ISOTOPIC Gamma Waste Assay Software

• Advanced gamma spectrometry software for radioactive waste assay and characterization
• Designed for large-scale waste container analysis and site characterization projects
• Optimized for HPGe detector systems (high-resolution gamma spectroscopy)
• Supports multiple measurement geometries (drums, boxes, pipes, soil, surfaces)
• Uses advanced point-kernel modeling (Monte Carlo–like approach) for accurate activity estimation
• Built-in templates for container and environmental measurements
• Enables multi-measurement averaging for improved accuracy
• Integrated quality assurance (ANSI N13.30 compliant)
• Compatible with mobile systems (e.g., ISO-CART) and automated waste assay systems
• Supports custom reporting, database storage, and automation workflows

ISOTOPIC is a specialized gamma spectroscopy software platform designed for radioactive waste assay, site characterization, and environmental radiation measurement.

Developed based on methodologies from the U.S. Department of Energy (DOE) and Environmental Measurements Laboratory (EML), ISOTOPIC provides a proven and reliable solution for nondestructive assay (NDA) of radioactive materials in complex real-world scenarios.

The software is engineered to handle large and heterogeneous samples, such as:

• Waste drums and containers
• Pipes and industrial components
• Contaminated soils and surfaces

At its core, ISOTOPIC uses a sophisticated point-kernel calculation model, which breaks down the sample into multiple elements (voxels) and calculates their contributions to the measured spectrum. This approach delivers high accuracy without requiring complex Monte Carlo calibration, reducing both cost and setup time.

A key strength of the system is its flexibility in handling different measurement geometries, including:

• Close geometry (small containers)
• Collimated measurements (pipes, surfaces)
• Wide-area soil contamination (EML methodology)

ISOTOPIC also supports multi-measurement workflows, allowing users to combine results from different detector positions or multiple detectors, producing weighted average results with improved confidence.

The software is designed for both field and laboratory environments, with:

• Operator Mode → simplified workflow for routine measurements
• Supervisor Mode → full system configuration and calibration control

This structure ensures that even non-expert users can perform reliable measurements while maintaining high-quality, audit-ready results.

Core Functions
Gamma spectrum acquisition and analysis
Radioactive waste assay and quantification
Multi-geometry measurement modeling

Measurement Capabilities
Supported geometries:

• Drums, boxes, pipes
• Small containers (close geometry)
• Wide-area soil and surface contamination

Multi-measurement combination (weighted averaging)
Detector positioning and geometry modeling

Analysis Features
Peak search:

• Library-driven
• Mariscotti algorithm

Peak deconvolution and interference correction
Activity calculation (Bq, µCi, grams of U/Pu)
Multiple detection limit (MDA) calculation methods

Calibration & Modeling
Single point-source calibration (traceable)
Semi-empirical efficiency calibration
Point-kernel modeling for geometry/matrix correction
Soil calibration using EML 1-meter methodology

Corrections & Adjustments
Matrix attenuation correction
Geometry correction
Decay correction (forward/backward in time)
Background and peak interference correction

Automation & Workflow
Operator / Supervisor modes
Wizard-based system setup
Automated measurement workflows
Command-line integration for system automation

Data & Reporting
Database: Microsoft Access-compatible
Reporting options:

• Standard reports
• Crystal Reports
• HTML export

Full traceability of parameters and corrections

Hardware Integration
Compatible with ORTEC MCA systems
Ideal for HPGe systems (e.g., portable spectrometers)
Supports automated and mobile systems (ISO-CART platforms)

Platform
Windows-based (64-bit compatible)
Supports USB and TCP/IP-connected hardware

• Radioactive waste assay and characterization
• Nuclear decommissioning projects
• Environmental radiation monitoring
• Soil contamination assessment
• Nuclear safeguards and compliance
• Site remediation and cleanup verification
• Field-based radiation surveys