Tomography test phantom CTDI

for CT scantorsohead

Overview
The CTDI Head and Body Phantom in PMMA is a cylindrical set designed for measuring the CT dose index (CTDI) and dose-length product (DLP) on computed tomography systems. Compliant with IEC 61223-3-5 and IEC 61223-2-6, it enables dosimetric performance evaluation and constancy checks of clinical CT protocols.

Contents of the set

• One head module, 160 mm diameter
• One body module, 320 mm diameter
• Thickness of each module: 150 mm

Cavity details and accessories
Each module includes ports for CTDI-100 ionization chambers: one central port and peripheral ports. Acrylic plugs are supplied to seal unused cavities and engraved alignment axes facilitate centering on the examination table. Peripheral ports are arranged at 90° and positioned 10 mm from the outer edge.

Intended uses

• CT dose measurement (CTDI)
• Measurement of dose-length product (DLP)
• Validation of protocols and constancy control in CT
• Studies of dose reproducibility and dosimetric assessment

Available models

• VD1003110 - CTDI Head and Body Dose Measurement Phantom
• VD0225250 - Transport case with interior fittings

Technical specifications

• Compliance: IEC 61223-3-5 and IEC 61223-2-6
• Head phantom: external diameter 160 mm, with 5 cavities
• Body phantom: external diameter 320 mm, with 4 cavities
• Thickness of each module: 150 mm
• Ports for CTDI-100 chambers: one central and peripheral (four peripheral at 90° as described)
• Position of peripheral ports: 10 mm from the outer edge
• Acrylic plugs supplied to close unused cavities
• Engraved axes to facilitate centering on the examination table
• Includes 9 acrylic inserts
• Intended use: CTDI and DLP measurement, protocol validation, constancy control, dose reproducibility studies