12-MeV Energy Scale
A factory front-end modification that extends the energy scale to 12 MeV while keeping a 64k-channel spectrum, with conversion gain variable by factors of two. Reaches the high-energy gammas standard scales clip.
Key Features
- Superior Resolution: FWHM < 950 eV at 122 keV; < 1.9 keV at 1332 keV
- Continuous field operation via battery hot-swap
- 2-hour cool-down to operating temperature
Application Areas
Emergency Response
Definitive isotope ID at standoff, in seconds
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Safeguards
Identify and quantify special nuclear materials at declared and undeclared facilities using HPGe isotope ID and quantitative assay without destructive sampling.
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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.
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Interface
OMNI App Spectral Viewer
OMNI App Source Search
Accessories
Options and field kit for the Fulcrum
Capability upgrades
4Options that add a measurement mode to the instrument.
Neutron Counter
Adds thermal-neutron counting alongside gamma spectroscopy. Micro-structured semiconductor detectors with 6Li conversion reach about 30% thermal-neutron detection efficiency.
High Dose-Rate Mode
Extends usable operation at elevated gamma dose rates, so surveys keep producing spectra where a standard configuration would saturate.
GM Tube Dose-Rate Extension
Above roughly 5 mR/hr the instrument switches to the GM tube automatically and keeps reading dose rate to 1 Sv/hr, so one tool covers both survey and high-dose entry.
Field kit
11Power, shielding, mounting, and transport that keep the instrument measuring through a full shift.
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.
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
5Replacement parts and per-measurement supplies.
HEPA Filtration
HEPA filter adapters, brackets, and replacement filters. The adapter attaches with 4 screws; the filter is taped in for easy disposal after measurements.
Marinelli Beakers, 2 L
2 L Marinelli beakers for the Fulcrum and Fulcrum-40h. Package of 10.
Spare Internal Batteries
Single BB-2557 Li-ion internal batteries for the Fulcrum and LoPro.
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 | 12%@ 1333 keV (Co-60) |
| Crystal Dimensions | 60mm x 25mm |
| Energy Resolution | FWHM < 950 eV at 122 keV; < 1.5 keV at 662 keV; < 1.9 keV at 1332 keV |
Physical
| Weight (base) | 8 lbs (3.6 kg) |
|---|---|
| Dimensions | 8.0" x 5.0" x 6.0"20 cm x 13 cm x 15 cm |
Cooling
| Cooler type | Long-life Stirling Cycle |
|---|---|
| Cool-down time | ~2 hrroom temperature to operating temperature |
Power
| Power Supply | 100-240 VAC, 50-60 Hz |
|---|---|
| Internal battery | ~5 hr |
| BB2590 (mil-spec) battery | ~15 hr |
| Bridge battery option | Yesfor continuous field operation |
Electronics & Software
| Software | Onboard OMNIAndroid |
|---|---|
| Data output format | ANSI N42.42, SPE, CHN, CSV, TXT |
| Wireless Operation | YesWiFi |
| Isotope Library | 95 user-selectable isotopes (can add other isotopes upon request) |
| Number of MCA Channels | Up to 64k |
Downloads