PRELIMINARY DATA
MAY 1998
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.
The F4294-09 is an MCP assembly developed for reflectron mass
spectrometers. In spite of having a center hole for beam line, the
F4294-09 eliminates ringing phenomena which have been a
problem with conventional MCP assemblies with a center hole.
The F4294-09 thus makes high-speed ion detection possible.
This allows a significant size reduction in the TOF mass spec-
trometer and a dramatic improvement in mass resolution.
SPECIFICATIONS
GENERAL
Param eter
Value
Unit
Assembly Outer Diameter
69.0
mm
Effective Diameter
27.0
mm
Maximum Height
26.4
mm
MCP Channel Diam eter
12
m
Number of MCP Stages
2
-
Center Hole Diameter
6.0
mm
Center Dead Space Diameter
12.0
mm
MAXIMUM RATINGS (Absolute values)
MCP Supply Voltage (In-Out)
2
kV
MCP-Out to Anode Voltage
0.5
kV
Electric Potential at Each
Terminal
MCP-In: -2.5
MCP-Out: -0.5
Anode: GND
kV
Operating Vacuum Condition
6.7
10
-4
(5
10
-6
) Max.
Pa (Torr)
Baking Temperature
- *
C
Baking Time
- *
h
Baking Vacuum Condition
- *
Pa (Torr)
* Baking cannot be performed.
CHARACTERISTICS (at 1.3
10
-4
Pa (1
10
-6
Torr), Ta=+25C)
Gain at 2.0kV
1
10
6
-
Plate Resistance per MCP
10 to 100
M
Dark Count at 2.0kV
5
cps/cm
2
TMCPF0090
FEATURES
Center hole for beam line
High-speed response
Good output waveform with negligible ringing
APPLICATION
Reflectron mass spectrometer
Ideally suited for reflectron mass spectrometer
MCP ASSEMBLY
WITH CENTER HOLE
FOR REFLECTRON MS
F4294-09
Figure 1: Typical Output Waveform
TMCPB0077EA
RESPONSE TIME (0.5ns/div)
OUTPUT VOLTAGE (5mV/div)
RISE TIME: 328ps
FALL TIME: 633ps
FWHM : 592ps
SUPPLY VOLTAGE (MCP): 1700V
HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193 Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone:(1)908-231-0960, Fax:(1)908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone:(49)8152-375-0, Fax:(49)8152-2658
France: Hamamatsu Photonics France: S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone:(33)1 69 53 71 00, Fax:(33)1 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone:(44)181-367-3560, Fax:(44)181-367-6384
North Europe: Hamamatsu Photonics Norden AB: FSrsgatan 7, S-164 40 Kista, Sweden, Telephone:(46)8-703-29-50, Fax:(46)8-750-58-95
Italy: Hamamatsu Photonics Italia S.R.L.: Via della Moia, 1/E 20020 Arese, (Milano), Italy ,Telephone: (39)2 935 81 733 Fax: (39)2 935 81 741
Figure 2: Dimensional Outlines (Unit: mm)
MCP ASSEMBLY WITH CENTER HOLE FOR REFLECTRON MS F4294-09
TMCP1019E01
MAY 1998 SI
Printed in Japan (500)
6
27
49
69
45
4 - 3.5
P.C.D. 61
4 - M2
P.C.D. 41
20
3
3
14.6
17
8.5
5.3
9.5
2 STAGE MCP
WITH CENTER HOLE 10
SMA CONNECTOR
ANODE
MCP-IN LEAD
MCP-OUT LEAD
CENTER HOLE DIA.
MCP DEAD SPACE
BASE
INSULATOR
MCP-IN
ELECTRODE
EFFECTIVE AREA
12
TMCPA0042EA
PDF 
ZIP