High-Resolution Detector with Cooler, Electronics, MCA and USB
The ORTEC Interchangeable Detector Module or IDM is a gamma-ray
detection “building block.” The IDM is a completely self-contained
subsystem, comprising a single, mechanically cooled high-purity
germanium (HPGe)
detector of standardized crystal dimensions and all
necessary electronics in a RUGGED package. It is everything needed
to detect gamma rays and send the energy histogram or digitized pulse
stream to a PC for analysis. An IDM can be used in a variety of
systems where nuclide identification/monitoring is needed. IDMs are
designed for long, reliable service, and are interchangeable. An IDM
can be swapped out for service quickly, resulting in high system
availability and limiting down time to an absolute minimum. The IDM is
light enough to be installed by one person. For OEM applications,
ORTEC CONNECTIONS-32 programmers toolkits are available.
IDM Feature Summary
HPGe Detector
• High low-energy efficiency
• Uniform
detector size
• High cooling capacity with highly reliable Stirling cooler
• Integrated high voltage supply
Digital MCA
• 16k channels
• Histogram mode
• Streaming list mode
USB Connection
• High speed connection
• Mains powered
• Can operate without PC connection if required
IDM Benefits
• Large area 85 mm x 30 mm HPGe crystal
• High-reliability Stirling cycle cooler cools rapidly to operating
temperature
• Hardened cryostat designed for long operational life
• Can be temperature cycled at any time, even from partial warm up
• High performance, digitally stable signal processing
• “Hot swap” of IDM modules while in operational state – reduced
downtime
• USB 2.0 data communications
• Continuous data collection, no dead spots, using list mode
• Low power consumption
• Low Frequency Rejector (LFR) improves spectrum resolution in noisy
environments
Detective-ASP Series
HPGe Interchangeable Detector Module (IDM)
ORTEC®
Intelligent, Modular Solutions to Portal Monitoring System Needs for
Illicit Nuclear and Radiological Material Interdiction
Figure 1. Interchangeable Detector Module (IDM).
Figure 2. IDMs mounted in cabinet.
