ISO-CART-II LN2

Mobile in-situ assay systems with LN₂-cooled HPGe detectors

Complete in-situ gamma assay systems with the ISO-CART-II cart and an ORTEC LN₂-cooled HPGe detector, typically a large GEM (p-type) or GMX (n-type). The detector and collimator sit on a carrier that can be lifted off and carried where the cart cannot go. Supplied integrated, tested and factory calibrated with digiDART, ISOPLUS and laptop.

Detector type
ORTEC LN₂-cooled HPGe detectors, typically large-volume GEM (p-type) or GMX (n-type); relative efficiencies over 200% available1
Datasheet

Specifications checked against the manufacturer’s documents on 2026-10-17

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

Overview

Key features

  • All-attitude dewars: 3.0 L Gamma Gage or 7.0 L MOD
  • Existing detectors can be used
  • Optional airworthy roll-in transport box for the complete system

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 typeORTEC LN₂-cooled HPGe detectors, typically large-volume GEM (p-type) or GMX (n-type); relative efficiencies over 200% available1
ModelsWith GEM25, GEM40, GEM60, GEM80, GEM100, GEM120, GMX25, GMX40, GMX60 or GMX80 (ISOCART-…-DDD; DDD = 3.0 for 3.0 L Gamma Gage or M7L for 7.0 L MOD)1
CoolingLiquid nitrogen; all-attitude 3.0 L Gamma Gage dewar or 7.0 L multi-orientation dewar (MOD)1
CollimatorSHD-1: lead 1.6 cm thick, 20.3 cm long with 2 mm copper liner, 16.82 kg; SHD-3: lead 4.6 cm thick, 20.3 cm long, for high radiation areas, 68 kg1
ElectronicsdigiDART: acquires data stand-alone in the field or performs a complete analysis with a notebook computer1
ContentsPneumatic-tyred cart, 5/8 in copper-lined lead collimator, detector/collimator carrier, shelf, HPGe detector with SMART-1, digiDART, ISOPLUS and laptop; integrated, tested and factory calibrated1
OptionsLaser range finder (accuracy 3 mm), platform scale, transport case and airworthy roll-in box for the complete system1

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

Documents

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. 1
    Publisher: ORTEC (AMETEK)Product page Overview; Dewar Options; Ordering Information; Dewar Options; More Information … Checked 2026-10-16
ISO-CART-II
ORTEC

ISO-CART-II

Cart for mobile in-situ gamma measurements

Weight
63.5 kg
6 referenced values
GEM HPGe-detektorer
ORTEC

GEM HPGe-detektorer

HPGe detectors for gamma spectroscopy

Energy range
Approximately 40 keV and above
Relative efficiency
10–150% across the model series; higher on request
Energy resolution at 122 keV
FWHM maximum limits 0.80–1.30 keV for GEM10–GEM150; model-dependent
17 models
GAMMA-X (GMX) HPGe-detektorer
ORTEC

GAMMA-X (GMX) HPGe-detektorer

HPGe gamma detector

Energy range
Approximately 5 keV–10 MeV
Relative efficiency
10–100%; higher on request
Energy resolution at 122 keV
FWHM maximum limits 0.85–1.40 keV for GMX10–GMX100; model-dependent; optimal shaping with DSPEC-50A
12 models
Safeguards planar HPGe-detektor
ORTEC

Safeguards planar HPGe-detektor

Planar HPGe gamma detector

Detector type
Planar HPGe
Energy resolution at 122 keV
Warranted FWHM for SGD-16550P4: 550 eV at 1 kcps, 6 μs; 615 eV at 50 kcps, 1 μs
7 models
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