMULTIPLIER TUBE
R6504
For an Operation in Magnetic Fields over 1Tesla
64 mm (2.5 Inch) Head-On, Fast Time Response, High Pulse Linearity
19-stage Fine Mesh Dynodes, Bialkali Photocathode
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Material
Photocathode
Minimum Effective Area
Material
Window
Shape
Secondary Emitting Surface
Structure
Dynode
Number of Stages
Description/Value
300 to 650
420
±
50
Bialkali
51
Borosilicate glass
Plano-plano
Bialkali
Fine mesh
19
Unit
nm
nm
—
mm dia.
—
—
—
—
—
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage
Average Anode Current
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
Value
2300
200
0.1
Unit
Vdc
Vdc
mA
CHARACTERISTICS (at 25°C)
Parameter
Luminous (2856K)
Blue (CS-5-58 filter)
Cathode Sensitivity
Quantum Efficiency at 390nm
Anode Sensitivity
Luminous (2856K)
At 0 tesla
Gain
At 1 tesla
Anode Dark Current (after 30min. storage in darkness)
Anode Pulse Rise Time
Time Response
Transit Time
Transit Time Spread (FWHM)
Pulse Linearity (at 2% Deviation)
Min.
—
—
—
—
—
—
—
—
—
—
—
Typ.
70
9.0
22
700
1.0
×
10
7
2.0
×
10
5
50
2.7
11
0.47
700
Max.
—
—
—
—
—
—
300
—
—
—
—
Unit
µA/lm
µA/lm-b
%
A/lm
—
—
nA
ns
ns
ns
mA
NOTE:
Anode characteristics are measured with the voltage distribution ratio shown below.
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes
K
Dy1 Dy2 Dy3 Dy4 Dy5 Dy6
Ratio
2
1
1
1
1
1
Supply Voltage: 2000Vdc, K: Cathode, Dy: Dynode, P: Anode
• • • • • • • • • • • • • •
• • • • • • • • • • • • • •
Dy19
1
1
P
*
PC board breeder assembly type is also available.
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 HAMAMATS U 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.
'
1999 Hamamatsu Photonics K.K.
HAMAMATSU [ HAMAMATSU CORPORATION ]
