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參數(shù)資料
| 型號： | C972 |
| 廠商： | PerkinElmer Inc. |
| 英文描述： | LED, RED, VERT, 2.5 X 2MM, 40 DEG., 660NM,GULL WING, SMD |
| 中文描述： | 通道光電倍增 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 859K |
| 代理商： | C972 |
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1 E+09
1 E+08
1 E+07
1 E+06
1 E+05
1 E+04
1 E+03
1 E+02
C
Bias Voltage (V)
Fig. 1: Typical current amplification
1000
1500
2000
2500
3000
1 E-05
1 E-06
1 E-07
1 E-08
1 E-09
1 E-10
1 E-11
1 E-12
D
Bias Voltage (V)
Fig. 2: Typical anode dark current
C 911
C 922
C 942
C 952
C 962
C 972
M A I N F E A T U R E S
CompactSize
T
heCPMisoneofthesmallesthead-
ontypedetectors,witha10.5mm
diameterincludingencapsulation.The
photocathodehasausefuldiameter
ofmorethan5mm.Thetubeissmal-
ler,easiertouse,andmorerugged
thandiscretedynodetypes.Onlya
singlehighvoltagesupplyofupto
3000voltsisnecessary;noexternal
voltagedividernetworkisrequired.
Avarietyofdifferentsizeswillbeavai-
lablesoon(
1
/
2
”and
3
/
4
”).
Ultrahighanodesensitivity
A
tthemaximumbiasvoltageof3000V,
gainscanexceed10
8
.At2400V,an-
odesensitivityistypically3x10
6
A/W
atawavelengthof410nmwithabi-
alkaliphotocathode.Thisperforman-
cesurpassesconventionalPMTsby
onetotwoordersofmagnitudeand
beatsAPDsbyapproximatelyfiveor-
dersofmagnitude(Fig.1).
Extremelylowdarkcurrent
T
he electron multiplication in the
channelisvirtuallysilent,sodarkcur-
rent depends only on the photoca-
thodematerial,leakagecurrentsare
negligible.Bialkaliphotocathodesex-
hibit typical dark count rates of 10
cpsatagainof3x10
8
,whileUVca-
thodeshavedarkcountratesbelow1
cps.InanalogDCmode,thetypical
darknoiseforabialkaliphotocathode
is20pAat againof10
7
.Ingeneral,
the noise level of the PerkinElmer
OptoelectronicsCPMisonetotwo
ordersofmagnitudelowerthandyn-
odePMTs,resultinginasignificant-
lyhigherdynamicrange(Fig.2).
9
Unpotted
1
/
3
inchChannelPhotomultiplier
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