Manufacturer: Thermo Fisher Scientific (formerly FEI)
OEM Part No.: 1032699 (lens-mounted DBS detector) - also labelled 1005713 “DBS Detector Assy”
Type: Directional Back-Scatter (DBS) electron detector, 4-segment, lens-mounted
Compatible instruments (verify for your system!): Apreo & Apreo 2, Helios NanoLab / Helios G4, Scios, Prisma, Nova NanoSEM, Quanta (late models) and other FEI/Thermo Fisher SEM or DualBeam microscopes that accept the lens-mounted DBS head.
Unit was kept as a spare; Channel A is non-functional (hand-marked on the original ESD pouch).
The other three segments powered up and produced signal in the donor tool, but full performance has NOT been verified.
Sold AS-IS, no returns, no warranty. Ideal for spare parts, re-bond/re-wire projects, or training.
Physical: Very clean; gold-plated sensor face shows no burn marks. Cable, 10-pin header and aluminum housing in good cosmetic shape (see photos).
Lens-mounted DBS detector head with attached braided lead and 10-pin micro-header (exact unit pictured).
Original clean-room clamshell & ESD pouch with OEM labels.
| Parameter | Value |
|---|---|
| Detector type | Silicon p-i-n diode, 4 concentric segments |
| Mounting | Under objective lens; magnetic “bayonet” style cartridge |
| Signal outputs | 4 × independent back-scatter channels |
| Typical bias | +12 V (regulated on-board) |
| Operating vacuum | Down to 1 × 10⁻⁷ mbar (SEM/FIB chamber) |
(Specs listed for reference only; not all functions currently operational.)
Feel free to ask any questions and we will do our best to get back to you promptly