Internal CPU/IF
Photon Counting Head H7467
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 circuit, 20-bit counter and microprocessor in a compact package. Data transfer,
measurement time and other necessary adjustments are controlled by commands from the PC through the RS-232C interface. The photon counting circuit 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.
Product Variations
Type No.
H7467 300 nm to 650 nm
Spectral Response Features
Specifications
Parameter
Input Voltage
Max. Input Voltage
Max. Input Current
Effective Area
Peak Sensitivity Wavelength
300 nm
Count Sensitivity
Count Linearity *
Dark Count *
Pulse-pair Resolution
Interface
Gate Time
Operating Ambient Temperature
Storage Temperature
Weight
*1: Random pulse, at 10 % count loss
*2: After 30 minute storage in darkness
2
400 nm
500 nm
600 nm
1
Ty p.
Max.
Internal photon counting circuit, counter, microprocessor
and RS-232C interface allow control and data transfer by PC.
H7467
+4.5 to +5.5
6
180
8
420
1.2 × 10
2.7 × 10
2.2 × 10
2.1 × 10
1.5 × 10
RS-232C, 9600 baud, Parity none, 8 data bit, 1 stop bit
10 to 10 000 (10 Step)
+5 to +40
-20 to +50
5
5
5
4
6
100
500
70
120
s
Unit
mA
mm
nm
-1
·pW
s
ns
—
ms
°C
°C
V
V
-1
-1
-1
s
g
50
Photon Counting Head with CPU+Interface
Characteristic (Count sensitivity) Block Diagram
TPHOB0048EA
6
10
PMT
AMP
COMPARATOR
)
-1
·pW
5
10
-1
H7467
4
10
COUNT SENSITIVITY (s
3
10
200 300 400
600 700 800 900500
WAVELENGTH (nm)
Connection Diagram
SUPPLY
VOLTAGE
GND +5 V
H7467
POWER CABLE
PULSE
SHAPER
LLD.
HV POWER SUPPLY
VOLTAGE DIVIDER
CIRCUIT
20 bit
Counter
90 MHz
PC
20 bit
Latch
I/O
4 kbyte
RAM
128 kbyte
ROM
16-bit
CPU
16 MHz
RS-232C
RS-232C
9600 baud
+5 V
GND
PC
TPHOC0038EC
RS-232C CROSS CABLE
Dimensional Outlines (Unit: mm)
60.0 ± 0.5
35.0 ± 0.5 35.0 ± 0.20.5
4-M2 DEPTH: 4
14.0 ± 0.2
14.0 ± 0.2
50.0 ± 0.5
25
POWER CABLE (SUPPLIED)
RS-232C CROSS CABLE (SUPPLIED)
11
EFFECTIVE AREA
( 8 MIN.)
4-PIN PLUG HIROSE HR10A-7P-4S
40.0 ± 0.2
9.4
450 ± 20
1500
WINDOW
PHOTOCATHODE
4-M3 DEPTH: 4
SIDE VIEWFRONT VIEW REAR VIEW
SERIAL PORT
POWER INPUT CONNECTOR
HIROSE HR10A-7R-4P
35
13
+5 V
GND
TPHOC0045EB
1: Vcc +5V
2: GND
3: IC*
4: IC*
*IC: Internal Connection
(Do not use)
RS-232C
9PIN D-sub
TPHOA0019EE
Option
(Optical Fiber Adapter) (Unit: mm)
E5776 (FC Type)
22.0 ± 0.5
14.0 ± 0.2
4-M2
FC-R
E5776-51 (SMA Type)
22.0 ± 0.5
14.0 ± 0.2
4-M2
SMA
8.5 3.5 ± 0.2
SIDE VIEWFRONT VIEW
10.7 5.0
SIDE VIEWFRONT VIEW
TACCA0055EA
3.0
TACCA0239EA
51