IS230SNRLH2A | Neutron Flux Monitoring Module

Key Features and Advantages

Precision Neutron Flux Monitoring: The IS230SNRLH2A provides highly accurate neutron flux measurement with ±0.5% accuracy across 15 orders of magnitude, enabling precise reactor power control and protection.

Multi-Channel Redundancy: Four independent measurement channels with automatic cross-validation ensure continuous monitoring even during single-channel failures, enhancing nuclear safety system reliability.

Advanced Signal Processing: Sophisticated algorithms compensate for detector aging, temperature effects, and gamma radiation interference, maintaining measurement accuracy throughout the fuel cycle.

Safety-Certified Design: Compliant with IEC 61508 SIL 2 safety standards, the module features redundant power supplies, fail-safe circuitry, and continuous self-diagnostics for critical nuclear applications.

Seismic Qualification: Tested to IEEE 344 seismic requirements, the IS230SNRLH2A maintains functionality during seismic events, ensuring continuous reactor monitoring.

Application Fields

The IS230SNRLH2A provides essential neutron flux monitoring in nuclear power generation. In pressurized water reactors (PWRs), it measures in-core neutron flux for reactor power indication and control. Boiling water reactors (BWRs) utilize this module for startup range monitoring and source range detection.

Research reactor applications include flux mapping for experimental irradiation and fuel testing. Nuclear fuel processing facilities deploy the IS230SNRLH2A for criticality monitoring in fuel handling areas. Its safety-certified design makes it suitable for reactor protection systems where reliable neutron flux measurement is critical for safe shutdown functions.

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Installation and Maintenance

Installation Preparation: Before installing the IS230SNRLH2A, verify Class 1E seismic qualification requirements. Follow strict electrostatic discharge (ESD) procedures. Ensure proper cable routing and segregation from non-safety systems. Perform initial calibration with neutron source simulation equipment.

Maintenance Recommendations: Perform channel calibration annually using precision pulse generators. Verify module diagnostics through safety monitoring system interface. Replace detector interface cables every 5 years due to radiation-induced aging. For firmware updates, follow GE nuclear technical bulletins and quality assurance procedures.