25mm (1”) photomultiplier l25d32 series data sheetdivider a divider b g a i 0.1 1 10 10 4 10 5 a /...

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PRELIMINARY 25mm (1”) photomultiplier L25D32 series data sheet description 1 2 applications 3 features window characteristics 4 100 300 500 700 900 0 10 20 30 % wavelength nm quantum efficiency typical spectral response curves 5 0.1 1 10 10 4 10 5 A/lm Vk-a (kV) 2.0 1.2 1.0 0.5 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: 6 LF 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) pulse height resolution: Na with 1” x 1” LSO air gap timing: at 1500 V multi electron rise time single electron jitter (fwhm) transit time weight: maximum ratings: anode current cathode current gain anode sensitivity temperature V (k-a) V (k-d1) V (d-d) 6 characteristics mm % mA/lm A/lm A/lm V V x10 nA nA s mA % ns ps ns g mA nA x 10 A/lm C V V V -30 - 28 80 11 2 2 10 1100 1600 2.5 0.4 2 - TBD 12 - 0.7 TBD 8 19 3 100 20 1.2 10 50 1700 600 225 unit min typ max o 4 -1 5 o (1) (2) subject to not exceeding max.rated sensitivity subject to not exceeding max. rated V(k-a) (1) (2) The L25D32 is a 25 mm (1”) diameter, end window photomultiplier with a blue-green sensitive bialkali photocathode and 6 linear focused type dynodes. low gain application fast time response L25D32 hard glass spectral range*(nm) refractive index (n ) K (ppm) Th (ppb) U (ppb) 290-630 1.49 (tbd) 22 8.5 22 1.6

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  • PRELIM

    INA

    RY

    25mm (1”) photomultiplierL25D32 series data sheet

    description1

    2 applications

    3 features

    window characteristics4

    100 300 500 700 9000

    10

    20

    30

    %

    wavelength nm

    quan

    tum

    effic

    ienc

    y

    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

    104

    105

    A/l

    m

    Vk-a (kV)2.01.21.00.50.2

    gain

    typical voltage gain characteristics7

    photocathode: bialkali active diameter quantum efficiency at peak luminous sensitivity with CB filter with CR filterdynodes: 6 LF 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/lmdark current at 20 C: dc at nominal A/lm dc at max. rated A/lm dark count ratepulsed linearity(-5% deviation)pulse height resolution:

    Na with 1” x 1” LSO air gaptiming: at 1500 V multi electron rise time single electron jitter (fwhm) transit timeweight:maximum ratings: anode current cathode current gain anode sensitivity temperature V (k-a) V (k-d1) V (d-d)

    6 characteristics

    mm%

    mA/lm

    A/lmA/lm

    VV

    x10

    nAnAs

    mA

    %

    nspsnsg

    mAnA

    x 10A/lm

    CVVV

    -30

    -2880112

    210

    110016002.5

    0.42-

    TBD

    12-

    0.7TBD

    8 19

    3

    100201.21050

    1700600225

    unit min typ max

    o

    4

    -1

    5

    o

    (1)

    (2)

    subject to not exceeding max.rated sensitivity subject to not exceeding max. rated V(k-a)(1) (2)

    The L25D32 is a 25 mm (1”) diameter,end window photomultiplier with a blue-greensensitive bialkali photocathode and 6 linear focusedtype dynodes.

    low gain application

    fast time response

    L25D32hard glass

    spectral range*(nm)refractive index (n )

    K (ppm)Th (ppb)U (ppb)

    290-6301.49

    (tbd)

    22

    8.5

    22

    1.6

  • d

    PRELIM

    INA

    RY

    voltage divider distribution8

    Standard

    k d d d d d d a1 2 3 4 5 6 4 1.5 1.5 1 1.5 1 1

    Characteristics contained in this data sheet refer tostandard divider.

    external dimensions mm9

    10 base configuration (viewed from below)

    ordering information11

    voltage dividers12

    © ADIT Electron Tubes 2013DS_L25D32 Issue 1 (08.24.17)

    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 2000880fax:+44(0)1895 270273email:[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.

    ISO 9001:2008 RegisteredBSI Certificate 537654

    choose accessories for this pmt on our website

    1

    7 8

    13

    The L25D32 can be supplied with a custom designed voltage divider installed.

    T.B.D. max withelectromagneticshielding

    T.B.D. max withelectrostatic

    shielding

    insulating sleeve

    electromagneticshielding

    conductive coating

    L25D32base options

    specification optionsnnn special requirements

    unique designator

    w

    A

    Lflying lead

    temporary B12 cap

    L25D32

    Product with special test requirements, integral voltage dividernetwork or with one or more of the shielding options below will be assigned a suffix with the letter A followed by a unique 3digit number to designate the requirement.

    d1

    d3

    nc

    d5

    dnca nc

    6nc

    d4d2

    k1

    234

    56 7

    8910

    1112

    kcut cutd1

    d2d3cutcut

    d4d5d6cut a cut

    cut

    L25D32L L25D32W

    -+432

    13max35

    max

    14.2max

    43 2+-

    45 max

    25.40.5+-

    L25D32L L25D32W

    *nc-not connected