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參數(shù)資料
| 型號： | R2658 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | ER 9C 6#12 3#8 PIN RECP BOX |
| 中文描述： | 光電倍增管 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 105K |
| 代理商： | R2658 |
GENERAL
FEATURES
High QE in Near IR Region ............................... QE 0.13% at 1
μ
m
Wide Wavelength Range ....................................... 185 to 1010 nm
Low Dark Current .......................................... 1 nA at 1250 V (Typ.)
Parameter
Description/Value
Unit
185 to 1010
400
InGaAs (Cs)
3
×
12
UV glass
Cu-BeO
Circular-cage
9
Approx. 4
Approx. 6
11-pin base
JEDEC No. B11-88
Approx. 45
E678-11A
E717-63
Spectral Response
Wavelength of Maximum Response
Material
Minimum Effective Area
Photocathode
Window Material
Dynode
Direct
Interelectrode
Capacitances
Base
Weight
Suitable Socket (Option)
Suitable Socket Assembly (Option)
nm
nm
—
mm
—
—
—
—
pF
pF
—
g
—
—
Secondary Emitting Surface
Structure
Number of Stages
Anode to Last Dynode
Anode to All Other Electrodes
PHOTOMULTIPLIER TUBES
R2658
R2658P
(For Photon Counting)
Information furnished by HAMAMATSU is believed to be reliabIe. 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.
2000 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
High QE in Near IR Region Due to InGaAs (Cs) Photocathode
For Spectrophotometers with 185 to 1010 nm range,
Fluorescence and Laser Applications and Photon Counting (R2658P)
in the Near Infrared Region, etc.
Figure 1: Typical Spectral Response
TPMSB0150EA
The R2658 and the R2658P are 28 mm (1-1/8 inch) diameter side-on
photomultiplier tubes using a newly developed InGaAs semiconductor
photocathode.
The InGaAs photocathode is sensitive from UV to near IR radiations
(as long as over 1010 nm) longer than wavelength limit of GaAs photo-
cathode, and yet offers low dark current. The dark current is 2 orders
lower than the commercial S-1 photocathode. Therefore, they are well
suited for low light detection in the near IR region including fluores-
cence lifetime measurements. Time response, gain, and dimensions
are identical with the conventional 28 mm (1-1/8 inch) diameter side-on
tubes with a GaAs photocathode.
The R2658P is a photon counting version of the R2658 with low dark
counts.
100
10
1
0.1
0.01
200
100
400
600
800
1000
300
500
700
900
1100
WAVELENGTH (nm)
C
Q
CATHODE
RADIANT SENSITIVITY
QUANTUM
EFFICIENCY
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