ORTEC A Series

Partially depleted silicon surface-barrier detectors

ORTEC A Series comprises 29 models (partially depleted silicon surface-barrier detectors). The models differ in active area, depletion depth and warranted resolution, among other things – compare them in the model table.

Detector type: Partially depleted silicon surface barrier1

Download product sheet (PDF)All values with references – for tender documents

Specifications checked against the manufacturer’s documents on 2026-10-16

Manufacturer’s product page (opens in a new tab)

Overview

Nuclear power & nuclear technology Research & laboratories Environmental monitoring & radiation protection

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Detector type	Partially depleted silicon surface barrier1
Resolution measurement conditions	²⁴¹Am, 5.486 MeV alphas; standard ORTEC electronics; 0.5 µs shaping time constants1
Measurement and warranty temperature	21 ±1 °C2
Resolution reference geometry	Thin-window point source; distance at least 2 times the detector diameter2
Mount options per product guide	A/B/C3
Alpha Suite compatibility	Not guaranteed compatible; requires an approved special for compatibility and warranted specifications3

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Models

29 models in the series. Filter or scroll the table to compare.

29 / 29

Model	Minimum active area3	Guaranteed maximum alpha resolution4	Minimum depletion depth4	Ordering condition1
A-013-025-1000	≥25 mm²	≤13 keV FWHM	≥1000 µm	–
A-014-025-1000	≥25 mm²	≤14 keV FWHM	≥1000 µm	–
A-014-025-1500	≥25 mm²	≤14 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-014-050-1000	≥50 mm²	≤14 keV FWHM	≥1000 µm	–
A-014-100-1000	≥100 mm²	≤14 keV FWHM	≥1000 µm	–
A-015-050-1000	≥50 mm²	≤15 keV FWHM	≥1000 µm	–
A-015-100-1000	≥100 mm²	≤15 keV FWHM	≥1000 µm	–
A-015-150-1000	≥150 mm²	≤15 keV FWHM	≥1000 µm	–
A-016-025-1500	≥25 mm²	≤16 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-016-025-2000	≥25 mm²	≤16 keV FWHM	≥2000 µm	This depth requires special order according to manufacturer
A-016-050-1500	≥50 mm²	≤16 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-016-150-1000	≥150 mm²	≤16 keV FWHM	≥1000 µm	–
A-017-050-2000	≥50 mm²	≤17 keV FWHM	≥2000 µm	This depth requires special order according to manufacturer
A-017-100-1500	≥100 mm²	≤17 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-017-300-1000	≥300 mm²	≤17 keV FWHM	≥1000 µm	–
A-018-050-1500	≥50 mm²	≤18 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-018-100-2000	≥100 mm²	≤18 keV FWHM	≥2000 µm	This depth requires special order according to manufacturer
A-018-150-1500	≥150 mm²	≤18 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-018-300-1000	≥300 mm²	≤18 keV FWHM	≥1000 µm	–
A-018-450-1000	≥450 mm²	≤18 keV FWHM	≥1000 µm	–
A-019-100-1500	≥100 mm²	≤19 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-019-150-2000	≥150 mm²	≤19 keV FWHM	≥2000 µm	This depth requires special order according to manufacturer
A-019-450-1000	≥450 mm²	≤19 keV FWHM	≥1000 µm	–
A-020-150-1500	≥150 mm²	≤20 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-020-300-1500	≥300 mm²	≤20 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-021-450-1500	≥450 mm²	≤21 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-022-300-2000	≥300 mm²	≤22 keV FWHM	≥2000 µm	This depth requires special order according to manufacturer
A-023-300-1500	≥300 mm²	≤23 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer
A-026-450-1500	≥450 mm²	≤26 keV FWHM	≥1500 µm	This depth requires special order according to manufacturer

Documents

PDFA Series – Partially Depleted Silicon Surface Barrier Detectors (brochure 25-1020)Datasheet · ORTEC

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

1
A Series Partially Depleted Silicon Surface Barrier Radiation Detector
Publisher: ORTEC (AMETEK)Product page Page heading; Ordering Information, footnote **; Ordering Information, column header "Minimum Depletion Depth 1500 µm§" and footnote §; Ordering Information, column header "Minimum Depletion Depth 2000 µm§" and footnote § Checked 2026-10-16
2
Introduction to Charged-Particle Detectors
Publisher: ORTEC (AMETEK)Application note p. 8, "Test Data and General Information – Alpha Resolution"; p. 3, "Energy Resolution and Noise" Checked 2026-10-16
3
ORTEC Product Guide
Publisher: ORTEC (AMETEK)Product catalogue PDF p. 11 (printed p. 8), table "Standard Mounting Information"; PDF p. 11 (printed p. 8) "Ordering Information"; same note on the series table page; PDF p. 5 (printed p. 2), table "A Series Partially Depleted Silicon Surface Barrier Detectors"; PDF p. 11 (printed p. 8) Checked 2026-10-16
4
A Series – Partially Depleted Silicon Surface Barrier Detectors (brochure 25-1020)
Publisher: ORTEC (AMETEK)Brochure p. 1, Ordering Information table, "Guaranteed Maximum Resolution (keV)**", α column; footnote **; p. 1, Ordering Information table, column "Minimum Depletion Depth 1000 µm"; p. 1, Ordering Information table, column "Minimum Depletion Depth 1500 µm§"; p. 1, Ordering Information table, column "Minimum Depletion Depth 2000 µm§" Checked 2026-10-16