76 mm (3.0”) photomultiplier L76B17 series data sheetemail:[email protected] website: The...
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PRELIMINARY 76 mm (3.0”) photomultiplier L76B17 series data sheet description 1 The L76B17 is a 76mm (3”)diameter, end window photomultiplier with a blue-green sensitive photocathode and 10 high gain, high stability, SbCs linear focused dynodes. It is electrically and mechanically interchangeable with the ADIT B76D01 but without the need for a separate focus connection. The short base version (L76B17S) is a plug-in alternative to many other 10 stage photomultipliers having a 14 pin capped base. A flexible wire version is available (L76B17W) and this can also be supplied fitted with a voltage divider to a configuration agreed upon with the customer. 2 applications scintillation counting general purpose low light level detection 3 features low dark current good energy resolution high pulse linearity low rate effect helium resistant envelope window characteristics 4 100 300 500 700 900 0 10 20 30 % wavelength nm quantum efficiency spectral range*(nm) 290 - 620 refractive index (n ) 1.52 d K 50,000 Th (ppb) 250 U (ppb) 200 L76B17 soda lime (ppm) typical spectral response curves 5 0.1 1 10 100 1,000 10 4 10 5 10 6 10 7 50 500 A/lm Vk-a (kV) 1.5 1.2 0.8 1.0 0.6 0.5 0.4 0.3 0.2 gain typical voltage gain characteristics 7 photocathode: bialkali active diameter quantum efficiency at peak luminous sensitivity with CB filter with CR filter dynodes: 10LFSbCs anode sensitivity: nominal anode sensitivity max. rated anode sensitivity overall V for nominal A/lm overall V for max. rated A/lm gain at nominal A/lm dark current at 20 C: dc at nominal A/lm dc at max. rated A/lm dark count rate pulsed linearity(-5% deviation) rate effect(l for Dg/g+1%): magnetic field sensitivity: the field for which the output decreases by 50% most sensitive direction temperature coefficient: timing: multi electron rise time multi electron (fwhm) transit time weight: maximum ratings: anode current cathode current gain anode sensitivity temperature V (k-a) V (k-d1) V (d-d) ambient pressure (absolute) 6 characteristics mm % mA/lm A/lm A/lm V V x10 nA nA s mA mA Tx10 % C ns ns ns g mA nA x 10 A/lm C V V V kPa -30 22 5 68 50 9 0.5 50 200 850 1000 1 0.5 2 - 30 20 1.3 0.5 TBD TBD TBD 142 950 3.0 100 100 10 200 60 2000 300 300 101 unit min typ max o 6 -1 -4 + - 6 o (1) (2) subject to not exceeding max.rated sensitivity subject to not exceeding max. rated V(k-a) (1) (2) -1
Transcript of 76 mm (3.0”) photomultiplier L76B17 series data sheetemail:[email protected] website: The...
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76 mm (3.0”) photomultiplierL76B17 series data sheet
description1The L76B17 is a 76mm (3”)diameter, end window photomultiplierwith a blue-green sensitive photocathode and 10 high gain,high stability, SbCs linear focused dynodes. It is electrically and mechanically interchangeable with the ADIT B76D01 but withoutthe need for a separate focus connection.
The short base version (L76B17S) is a plug-in alternative to manyother 10 stage photomultipliers having a 14 pin capped base. Aflexible wire version is available (L76B17W) and this can also be supplied fitted with a voltage divider to a configuration agreed upon with the customer.
