Standard BSD Module
Get low signal capacitances and leakage currents with PNDetector’s Standard BSD
Our BSDs with different chip geometries and active areas ranging from 40 mm² to 420 mm² are the best choice for applications with fixed position setups below the pole piece of the SEM.
Key Features
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Optimized detector geometry for your application
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Non-magnetic materials and low outgassing
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Very low dark currents below 1 nA
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Excellent geometric collection efficiency (GCE) up to 87%
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Large active area sizes designed for in-lens applications
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Excellent detection collection efficienc (DCE) with our optimized window (OPW) of 70% DCE @ 7 keV and 55% DCE @ 1 keV with our new Low keV Entrance Window (LKW)
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To be combined with our Standalone 4-Channel Preamplifier as a whole detector module. This preamplifier with the compact size of 33 mm x 29 mm x 5.5 mm is suitable for applications with restricted space around the BSD diode. It is equipped with two flex lead cables to be connected to our Standard BSD from one side and to the Main Amplifier from the other side. Or you use our Advanced Module with the electronics integrated.
The Standalone 4-Channel Preamplifier equipped with two flex lead cables to be connected to any type of our Standard BSDs
The Low keV Entrance Window (KLW) reaches values of 55% at 1 keV and 70% at 2 keV.
Geometric collection efficiency vs. distance between detector housing and specimen (selection)
Compositional BSE images of a tin ball on carbon cross section observed at 10 keV beam energy (left) and 3 keV beam energy (right).
Overview of the different types of PNDetector’s BSD chips:
| Type | Total active area | Number of segments | Number of rings | Central hole diameter | Outer Diameter | Max. Geometrical Collection efficiency | Signal capacitance per cell @ full depletion |
|---|---|---|---|---|---|---|---|
| BSD-40-4-1-10 | 40 mm² | 4 | 1 | 1.0 mm | 9 mm | 50 % | 3 pF |
| BSD-50-4-1-56 | 50 mm² | 4 | 1 | 5.6 mm | 12 mm | 20 % | 4 pF |
| BSD-80-4-1-20 | 80 mm² | 4 | 1 | 2.0 mm | 12 mm | 50 % | 6 pF |
| BSD-150-4-1-20 | 150 mm² | 4 | 1 | 2.0 mm | 16 mm | 65 % | 11 pF |
| BSD-150-4-1-50 | 150 mm² | 4 | 1 | 5.0 mm | 16 mm | 45 % | 10 pF |
| BSD-150-2-2-20 | 150 mm² | 4 | 2 | 2.0 mm | 16 mm | 65 % | 11 pF |
| BSD-420-4-1-05 | 420 mm² | 4 | 1 | 0.5 mm | 24 mm | 87 % | 32 pF |
| BSD-420-4-1-10 | 420 mm² | 4 | 1 | 1.0 mm | 24 mm | 85 % | 32 pF |
| BSD-420-4-1-20 | 420 mm² | 4 | 1 | 2.0 mm | 24 mm | 74 % | 31 pF |
| BSD-420-4-1-54 | 420 mm² | 4 | 1 | 5.4 mm | 24 mm | 56 % | 30 pF |
Choose the geometry that fits your needs:
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The STD-BSD-40-4-1-10 Detector
40 mm² active area
4 segments and 1 ring
1 mm central hole diameter
4 segments and 1 ring
1 mm central hole diameter
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The STD-BSD-50-4-1-56 Detector
50 mm² active area
4 segments and 1 ring
5.6 mm central hole diameter
4 segments and 1 ring
5.6 mm central hole diameter
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The STD-BSD-80-4-1-20 Detector
80 mm² active area
4 segments and 1 ring
2 mm central hole diameter
4 segments and 1 ring
2 mm central hole diameter
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The STD-BSD-150-4-1-20 Detector
150 mm² active area
4 segments and 1 ring
2 mm central hole diameter
4 segments and 1 ring
2 mm central hole diameter
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The STD-BSD-150-4-1-50 Detector
150 mm² active area
4 segments and 1 ring
5 mm central hole diameter
4 segments and 1 ring
5 mm central hole diameter
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The STD-BSD-150-2-2-20 Detector
150 mm² active area
2 segments and 2 rings
2 mm central hole diameter
2 segments and 2 rings
2 mm central hole diameter
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The STD-BSD-420-4-1-05 Detector
420 mm² active area
4 segments and 1 ring
0,5 mm central hole diameter
4 segments and 1 ring
0,5 mm central hole diameter
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The STD-BSD-420-4-1-10 Detector
420 mm² active area
4 segments and 1 ring
1 mm central hole diameter
4 segments and 1 ring
1 mm central hole diameter
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The STD-BSD-420-4-1-20 Detector
420 mm² active area
4 segments and 1 ring
2.0 mm central hole diameter
4 segments and 1 ring
2.0 mm central hole diameter
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The STD-BSD-420-4-1-54 Detector
420 mm² active area
4 segments and 1 ring
5.4 mm central hole diameter
4 segments and 1 ring
5.4 mm central hole diameter
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The Standalone Preamplifier
Low noise preamplifier
driving 4 channels
driving 4 channels