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

required when set to division by 10.

The C6465 has an output linearity up to 1

allows it to be used with a general-purpose counter.

LLeft: 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

Input

Output

Remote

Power

Ω

mV

—

ns

—

ns

—

—

—

—

—

mm

g

50

-0.5 to -16

3

C-MOS

+5.2

± 0.2 V, 150 mA/-5.2 ± 0.2 V, 300 mA

BNC-R

BNC-R

BNC-R

88

× 32 × 170

Approx. 320

1/1

4

25

10

1/10

1

10

Depends on count rate.

C3866

50

-2.2 to -31

5

—

1

60

TTL positive logic

30

+5 V, 60 mA/-5 V, 120 mA

BNC-R

BNC-R

—

60

× 43.2 × 105

Approx. 250

C6465

Parameter

Unit

*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.

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