2 applications
scintillation countinggeneral purpose low light level detection
3 featureslow dark currentgood energy resolutionhigh pulse linearitylow rate effecthelium resistant envelope
window characteristics4
100 300 500 700 9000
10
20
30
%
wavelength nm
quan
tum
effic
ienc
y
spectral range*(nm) 290 - 620refractive index (n ) 1.52d
K 50,000Th (ppb) 250U (ppb) 200
L76B17soda lime
(ppm)
typical spectral response curves5
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.00.1
1
10
100
1,000
10,000
104
105
106
107
108
200
2,000
A/l
m
divider Bdivider A gai
0.1
1
10
100
1,000
104
105
106
107
50
500
A/l
m
Vk-a (kV)1.51.20.8 1.00.60.50.40.30.2
gain
typical voltage gain characteristics7
photocathode: bialkali active diameter quantum efficiency at peak luminous sensitivity with CB filter with CR filterdynodes: 10LFSbCsanode sensitivity: nominal anode sensitivity max. rated anode sensitivity overall V for nominal A/lm overall V for max. rated A/lm gain at nominal A/lmdark current at 20 C: dc at nominal A/lm dc at max. rated A/lm dark count ratepulsed linearity(-5% deviation)rate effect(l for Dg/g+1%):magnetic field sensitivity: the field for which the output decreases by 50% most sensitive directiontemperature coefficient:timing: multi electron rise time multi electron (fwhm) transit timeweight:maximum ratings: anode current cathode current gain anode sensitivity temperature V (k-a) V (k-d1) V (d-d)ambient pressure (absolute)
6 characteristics
mm%
mA/lm
A/lmA/lm
VV
x10
nAnAs
mAmA
Tx10% C
nsnsnsg
mAnA
x 10A/lm
CVVV
kPa
-30
22
5
68
509
0.5
50200850
10001
0.52-
3020
1.30.5
TBDTBDTBD142
950
3.0
10010010
20060
2000300300101
unit min typ max
o
6
-1
-4
+-
6
o
(1)
(2)
subject to not exceeding max.rated sensitivity subject to not exceeding max. rated V(k-a)(1) (2)
-1
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voltage divider distribution8
Characteristics contained in this data sheet refer tostandard divider.
external dimensions mm9The drawings below show the L76B17S and L76B17L with the B14A cap fitted, the L76B17W in flying lead format and the L76B17W with a factory fitted voltage divider.
72max
10 base configuration (viewed from below)
A range of B14A sockets is available to suit the B14A cap of the L76B17S and L76B17L. The socket range includes versions with or without a mounting flange, and with contacts for mounting directly onto printed circuit boards.The L76B17 can be supplied with a custom designed voltage divider installed.
ordering information11The L76B17 meets the specifications given in this data sheet.The desired basing option must be specified when orderingby appending the W,S or L suffix to the part number.Custom specifications are available.
Product with special test requirements, integral voltage dividernetwork or with one or more of the shielding options below willbe assigned a suffix with the letter A followed by a unique 3digit number to designate the requirement.
voltage dividers12
Custom dividers available for all base options.
© ADIT Electron Tubes 2013DS_L76B17W Issue 1 (10.01.15)
ADIT Electron Tubes300 Crane StreetSweetwater, Texas 79556 U.S.A.tel:(325)235-1418toll free:(800)399-4557fax:(325)235-2872email:[email protected]:www.electrontubes.com
ET Enterprises Limited45 Riverside WayUxbridge UB8 2YFUnited Kingdomtel:+44(0)1895 200880fax:+44(0)1895 270873email:[email protected]:www.et-enterprises.com
The company reserves the right to modify these designs and specifications without notice.Developmental devices are intended for evaluation and no obligation is assumed for futuremanufacture. While every effort is made to ensure accuracy of published information the company cannot be held responsible for errors or consequences arising therefrom.
The standard voltage dividers available for these pmts are tabulated below:
ISO 9001:2008 RegisteredBSI Certificate 537654
choose accessories for this pmt on our website
L76B17SL76B17LTBD
k d d ......d d d d d
R=330 kW
1 2 6 7 8 9 10 a
......
1 2..................................... 7 8 9 10
k d d d d d d a
3R R R R R R R Standard
typical configurationwith dividerL76B17S L76B17L L76B17W
20max
16max
74max
119.43+-
150+3-15
B14A cap for L76B17S and L76B17L
‘nc’ indicates no internal connection
flying lead basefor L76B17W
‘cl’ indicates cut lead
conductive coating
insulatingsleeve
77.7 max withelectrostatic shielding
78.5 max withelectromagnectic shielding
These options are available byspecial order withany of the base optionsabove.
FL
698
45
7
3
12
1011
12
1314
1516 clclk
a
cl
cl
d10
d2
d3
d4
d5
d7
d8
d9
d1
a
k
d6 d9
d10
d8d7
d5
d4
d3
d2
d1
nc
nc
B14A
76
89
5
4
3
21
10
11
12
1314
d6
