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Электронный компонент: E989-39

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106
Magnetic Shield Cases E989 Series
Specifications
Dimensional Outlines
(Unit: mm)
TACCA0117EB
TACCA0118EA
TACCA0119EC
TACCA0120EC
TACCA0121EC
TACCA0122EC
Features
G Made of high-permeability permalloy (Ni: 78 %, Fe and others: 22 %)
G Various sizes available with inner diameters from 12 mm to 138 mm
G Lusterless black paint finish
E989
E989-10
E989-02 to -05, -09*, -39*
E989-15
E989-26
E989-28
0.8
138.0
1.5
50
170
1
10
60.0
1.5
1
45
120
10
40
R35.0
0.5
12
0
3-No.5
40UNC
33.6
0.8
8
0.8
24
37
80
1
10
120
120
120
3-M2.6
D
t
L
10
120
120
1
20
*
No mounting hole is provided for
E989-09 and E989-39.
*
3- 3.5
14.5
5
0.5
47.0
0.5
90
0.8
26
23
120
1
68.0
1.5
5
4- 4
90
90
90
80.0
+1.5
-0
48.0


0.5
0.5
10
12.0
0.5
0.5
6
18.0
0.1
22.0
0.3
2- 2.3
Photomultiplier tubes are extremely sensitive to magnetic fields and exhibit
output variations even from sources such as terrestrial magnetism.
Hamamatsu E989 series magnetic shield cases are designed specifically
to protect photomultiplier tubes from the influence of such magnetic fields.
The E989 series uses permalloy, a material that has an extremely high per-
meability (approximately 10
5
). The magnetic field intensity within the shield
case can be attenuated from 1/1000 to 1/10000 of that outside the shield
case (this ratio is called the shielding factor). The E989 series ensures a
stable output for photomultiplier tubes operating in proximity to magnetic
fields.
TACCF0093
Side-on
Head-on
13 mm (1/2")
28 mm (1-1/8") *
10 mm (3/8")
13 mm (1/2")
19 mm (3/4")
25 mm (1")
28 mm (1-1/8")
38 mm (1-1/2")
51 mm (2")
76 mm (3")
127 mm (5")
E989-10
E989
E989-28
E989-09
E989-02
E989-39
E989-03
E989-04
E989-05
E989-15
E989-26
Photomultiplier Tube Diameter
Type No.
Weight (g)
10
66
9
28
50
32
90
102
180
200
600
Length L (mm)
47
0.5
80
1
48
0.5
75
0.5
95
1
48
0.5
120
1
100
1
130
1
120
1
170
1
Thickness t (mm)
0.5
0.8
0.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Internal Dia. D ( mm)
14.5
33.6
0.8
12
0.5
16
0.5
23
0.5
29
0.5
32
0.5
44
60
80
138
1.5
* Photomultiplier tubes with HA coating extending to the base portion cannot be used. Please consult our sales offices for details.
+1
-0
+1
-0
+1.5
-0
Magnetic Shield Cases