Nuclear imaging test phantom Gamma Probe

for PET and SPECTgeneral purposepediatric

Overview
This intraoperative gamma probe test phantom enables reproducible commissioning baseline measurements and routine quality control for gamma probes used in surgical environments. It is designed for controlled evaluation of probe sensitivity, spatial and angular resolution, and count-rate performance in air and in a scatter medium.

Components

• Main tank allowing tests in air and in a scatter medium;
• Two radioactive source holder rigs for angular and spatial resolution measurements, with adapters for sealed pen sources and an optional small fillable sphere for unsealed sources (typically Tc‑99m);
• Gamma probe holder with interchangeable inserts to accommodate probe ends with and without collimators.

Supported tests (per NEMA NU 3‑2004)

• Sensitivity in air;
• Sensitivity in a scatter medium;
• Spatial resolution in a scatter medium;
• Volume sensitivity to distributed activity in a scatter;
• Short‑term sensitivity stability;
• Sensitivity to scatter;
• Count rate capability in a scatter medium;
• Angular resolution in a scatter medium.

Specification

• Main tank outer dimensions: 360 mm × 360 mm × 210 mm;
• Liquid source holder volume: 0.2 mL;
• Axial source-to-probe tip displacements available: 10 mm, 30 mm, 50 mm;
• Designed to accommodate radioactive pen sources <10 mm diameter;
• Angular and spatial resolution rigs included with clear markings for axial and lateral displacements;
• Probe/collimator tip adapters for tip ends 8–20 mm diameter;
• Variable field-of-view designs available on request.

Comes with

• Detailed user manual.

Compliance

• NEMA NU 3‑2004;
• IPEM Report 85 (2022): Radioactive Sample Counting: Principles and Practice (Institute of Physics and Engineering in Medicine).

Technical specifications

• Tank outer dimensions: 360 mm × 360 mm × 210 mm;
• Liquid source holder capacity: 0.2 mL;
• Axial displacements between source and probe tip: 10 mm, 30 mm, 50 mm;
• Supports sealed and unsealed sources (including small fillable sphere for Tc‑99m) and pen sources (e.g., Co‑57);
• Probe tip adapters accept 8–20 mm diameters (with and without collimators);
• Includes angular and spatial resolution rigs with marked displacements;
• Designed for NEMA NU 3‑2004 tests including sensitivity, spatial resolution, count‑rate capability and angular resolution in scatter and air.