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參數(shù)資料
| 型號(hào)： | R2949 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTOMULTIPLIER TUBE |
| 中文描述： | 光電倍增管 |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大小： | 51K |
| 代理商： | R2949 |
GENERAL
FEATURES
Low Dark Counts ................................................. 300cps (at 25
°
C)
Low Dark Current ............................................. 2nA (after 30min.)
Wide Spectral Response ........................................ 185 to 900 nm
High Cathode Sensitivity
Luminous ...................................................................... 200
μ
A/lm
Radiant at 400nm ........................................................... 68mA/W
High Anode Sensitivity (at 1000V)
Luminous ...................................................................... 2000A/lm
Radiant at 400nm .................................................... 6.8
×
10
5
A/W
Low Drift and Hysteresis
Parameter
Description/Value
Unit
185 to 900
400
Multialkali
8
×
6
UV glass
Multialkali
Circular-cage
9
Approx. 4
Approx. 6
11-pin base
JEDEC No. B11-88
Approx. 45
E678-11A
E717-21
Spectral Response
Wavelength of Maximum Response
Material
Minimum Useful Size
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 TUBE
R2949
(Low Dark Counts Type of R928)
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.
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
Modified R928, 8
×
6mm Photocathode Area Size
Low Dark Counts, Extended Red Multialkali, High Sensitivity
For Photon Counting Applications
Figure 1: Typical Spectral Response
TPMSB0155EA
The R2949 is a 28mm (1-1/8 inch) diameter, 9-stage, side-on type pho-
tomultiplier tube having the same extended red multialkali photo-
cathode as the R928. The R2949 features very low dark counts,
extremely high quantum efficiency, high gain, good S/N ratio and wide
spectral response from UV to near infrared.
The R2949 is well suited for use in various low-level photometries such
as general single photon counting applications and fluorescence life
time measurement.
The R2949 is directly interchangeable with the R928.
100
10
1
0.1
0.01
200
400
600
800
1000
WAVELENGTH (nm)
C
Q
CATHODE
RADIANT
SENSITIVITY
QUANTUM
EFFICIENCY
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| R2949_06 | 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:PHOTOMULTIPLIER TUBE |
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