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Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 1998 Hamamatsu Photonics K. K.
WIDE DYNAMIC RANGE
MICROCHANNEL PLATES
F6584 SERIES
20 A Output Current is Available *
The F6584 series is a wide dynamic range MCP that offers more than ten - fold increase in maximum output current
compared to conventional MCPs. This increased current capability is due to low plate resistance. When operated in pulse
counting mode, the F6584 series MCPs also provide maximum counting capability that is more than ten - fold higher than
conventional MCPs. The design is optimized to prevent resistance reduction resulting from high power consumption or
high temperature operation.
The F6584 series MCPs therefore offer excellent stability and reliability even during high current or high temperature
operations. This results in a very wide dynamic range, making these MCPs ideal for various applications such as mass
spectrometers and usage for high counting PMTs.
FEATURES
q
Wide Dynamic Range Typ. 20 A Maximum Output Current *
q
Operable in high temperature condition (+350C Max.
c
)
q
High Gain and Low Noise
APPLICATIONS
q
MS Detector
q
ICP-MS
q
GC-MS
q
LC-MS
q
ESCA
q
Mssbauer Detector
* When the MCP resistance is less than 10 M
.
SPECIFICATIONS
GENERAL
Parameter
F6584-01
F6584-09
Unit
Outer Diameter
24.9
mm
Effective Diameter
20
mm
Plate Thickness
0.48
0.43
mm
Channel Diameter
12
10
m
Channel Pitch
15
12
m
Bias Angle
5,15
degree
Open Area Ratio
60
%
Electrode Material
Inconel
CHARACTERISTICS
(at 1000V, 1.3
10
-4
Pa(1
10
-6
Torr), +25C)
Gain
More than 10
4
Plate Resistance
2 to 30
M
Maximum Dark Current
5
10
-13
A/cm
2
Maximum Linear Output Signal
10 to 20% of the strip current
a
MAXIMUM RATINGS (Absolute Values)
Supply Voltage
b
1000
V
Ambient Temperature
C
-50 to +350
C
NOTE:
a
: The strip current is the current flowing through the channel
walls, which supplies the current released from the channel
walls. It is given by : Supply voltage / Plate resistance.
b
: At a vacuum of 1.3
10
-4
Pa(1
10
-6
Torr) or less.
C
: Single plate operation
500
600
700
800
900
1000
1100
SUPPLY VOLTAGE (V)
10
4
10
3
10
2
CURRENT GAIN
Figure 1: Typical Current Gain vs. Supply Voltage
TMCPB0043EA
WIDE DYNAMIC RANGE MICROCHANNEL PLATES F6584 SERIES
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, 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: Frgatan 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
TMCP1012E04
MAR. 1998. SI (9603)
Printed in Japan (500)
150
100
50
0
10
-8
10
-7
10
-6
10
-5
10
-4
OUTPUT CURRENT [A]
RELATIVE GAIN [%]
STANDARD MCP
R=550 M
V
MCP
=800 V
WIDE DYNAMIC RANGE MCP
R=10.8 M
V
MCP
=800 V
10
8
10
-8
10
-7
10
-6
10
-5
10
-4
OUTPUT CHARGE (C/s)
NUMBER OF COUNTS (cps)
10
7
10
6
10
5
10
4
F6584 WIDE DYNAMIC RANGE MCP
RESISTANCE : 22.4 M
/ 2 STAGE MCP
GAIN : 8
10
6
STANDARD MCP
RESISTANCE :
400 M
/ 2 STAGE MCP
GAIN : 5
10
6
Figure 2: MCP Saturation Characteristics (D.C. MODE)
Figure 3: MCP Saturation Characteristics
(COUNTING MODE)
Figure 4: MCP Dimensional Outline (Unit : mm)
INDICATOR*
T
INPUT SIDE
EFFECTIVE
AREA
ELECTRODE
*This indicator shows the MCP input side and the direction of channel bias.
T
0.48
F6584-01
0.43
F6584-09
20
24.9
: Bias Angle
PRECAUTIONS FOR USE
q
Avoid touching the MCP or MCP assem-
bly with bare hands.
q
Handle the MCP only in a clean room
since dust and humidity may adversely
affect MCP characteristics.
q
The MCP should be operated in vacuum
below 1.33 x 10
-4
Pa(1
10
-6
torr).
q
The MCP should be kept in vacuum or dry
nitrogen gas atmosphere during long
periods of storage.
q
When outgassing from the MCP occurs,
baking the MCP at 400C maximum in a
vacuum system is recommended. In ad-
dition electron bombarding may be effec-
tive.
TMCPB0041EB
TMCPB0042EC
TMCPA0030EB
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