PET and SPECT test phantom ECT/HS/MMP

for nuclear imagingfor tomographygeneral purpose

Description
The Micro Hollow Sphere Phantom (ECT/HS/MMP) is a high-precision cylindrical phantom designed for evaluation of small-field PET/SPECT systems (FOV > 45 mm) and ultra-high-resolution ECT cameras (≤ 3 mm FWHM). It contains refillable hollow microspheres to simulate small hot or cold lesions and to study spatial resolution effects, reconstruction performance and detectability of very small objects. The lid includes five mounting positions (one central + four peripheral) to provide a reproducible configuration for quantitative measurements. Manufactured in transparent PMMA, the phantom ensures geometric stability and clear visibility of the internal arrangement.

Applications

• Evaluation of small-animal and small-field imaging systems (FOV > 45 mm)
• Testing ultra-high-resolution ECT systems (≤ 3 mm FWHM)
• Simulation of micro hot/cold lesions
• Measurement of spatial resolution and object-size effects
• Validation of quantitative reconstruction methods
• Research in nuclear imaging

Characteristics
Materials:

• Transparent PMMA (cylinder + lid)
• Solid PVC support rods (Ø ~3 mm)

Cylinder:

• External diameter: ~51 mm
• Internal diameter: ~40 mm
• Internal height: ~82 mm
• External height: ~114 mm
• Internal empty volume: ~408 mL

Lid (micro-sphere positions):

• Number of positions: 5 (1 central + 4 peripheral)
• Distance of peripheral positions from center: 12.7 mm
• Distance center sphere → mounting surface: ~53 mm (inside cylinder)

Hollow micro-spheres:

• External diameters: ~6 mm, ~7 mm, ~8 mm, ~10 mm
• Corresponding volumes: ~31 μL, ~63 μL, ~125 μL, ~250 μL

Support rods:

• Diameter: ~3 mm
• Length: ~38 mm

Models

• 010295 - Micro Hollow Sphere Phantom ECT/HS/MMP

Technical specifications

• Model name: ECT/HS/MMP
• Model code: 010295
• Materials: Transparent PMMA (cylinder + lid); solid PVC support rods
• Cylinder external diameter: ~51 mm
• Cylinder internal diameter: ~40 mm
• Internal height: ~82 mm
• External height: ~114 mm
• Internal empty volume: ~408 mL
• Number of micro-sphere positions: 5 (1 central + 4 peripheral)
• Distance of peripheral positions from center: 12.7 mm
• Distance center sphere → mounting surface: ~53 mm
• Micro-sphere external diameters: ~6 mm, ~7 mm, ~8 mm, ~10 mm
• Micro-sphere volumes: ~31 μL, ~63 μL, ~125 μL, ~250 μL
• Support rod diameter: ~3 mm; length: ~38 mm
• Main applications: small-field PET/SPECT evaluation, ultra-high-resolution ECT testing, micro-lesion simulation, spatial resolution measurement, quantitative reconstruction validation, nuclear imaging research