HAMAMATSU R6427, R7056 Datasheet
PHOTOMULTIPLIER TUBES
R6427, R7056
Fast time response, For scintillation counting and
high energy physics, R6427: Borosilicate glass, R7056: UV glass
GENERAL
Parameter R6427 R7056 Unit
Spectral Response
Wavelength of Maximum Response
Photocathode
Window Material
Dynode
Base
Suitable Socket
Material
Minimum Effective Area
Structure
Number of Stages
300 to 650
Borosilicate glass
Linear focused
14-pin glass base
E678-14C (supplied)
420
Bialkali
25
10
185 to 650
UV glass
nm
nm
—
mm dia.
—
—
—
—
—
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter Value Unit
Supply Voltage
Average Anode Current
Ambient Temperature
Between Anode and Cathode
Between Anode and Last Dynode
CHARACTERISTICS (at 25°C)
Parameter Min. Unit
Luminous (2856K)
Cathode Sensitivity
Anode Sensitivity
Gain
Anode Dark Current (after 30min. storage in darkness)
Time Response
Pulse Linearity (at ±2% deviation)
: Anode characteristics are measured with the voltage distribution ratio A shown below.
NOTE
: Pulse linearity is measured with the voltage distribution ratio B shown below.
( )
Radiant at 420nm
Blue (CS-5-58 filter)
Luminous (2856K)
Radiant at 420nm
Anode Pulse Rise Time
Electron Transit Time
Transit Time Spread (FWHM)
60
—
—
—
—
—
—
—
—
—
—
2000
350
0.2
-80 to +50
Typ. Max.
95
88
11.0
475
5 × 10
10
1.7
16
500
5
6
4.4 × 10
10 (100)
—
—
—
—
—
—
200
—
—
—
—
Vdc
Vdc
mA
°C
µA/lm
mA/W
µA/lm-b
A/lm
A/W
—
nA
ns
ns
ps
mA
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
(Tapered)
(µF)
K Dy1
4
4
Electrodes
Ratio A
Ratio B
Capacitors
Supply Voltage: 1500Vdc, K: Cathode, DY: Dynode, P: Anode
Subject to local technical requirements and regulat ions, availability of products included in this promotional material may var y. P lease consult with our sales office.
lnformation furnished by HAMA M ATSU is believed to be reliabIe. However, n o responsibility is assumed for possibIe inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein.
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9
Dy10
1
1.5
1
1.5
1
1
1
1
1
1
1
1
1
1
1.2
0.01
1.5
0.02
2
0.02
3.3
0.04
1999 Hamamatsu Photonics K.K.
©
P
1
3
0.06
PHOTOMULTIPLIER TUBES R6427, R7056
Figure 1: Typical Spectral Response
TPMHB0434EB
100
R7056
10
1
QUANTUM EFFICIENCY (%)
0.1
CATHODE RADIANT SENSITIVITY (mA/W)
0.01
100 200 400 500300 600 700
R6427
WAVELENGTH (nm)
800
Figure 2: Typical Gain
TPMHB0433EB
8
10
7
10
STANDARD (RATIO A)
6
10
5
10
GAIN
4
10
3
10
2
10
500 300015001000700
SUPPLY VOLTAGE (V)
TAPER (RATIO B)
2000 2500
Figure 3: Typical Pulse Height Distribution (P.H.D.)
TPMHB0432EA
1.0
0.8
4
0.6
0.4
COUNTS PER CHANNEL
FULL SCALE (SIGNAL+DARK): ×104FULL SCALE (DARK) : ×10
0.2
DARK
0 200 400 600 800
WAVELENGTH OF
INCIDENT LIGHT
SUPPLY VOLTAGE
LOWER LEVEL DISCRI
SIGNAL+DARK COUNTS
DARK COUNTS
AMBIENT TEMPERATURE
SIGNAL + DARK
CHANNEL NUMBER (ch)
: 400 [nm]
: 1500 [V]
: 80 [ch]
: 5600[cps]
: 150 [cps]
: 25[°C]
1000
Figure 4: Time Response
TPMHB0435EA
2
10
1
10
TIME (ns)
0
10
1000 1500 2000 2500 3000
SUPPLY VOLTAGE (V)
TRANSIT TIME
FALL TIME
RISE TIME
T.T.S.
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