HAMAMATSU F4655-01 Datasheet

PRELIMINARY DATA

10

-7

10

-8

0

50

100

150

10

-6

10

-5

OUTPUT CURRENT (A)

RELATIVE GAIN (%)

10

-4

CONVENTIONAL
MCP (2 stage)

Wide Dynamic Range
MCP (2 stage)

Wide Dynamic Range
MCP (1 stage)

MAY 1998

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 extr acting a high output current of
10µA* with high stability.

* : At an MCP resistance of 20MΩ

WIDE DYNAMIC RANGE
MCP ASSEMBLY
FOR HELIUM LEAK DETECTO R

F4655-01

FEATURES

Wide dynamic range
Compact and lightweight
Good cost performance

SPECIFICATIONS

GENERAL

Assembly Outer Diameter 30.0 mm
Effective Diameter 14.5 mm
Maximum Height 8.5 mm
MCP Channel Diameter 12
Number of MCP Stages 1 -

A

Two-stage MCP type is also available on request

MAXIMUM RATINGS (Absolute Values)

MCP Supply Voltage (In-Out) 1 kV
MCP-Out to Anode Voltage 0.5 kV

Electric Potential at Each
Terminal

Operating V acuum Condition
Baking T emperature ­Baking Time - h
Baking Vacuum Condition - Pa (Torr)

B

Baking cannot be performed.

CHARACTERISTICS (at 1.3×10

Gain
Plate Resistance 5 to 50
Dark Current 0.5 pA/cm

Param e ter Value Unit

A

.

MCP-In: -1.5

MCP-Out: -0.5

Anode: GND

-4

-4

Pa (1×10-6 Torr), Ta=+25°C)

6.7×10

1×10

(5×10-6)

B
B

B

4

Pa (Torr)

µ

M

kV

°

TMCPF0089

APPLICATIONS

Helium leak detector
Mass spectrometer

Figure 1: MCP Output Linearity Characteristiscs

m

C

-

Ω

2

TMCPB0080EA

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. Ho w e ver, 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.

WIDE DYNAMIC RANGE MCP ASSEMBLY FOR HELIUM LEAK DETECTOR F4655-01

Figure 2: Dimensional Outlines (Unit: mm)

ANODE LEAD

3 - M1.6
P.C.D. 21.5

60°

120°

MCP-IN LEAD

3 - 2.2
P.C.D. 26

18

14.5

EFFECTIVE AREA

3.5

3

MCP-OUT LEAD

SINGLE MCP

12.5

PROTECTION ELECTRODE
FOR CHARGING-UP

15

(SAME POTENTIAL

AS SUBSTRATE)

INSULATOR

0.5

8.5

7.5

4.5

SUBSTRATE

ANODE

INSULATOR

TMCPA0043EA

HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193 Japan, Telephone: [phone], Fax: [phone]

U.S.A.

: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone:[phone], Fax:[phone]

Germany

: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone:[phone], Fax:[phone]

France

: Hamamatsu Photonics France: S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone:[phone], Fax:[phone]

United Kingdom
North Europe
Italy

: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone:[phone], Fax:[phone]

: Hamamatsu Photonics Norden AB: FŠršgatan 7, S-164 40 Kista, Sweden, Telephone:[phone], Fax:[phone]

: Hamamatsu Photonics Italia S.R.L.: Via della Moia, 1/E 20020 Arese, (Milano), Italy ,Telephone: [phone] Fax: [phone]

TMCP1020E01
MAY 1998 SI
Printed in Japan (500)