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Troy Zhou, PhD, DABR
Troy Zhou, PhD, DABR March 20, 2026 • 21 min read

Beyond the Geiger Counter: Choosing the Right Radiation Survey Meter in Medical Physics

Not all radiation survey meters are designed for the same job. Understanding how GM meters, ion chambers, hybrid survey meters, x-ray survey sensors, and imaging survey meters work can help facilities choose the right tool for contamination control, leakage surveys, and shielding verification.

Dr. Troy Zhou
Dr. Troy Zhou March 10, 2026 • 10 min read

Sentinel Events vs Serious Reportable Events: What Joint Commission Alignment Means for Hospitals

A practical overview of sentinel events and serious reportable events, including the 2026 Joint Commission policy baseline, the updated NQF SRE framework, and what the 2027 alignment means for hospitals, radiology, MRI, nuclear medicine, and radiation therapy.

Dr. Troy Zhou
Dr. Troy Zhou June 3, 2025 • 4 min read

Occupational Exposure Monitoring Programs

How to design and maintain an effective occupational radiation monitoring program in healthcare.

Dr. Troy Zhou
Dr. Troy Zhou June 2, 2025 • 3 min read

Sweep: Best Practices for Decontamination in Nuclear Medicine

Physics Pulse Series on nuclear medicine decontamination: practical steps to safely manage radioactive spills while ensuring regulatory compliance and staff protection.

Dr. Troy Zhou
Dr. Troy Zhou May 12, 2025 • 5 min read

Lead Shielding Design Principles in Diagnostic Imaging and Nuclear Medicine

Lead shielding design principles for CT, fluoroscopy, interventional radiology, PET/CT, and radionuclide therapy—workload, use factor, occupancy, and barrier design.

Dr. Di Zhang
Dr. Di Zhang February 20, 2025 • 4 min read

Common Radiation Safety Violations and How to Avoid Them

A guide to the most common radiation safety violations identified during inspections and how imaging centers can proactively prevent them.

Ramses Herrera Habsburg
Ramses Herrera Habsburg February 20, 2025 • 3 min read

NRC Radioactive Material License Guide

Comprehensive guide to NRC radioactive material licensing for medical facilities, including application requirements, license types, and compliance obligations.

Nick Wellnitz
Nick Wellnitz February 20, 2025 • 3 min read

PET/CT Shielding Calculations Guide

Comprehensive guide to PET/CT shielding calculations, including gamma radiation considerations, shielding materials, and design principles.

Dr. Jiali Wang
Dr. Jiali Wang February 20, 2025 • 3 min read

Florida Radiation Safety Requirements for Imaging Centers

Comprehensive guide to Florida radiation safety requirements for imaging centers, including state regulations, compliance obligations, and best practices.