PRELIMINARY DATA
MAY 1998
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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.
MCP ASSEMBLY
FOR HIGH RESOLUTION TOF-MS
F4655-13
SPECIFICATIONS
GENERAL
Parameter
Value
Unit
Assembly Outer Diameter
38.0
mm
Effective Diameter
14.5
mm
Maximum Height
31.9
mm
MCP Channel Diameter
4
m
Number of MCP Stages
2
-
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
)
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
.
FEATURES
Excellent time response
50
impedance matching
Compact and lightweight
APPLICATION
TOF-MS (Time-of-flight mass spectrometer)
The F4655-13 MCP assembly is an ideal detector for high reso-
lution TOF-MS (time-of-flight mass spectroscopy) because of a
two-stage MCP with 4
m channel diameter. Our own advanced
technology in optimizing MCP design allows obtaining an excel-
lent output waveform with negligible ringing even when detect-
ing very high-speed signals. The dimensions are exactly the same
as the F4655-10 MCP assembly, ensuring a compact configura-
tion and easy handling.
High-speed response MCP assembly ideal for high resolution TOF-MS detector
Incorporates a two-stage MCP with 4
m channel diameter
Figure 1: Typical Output Waveform
TMCPB0079EA
RESPONSE TIME (0.5ns/div)
OUTPUT VOLTAGE (5mV/div)
RISE TIME: 293ps
FALL TIME: 539ps
FWHM : 455ps
SUPPLY VOLTAGE (MCP): -1520V
TMCPF0088
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
MCP ASSEMBLY FOR HIGH RESOLUTION TOF-MS F4655-13
TMCP1021E01
MAY 1998 SI
Printed in Japan (500)
30
30
3
2- 2.2
(P.C.D. 26)
MCP-IN ELECTRODE
(SUS-NM)
MCP-OUT ELECTRODE
(SUS-NM)
3-M1.6 SCREWS
(P.C.D. 21.5)
3- 3.5
(P.C.D. 32)
3-CAPACITORS
14.5
18
6
38
13.8
18.1
3
10.3
0.5
3
SUBSTRATE
(SUS 304)
MCP (2 STAGE)
INSULATOR (Al
2
O
3
)
ANODE
(SUS316L)
BNC-R
PROTECTION ELECTRODE
FOR CHARGING-UP
(SAME POTENTIAL AS SUBSTRATE)
(SUS-NM)
EFFECTIVE AREA
TMCPA0044EA
Figure 2: Dimensional Outlines (Unit: mm)
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