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50
Specifications
Product Variations
The H7467 is a photon counting head designed for photon counting by simply
connecting to a PC (personal computer). The H7467 houses a metal package
photomultiplier tube, high-voltage power supply circuit, photon counting cir-
cuit, 20-bit counter and microprocessor in a compact package. Data transfer,
measurement time and other necessary adjustments are controlled by com-
mands from the PC through the RS-232C interface. The photon counting cir-
cuit discrimination level and the high voltage supply for photomultiplier tube
are preadjusted to optimum levels prior to shipment so that the H7467 can be
easily operated by simply supplying +5 V.
Internal CPU/IF
Photon Counting Head H7467
Parameter
H7467
Input Voltage
Max. Input Voltage
Max. Input Current
Effective Area
Peak Sensitivity Wavelength
Count Sensitivity
Count Linearity *
1
Dark Count *
2
Pulse-pair Resolution
Interface
Gate Time
Operating Ambient Temperature
Storage Temperature
Weight
+4.5 to +5.5
6
180
8
420
1.2
10
5
2.7
10
5
2.2
10
5
2.1
10
4
1.5
10
6
100
500
70
RS-232C, 9600 baud, Parity none, 8 data bit, 1 stop bit
10 to 10 000 (10 Step)
+5 to +40
-20 to +50
120
Unit
V
V
mA
mm
nm
s
-1
pW
-1
s
-1
ns
--
ms
C
C
g
Type No.
H7467
300 nm to 650 nm
Internal photon counting circuit, counter, microprocessor
and RS-232C interface allow control and data transfer by PC.
Spectral Response
Features
*1: Random pulse, at 10 % count loss
*2: After 30 minute storage in darkness
300 nm
400 nm
500 nm
600 nm
Typ.
Max.
s
-1
51
Characteristic
(Count sensitivity)
Block Diagram
Dimensional Outlines
(Unit: mm)
Connection Diagram
TPHOB0048EA
TPHOC0038EC
TPHOA0019EE
AMP
LLD.
+5 V
GND
PC
20 bit
Counter
90 MHz
16-bit
CPU
16 MHz
20 bit
Latch
4 kbyte
RAM
128 kbyte
ROM
I/O
RS-232C
9600 baud
RS-232C
COUNT SENSITIVITY (s
-1
pW
-1
)
WAVELENGTH (nm)
200
300
400
10
3
10
4
10
5
10
6
600
700
800
900
500
H7467
Option
(Optical Fiber Adapter) (Unit: mm)
TACCA0055EA
4-M2
FC-R
14.0
0.2
8.5
3.5
0.2
SIDE VIEW
FRONT VIEW
22.0
0.5
E5776-51 (SMA Type)
4-M2
SMA
14.0
0.2
10.7
5.0
3.0
SIDE VIEW
FRONT VIEW
22.0
0.5
TACCA0239EA
E5776 (FC Type)
PMT
COMPARATOR
PULSE
SHAPER
HV POWER SUPPLY
VOLTAGE DIVIDER
CIRCUIT
PC
SERIAL PORT
RS-232C CROSS CABLE
POWER CABLE
H7467
SUPPLY
VOLTAGE
GND +5 V
TPHOC0045EB
35.0
0.5
35.0
0.2
0.5
50.0
0.5
25
14.0

0.2
9.4
14.0
0.2
11
40.0
0.2
60.0
0.5
35
13
450
20
4-PIN PLUG HIROSE HR10A-7P-4S
+5 V
GND
1500
POWER CABLE (SUPPLIED)
RS-232C CROSS CABLE (SUPPLIED)
SIDE VIEW
FRONT VIEW
REAR VIEW
EFFECTIVE AREA
( 8 MIN.)
4-M2 DEPTH: 4
WINDOW
4-M3 DEPTH: 4
PHOTOCATHODE
RS-232C
9PIN D-sub
POWER INPUT CONNECTOR
HIROSE HR10A-7R-4P
1: Vcc +5V
2: GND
3: IC*
4: IC*
*IC: Internal Connection
(Do not use)
Photon Counting Head with CPU+Interface