Internal Battery Kit
Hot-swappable internal Li-ion batteries, 2 batteries and 1 charger per package. Each battery provides about 4 hours of field operation on the Fulcrum and 2.5 hours on the GeGI 5.
Key Features
- Higher low-energy efficiency than conventional 40% detectors, from a large-area crystal
- Optional neutron detection for combined gamma/neutron SNM
- 10-hour operation on hot-swappable dual batteries, continuous in the field
Application Areas
Non-Destructive Assay
Quantify isotope activity in sealed containers including drums, B-25 boxes, and cargo containers using HPGe spectroscopy with ISOTAC geometry-corrected NDA calculations.
Learn more
Safeguards
Identify and quantify special nuclear materials at declared and undeclared facilities using HPGe isotope ID and quantitative assay without destructive sampling.
Learn more
Emergency Response
Definitive isotope ID at standoff, in seconds
Learn more
Interface
OMNI Spectral View
Omni Source Search
Accessories
Options and field kit for the Fulcrum-40h
Field kit
11Power, shielding, mounting, and transport that keep the instrument measuring through a full shift.
External BB-2590 Battery Kit
External BB-2590 Li-ion battery package: 2 batteries, 1 charger, and cables, for powering the instrument for extended periods on battery. Each battery provides about 4 to 5 hours of field operation.
Pelican Shipping Case
Pelican shipping case for the instrument and its accessories.
Lightweight Tripod
Lightweight tripod to support the instrument. The GeGI 5 version includes a base plate for pinhole imaging; manual operation.
GeGI tripod requires the Pinhole Imaging Platform.
QuantiCart
Mobile HPGe gamma-ray NDA cart with variable detector height (16 to 45 in) and angle (0 to 180 degrees). Includes a 2 in thick Pb side shield with 30-, 60-, and 90-degree apertures.
For use with WinOMNI and ISOTAC NDA software.
IP65 Field Housing
IP65-rated protective housing for the Fulcrum and Fulcrum-40h.
Pb Shot Shield
Nylon shell with a 2 in void to be filled with No. 7 Pb shot (shot not included). 100 cc sample chamber; custom chambers available. Horizontal or vertical mount, selected at order.
Requires WinOMNI.
Tungsten Side Shield
6 mm copper-lined tungsten collar that slips over the outer edge of the detector for side shielding and collimation.
QuantiCart Aperture Shields
Individual 2 in (5 cm) Pb QuantiCart shields with 30-, 60-, or 90-degree acceptance angles, priced each.
Low-Energy Shield
Low-energy shield: a tin (Sn) disc held in place on the front edge of the detector.
Windows Laptop
Windows laptop for Fulcrum and Fulcrum-40h operation.
Spares & consumables
3Replacement parts and per-measurement supplies.
Marinelli Beakers, 2 L
2 L Marinelli beakers for the Fulcrum and Fulcrum-40h. Package of 10.
Power Supplies & Cables
Replacement power supplies, DC vehicle power cables, battery cables, and a vehicle power inverter for the GeGI and Fulcrum.
Straps & Comms
Shoulder straps for the GeGI and Fulcrum, and a Bluetooth headset for the GeGI, Fulcrum, and LoPro.
Full Specifications
Detector
| Detector type | HPGe (High-Purity Germanium) |
|---|---|
| Relative efficiency | 40%@ 1332 keV |
| Crystal Dimensions | 85mm x 30mm |
| Energy Range | 40 keV - 3 MeV (with 12 MeV option) |
| Optional Neutron Detector Efficiency | 1.2 cps/nv |
Physical
| Dimensions | 10" x 6" x 9"25 cm x 15 cm x 23 cm |
|---|---|
| Field Weight | 11 lbs (5 kg)with batteries installed |
Cooling
| Cooler type | Long-life Stirling Cycle |
|---|---|
| Cool-down time | ~5 hrroom temperature to operating temperature |
Power
| Power Supply | 100-240 VAC, 50-60 Hz |
|---|---|
| Dual battery (hot-swappable) | ~10 hr |
| BB2590 external battery | +15 hrs operational time |
Electronics & Software
| Software | Onboard OMNIAndroid |
|---|---|
| Data output format | ANSI N42.42, SPE, CHN, CSV, TXT |
| Wireless | YesWiFi |
| Isotope Library | 95 user-selectable isotopes (can add other isotopes upon request) |
| Number of MCA Channels | Up to 64k |
Technical Notes
Methodology
How reliable are PHDS mechanical coolers? Field data from 1,300 cooler-years
Counting every repair return as a failure, field data from 264 PHDS coolers supports a cooler MTTF of 1.8 million operating hours: about a 0.4% chance of a repair in any year of service.
October 2026
Read
Application Note
Fulcrum-40h response to the 2022 and 2026 Sandia evaluations against NEST HPGe requirements
Current Fulcrum-40h firmware makes energy resolution independent of count rate and matches the Detective-X pile-up correction to 30 kcps, addressing the open items from Sandia's 2026 NEST HPGe reassessment.
October 2026
Read
Third-Party Testing
Sandia National Lab: Fulcrum-40h and ORTEC Detective-X HPGe Performance Assessment (2022)
Sandia's NNSA-funded head-to-head found the Fulcrum-40h averages at least 20% higher gamma efficiency below 300 keV than the Detective-X, with comparable energy resolution.
December 2022
Read summary
Downloads