R12829_15 Datasheet, PDF (2/4 Pages) Hamamatsu Corporation – 800 nm High Sensitivity Multialkali Photocathode 28 mm (1-1/8 Inch) Diameter, 9-Stage, Side-On Type

PHOTOMULTIPLIER TUBE R12829
SPECIFICATIONS
GENERAL
Parameter
Description / Value
Unit
Spectral Response
185 to 900
nm
Wavelength of Maximum Response
450
nm
Photocathode
MateriaI
Minimum Effective Area
Multialkali
8 × 24
—
mm
Window Material
UV glass
—
Dynode
Structure
Number of Stages
Circular-cage
9
—
—
Direct
Anode to Last Dynode
4
pF
Interelectrode Anode to All Other
Capacitances Electrodes
6
pF
Base
11-pin base JEDEC No. B11-88 —
Weight
Approx. 45
g
Operating Ambient Temperature
-30 to +50
°C
Storage Temperature
-30 to +50
°C
SuitabIe Socket
E678–11A (Sold Separately)
—
SuitabIe Socket Assembly
E717–63 (Sold Separately)
—
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Value
Unit
Supply Between Anode and Cathode
1250
V
Voltage Between Anode and Last Dynode
250
V
Average Anode Current ^A
0.1
mA
CHARACTERISTlCS (at 25 °C)
Parameter
Radiant
at 450 nm
at 800 nm
Quantum at 450 nm
Cathode Efficiency at 800 nm
Sensitivity Luminous ^B
Red / White Ratio ^C
Blue Sensitivity Index ^D
Anode
Sensitivity
Luminous ^E
Gain ^E
Anode Dark Current ^F
(Supply voltage at 1 × 10⁶ Gain)
Time
Response
Anode Pulse Rise Time ^G
Electron Transit Time ^H
Transit Time Spread (T.T.S.) ^I
Anode Current Light Hysteresis
Stability ^J
Voltage Hysteresis
Min.
—
60
—
9.3
600
—
—
1600
—
—
—
—
—
—
—
Typ.
105
65
29
10
650
0.45
14
8500
1.3 × 10⁷
2.0
2.2
22
1.2
0.1
1.0
Max.
—
—
—
—
—
—
—
—
—
10
—
—
—
—
—
Unit
mA/W
mA/W
%
%
µA/lm
—
—
A/lm
—
nA
ns
ns
ns
%
%
NOTES
A: Averaged over any interval of 30 seconds maximum.
B: The light source is a tungsten filament lamp operated at a
distribution temperature of 2856 K. Supply voltage is 100 V
between the cathode and all other electrodes connected
together as anode.
C:Red / White ratio is the quotient of the cathode current
measured using a red filter (Toshiba R-68) interposed
between the light source and the tube by the cathode
current measured with the filter removed under the same
conditions as Note B.
D: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 B.
E: Measured with the same light source as Note B and with
the voltage distribution ratio shown in Table 1 below.
Table 1:Voltage Distribution Ratio
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 P
Ratio
1 1111 11111
SuppIy Voltage: 1000 V, K: Cathode, Dy: Dynode, P: Anode
F: After 30 min Storage in Darkness
G:The rise time is the time for the output pulse to rise from
10 % to 90 % of the peak amplitude when the entire
photocathode is illuminated by a delta function light pulse.
H: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 amplitube. In measurement, the whole photocathode
is illuminated.
I: Also called transit time jitter. This is the fluctuation in
electron transit time between individual pulses in the signal
photoelectron mode, and may be defined as the FWHM of
the frequency distribution of electron transit times
J: Hysteresis is temporary instability in anode current after
light and voltage are applied.
Hysteresis =
lmax. lmin. _{× 100 (%)}
li
I max.
Ii
I min.
0
5
6
7
TIME (min)
TPMOC0071EB
(1)Light Hysteresis
The tube is operated at 750 V with an anode current of 1 µA
for 5 minutes. The light is then removed from the tube for a
minute. The tube is then re-illuminated by the previous light
level for a minute to measure the variation.
(2)Voltage Hysteresis
The tube is operated at 300 V with an anode current of
0.1 µA for 5 minutes. The light is then removed from the tube
and the supply voltage is quickly increased to 800 V. After a
minute, the supply voltage is then reduced to the previous
value and the tube is re-illuminated for a minute to measure
the variation.