
57
Data Acquisition Units C8907, C8908
The C8907 and C8908 data acquisition units have a signal processing circuit that con-
verts analog signals of a PMT module into digital data for output to a PC (personal
conputer). Gate time/Integration time, number of reading and photomultiplier tube gain
can be controlled from the PC. The C8907 and C8908 also provide output voltage
necessary to operate a PMT module, making device setup and connection easier.
—
ns
bit
—
ms
ms
—
V
—
—
H7826P, H7826P-01, H7732P-01,
H7732P-11, H5783P*
H7826 Series, H7732 Series, H6780 Series*
H5783
Series
*, H7710 / H8567
Series
*
RS-232C
+5
Power cable (6-pin)
RS-232C cross cable
Charge amp + ADC + CPU + interface
—
12
0.04 to 500
0.01 to 500
1 to 127
C8908
Unit
*: We can install a signal connector (BNC-P) and a power input connector (HIROSE HR 10A-7P-6P) to the cable ends of an applicable PMT module
if needed (extra charge). Please specify the type of connector when placing your order.
Related Products
Photon Counting Units C3866, C6465
These photon counting units contain an amplifier and discriminator to convert the sin-
gle photoelectric pulses from a photomultiplier tube into a 5 V digital signal.
The C3866 has an output linearity up to 1
×
10
7 S-1
, and a high-speed counter is not
required when set to division by 10.
The C6465 has an output linearity up to 1
×
10
6 S-1
, and an output pulse width of 30 ns
allows it to be used with a general-purpose counter.
L
Left: C3866 Right: C6465
Input Impedance
Discrimination Level (input conversion)
Gain Required in PMT
Prescaler
Count Linearity
Pulse-pair Resolution
Output Signal Level
Output Pulse Width
Supply Voltage
Connector
Dimensions
Weight
*1: Supplied with a cable (1 m) attached to the mating plug (HIROSE SR30-10PQ-4P).
*2: Supplied with a cable (1.5 m) attached to the mating plug.
Input
Output
Remote
Power
mV
—
s
-1
ns
—
ns
—
—
—
—
—
mm
g
50
-0.5 to -16
3
×
10
6
C-MOS
+5.2
±
0.2 V, 150 mA/-5.2
±
0.2 V, 300 mA
BNC-R
BNC-R
BNC-R
HIROSE SR30-10R-4S *
1
88
×
32
×
170
Approx. 320
1/1
4
×
10
6
25
10
1/10
1
×
10
7
10
Depends on count rate.
C3866
50
-2.2 to -31
5
×
10
6
—
1
×
10
6
60
TTL positive logic
30
+5 V, 60 mA/-5 V, 120 mA
BNC-R
BNC-R
—
DIN (6-pin) *
2
60
×
43.2
×
105
Approx. 250
C6465
Parameter
Unit
Configuration
Pulse-pair Resolution
ADC Resolution
Interface
Gate Time / Integration Time
Dead Time
Number of Reading at Fixed Set Reading
Supply Voltage
Accessories (supplied)
Applicable PMT Modules
Photon counting circuit + counter + CPU + interface
20
—
10 to 1000 (10 step)
—
—
C8907
Parameter
Left: PMT module (sold separately)
s
Right: C8907, C8908