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參數(shù)資料
| 型號： | C9744 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTON COUNTING UNIT |
| 中文描述： | 光子計數(shù)裝置 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 119K |
| 代理商： | C9744 |
PHOTON COUNTING UNIT
C9744
Information furnished by HAMAMATSU 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. 2006 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
SPECIFICATIONS
Photon counting unit is designed to convert single
photoelectron pulses from a photomultiplier tube into 5 V
digital signals by use of the built-in amplifier and
discriminator circuits. Photon counting with a high S/N
ratio can be performed by simply connecting a counter to
the output of the photon counting unit.
The C9744 uses a high-speed electronic circuit that
allows measurement with an excellent output linearity up
to 10
7
s
-1
. The C9744 also has a prescaler (division by
10) eliminating the need for a high-speed counter.
TACCF0195
Input Impedance
Discrimination Level (input conversion)
Required PMT Gain
Prescaler
Count Linearity
Pulse-pair Resolution
Output Pulse
Output Pulse Width
Supply Voltage
Connector
Dimensions (W
×
H
×
D)
Operating Ambient Temperature
A
Storage Temperature
A
Weight
NOTE:
A
No condensation
B
Supplied with a cable (1.5 m) attached to the mating plug.
÷
1
÷
10
÷
1
÷
10
÷
1
÷
10
Input
Output
Power
mV
—
—
s
-1
ns
—
ns
—
—
—
—
—
mm
°
C
°
C
g
50
-0.4 to -16
3
×
10
6
4
×
10
6
1
×
10
7
25
10
CMOS 5 V, POSITIVE LOGIC
10
Depends on count rate
+5.0 V
±
0.2 V, 130 mA / -5.0 V
±
0.2 V, 50 mA
BNC-R
BNC-R
DIN (6-pin)
B
90
×
32
×
140
0 to +50
-15 to +60
Approx. 250
÷
1
÷
10
C9744
Parameter
Unit
TPHOC0056EA
Figure 1: Block Diagram
SIGNAL INPUT
PULSE
AMPLIFIER
COMPARATOR
PULSE
STRETCHER
÷
1,
÷
10 SELECT
PRESCALER
+5 V GND
POWER INPUT
-5 V
PRESCALER
MULTIPLEXER
SIGNAL OUTPUT
(CMOS: +5 V)
PULSE
SHAPER
(–)
(+)
MONITOR
(DISCRIMINATOR
LEVEL)
VR: DISCRIMINATOR
VR
SW
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