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A Series Partially Depleted Silicon Surface Barrier Radiation Detector

Main Application
High-resolution charge-particle spectroscopy.

Special Configurations
Special configuration charged-particle detectors are available on special request.

  • 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.

    B      Microdot connector on the rear of the can.

    C  BNC connector on the rear of the can.

    Dimensions given in millimeters. 

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


    Detector Size (mm2)
    W (Nominal)    		 Type A  Type B Rear Microdot Type C Rear BNC
    X Y  X Y Z X Y Z
     025  5.6 15.2  3.7 16.7 12.3 7.1 16.7 12.3 15.9
     050  8.0 15.2 3.7
    		 16.7 12.3 7.1 16.7 12.3 15.9
     100  11.3 22.0 3.7
    		 23.6 12.3 7.1 23.6 12.3 15.9
     150  13.8 22.0 3.7
    		 23.6 12.3 7.1 23.6 12.3 15.9
     300  19.5 27.1 3.7
    		 28.6 12.3 7.1 28.6 12.3 15.9
     450 23.9 30.5 3.7
    		 32.0 12.3
    		 7.1 32.0 12.3
    		 15.9
     Tolerance ±0.5 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3
    		 ±0.3

  • Ordering Information +


    Mount must be specified when ordering.

    Supplied with B Mount unless otherwise specified.

    **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 pulse generator width FWHM.

    § Requires special order.

    NOTE: Alpha Suite Compatible Detectors: ULTRA-AS and Low-Background R Series detectors in B-mount are guaranteed compatible with the Alpha Suite products (DUO, MEGA, ARIA, ENSEMBLE).  All other detectors require an approved special for compatibility and warranted specifications.


    Active Area (mm2)
    		 Guaranteed Maximum Resolution* (keV) Minimum Depletion Depth 1000 µm
    α β Model No.
    25 13
    14    		 6
    6    		 A-013-025-1000
    A-014-025-1000
    50 14
    15    		 7
    8    		 A-014-050-1000
    A-015-050-1000
    100 14
    15    		 7
    8    		 A-014-100-1000
    A-015-100-1000
    150 15
    16    		 9
    10    		 A-015-150-1000
    A-016-150-1000
    300 17
    18    		 13
    14    		 A-017-300-1000
    A-018-300-1000
    450 18
    19    		 13
    14    		 A-018-450-1000
    A-019-450-1000


    Active Area (mm2)
    		 Guaranteed Maximum Resolution* (keV) Minimum Depletion Depth 1500 µm§
    α β Model No.
    25 14
    16    		 9
    11    		 A-014-025-1500
    A-016-025-1500
    50 16
    18    		 11
    13    		 A-016-050-1500
    A-018-050-1500
    100 17
    19    		 12
    14    		 A-017-100-1500
    A-019-100-1500
    150 18
    20    		 13
    15    		 A-018-150-1500
    A-020-150-1500
    300 20
    23    		 15
    18    		 A-020-300-1500
    A-023-300-1500
    450 21
    26    		 16
    21    		 A-021-450-1500
    A-026-450-1500


    Active Area (mm2)
    		 Guaranteed Maximum Resolution* (keV) Minimum Depletion Depth 2000 µm§
    α β Model No.
    25 16  11 A-016-025-2000
    50 17  12 A-017-050-2000
    100 18  13 A-018-100-2000
    150 19  14 A-019-150-2000
    300 22  17 A-022-300-2000