F4655-01 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – WIDE DYNAMIC RANGE MCP ASSEMBLY FOR HELIUM LEAK DETECTOR

PRELIMINARY DATA
MAY 1998
WIDE DYNAMIC RANGE
MCP ASSEMBLY
FOR HELIUM LEAK DETECTOR
F4655-01
Compact MCP assembly optimized for helium leak detector and
mass spectrometer using a wide dynamic range MCP
The F4655-01 is a very compact MCP assembly developed for
helium leak detector as well as mass spectrometer. It uses a
wide dynamic range MCP for extracting a high output current of
10µA* with high stability.
* : At an MCP resistance of 20MΩ
TMCPF0089
FEATURES
Wide dynamic range
Compact and lightweight
Good cost performance
APPLICATIONS
Helium leak detector
Mass spectrometer
SPECIFICATIONS
GENERAL
Pa ra m e te r
Value
Unit
Assembly Outer Diameter
Effective Diameter
Maximum Height
MCP Channel Diameter
Number of MCP Stages
30.0
mm
14.5
mm
8.5
mm
12
µm
1^A
-
A Two-stage MCP type is also available on request.
MAXIMUM RATINGS (Absolute Values)
MCP Supply Voltage (In-Out)
MCP-Out to Anode Voltage
Electric Potential at Each
Terminal
Operating Vacuum Condition
Baking Temperature
Baking Time
Baking Vacuum Condition
1
0.5
MCP-In: -1.5
MCP-Out: -0.5
Anode: GND
6.7×10^-4 (5×10^-6)
-B
-^B
-B
kV
kV
kV
Pa (Torr)
°C
h
Pa (Torr)
B Baking cannot be performed.
CHARACTERISTICS (at 1.3×10^{- 4} Pa (1×10^{- 6} Torr), Ta=+25°C)
Gain
1×10⁴
-
Plate Resistance
5 to 50
MΩ
Dark Current
0.5
pA/cm²
Figure 1: MCP Output Linearity Characteristiscs
TMCPB0080EA
150
Wide Dynamic Range
MCP (1 stage)
100
CONVENTIONAL
MCP (2 stage)
Wide Dynamic Range
50
MCP (2 stage)
0
10^-8
10^-7
10^-6
10^-5
10^-4
OUTPUT CURRENT (A)
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
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. © 1998 Hamamatsu Photonics K.K.