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B Series Totally Depleted Silicon Surface Barrier Radiation Detector

Main Application
Particle identification, telescopes of detectors, any type of ΔE measurements. In addition to ΔE/Δx experiments, the uniformly high field of B Series detectors makes them the best choice for rise-time discrimination or for precision timing experiments. These detectors are also useful in any experiment where an A Series detectors is used; B Series detectors are preferable if radiation damage is likely.

  • Literature +

  • Mounting Arrangements +


    Mount must be specified when ordering.

    A      This is a "ring mount"; i.e., the silicon wafer is offered on its ring without output connectors. This infrequently used arrangement is available on special request.

    T      Microdot on the side of the can; without adjustable screws. (Open back.)

    Dimensions are given in millimeters.

    § Built into a Microdot connector only.

    For detectors 1500 or 2000 μm deep, add 1.5 mm to the Y dimension.


    Detector Size (mm2)
    W (Nominal)    		 Type A  Type T§ Transmission Mount
    X Y  X Y Z
     050  8.0 15.2 3.7
    		 19.4 7.9 9.9
     150  13.8 22.0 3.7
    		 26.1 7.9 9.9
     300  19.5 27.1 3.7
    		 31.6 7.9 9.9
     450 23.9 30.5 3.7
    		 34.8 7.9 9.9
     Tolerance ±0.5 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3

  • Ordering Information +


    Mount must be specified when ordering.

    Supplied with T Mount unless otherwise specified.

    * All standard totally depleted detectors are cut off-axis from the parent crystal at a specific angle that will minimize ion channeling. Supplied in T Mount unless specified otherwise by appropriate letter prefix. Other areas and depths available on special order.

    ** First three digits of Model No. indicate total system resolution FWHM for 241Am, 5.486-MeV alphas, using standard ORTEC electronics and 0.5-µs shaping time constants. Beta resolution approximated by pulser width FWHM.

    § Requires special order.


    Active Area (mm2)
    		 Guaranteed Maximum Resolution** (keV) Depletion Depth 150 µm
    Range 125-175 µm    		 Depletion Depth 200 µm
    Range 176-225 µm         		 Depletion Depth 250 µm
    Range 226-275 µm     
    α β Model No. Model No.  Model No. 
    50 15
    16    		 6
    7    		 B-015-050-150
    B-016-050-150
    		 B-015-050-200
    B-016-050-200    		 B-015-050-250
    B-016-050-250
    150 17
    18    		 9
    10    		 B-017-150-150
    B-018-150-150
    		 B-017-150-200
    B-018-150-200    		 B-017-150-250
    B-018-150-250
    300 19
    20    		 12
    15    		 B-019-300-150
    B-020-300-150
    		 B-019-300-200
    B-020-300-200    		 B-019-300-250
    B-020-300-250
    450 23
    24    		 17
    19    		 B-023-450-150
    B-024-450-150
    		 B-023-450-200
    B-024-450-200    		 B-023-450-250
    B-024-450-250


    Active Area (mm2)
    		 Guaranteed Maximum Resolution** (keV) Depletion Depth 300 µm
    Range 276-350 µm    		 Depletion Depth 400 µm
    Range 351-450 µm     
    α β Model No. Model No. 
    50 15
    16    		 6
    7    		 B-015-050-300
    B-016-050-300    		 B-015-050-400
    B-016-050-400
    150 17
    18    		 9
    10    		 B-017-150-300
    B-018-150-300    		 B-017-150-400
    B-018-150-400
    300 19
    20    		 12
    15    		 B-019-300-300
    B-020-300-300    		 B-019-300-400
    B-020-300-400
    450 23
    24    		 17
    19    		 B-023-450-300
    B-024-450-300    		 B-023-450-400
    B-024-450-400


    Active Area (mm2)
    		 Guaranteed Maximum Resolution** (keV) Depletion Depth 500 µm
    Range 451-550 µm    		 Depletion Depth 700 µm
    Range 650-750 µm         		 Depletion Depth 1000 µm
    Range 950-1050 µm     
    α β Model No. Model No.  Model No.  
    50 15
    16    		 8
    9    		 B-015-050-500
    B-016-050-500    		 B-015-050-700
    B-016-050-700    		 B-015-050-1000
    B-016-050-1000
    150 17
    18    		 9
    10    		 B-017-150-500
    B-018-150-500    		 B-017-150-700
    B-018-150-700    		 B-017-150-1000
    B-018-150-1000
    300 19
    20    		 13
    14    		 B-019-300-500
    B-020-300-500    		 B-019-300-700
    B-020-300-700    		 B-019-300-1000
    B-020-300-1000
    450 21
    23    		 16
    18    		 B-021-450-500
    B-023-450-500    		 B-021-450-700
    B-023-450-700    		 B-021-450-1000
    B-023-450-1000


    Active Area (mm2)
    		 Guaranteed Maximum Resolution** (keV) Depletion Depth 1500 µm§
    Range 1450-1550 µm
    α β Model No.
    50 17
    19    		 12
    14    		 B-017-050-1500
    B-019-050-1500
    150 19
    21    		 14
    16    		 B-019-150-1500
    B-021-150-1500
    300 21 16 B-021-300-1500
    450 24 19 B-024-450-1500


    Active Area (mm2)
    		 Guaranteed Maximum Resolution** (keV) Depletion Depth 2000 µm§
    Range 1950-2050 µm
    α β Model No.
    50 18 13 B-018-050-2000
    150 20 15 B-020-150-2000
    300 23 18 B-023-300-2000
    450 26 21 B-026-450-2000