Capintec Graves Phantom | Water-Equivalent Quantitative SPECT

The Capintec Graves Phantom is a water-equivalent cylindrical calibration phantom for quantitative SPECT (qSPECT) and dosimetry in radiopharmaceutical therapy (RPT). Developed with Dr. Stephen Graves of the University of Iowa, it mimics patient size, attenuation, and scatter conditions, allowing system sensitivity to be measured for each radionuclide. Supplied with six 250 ml lab bottles for radionuclide interchangeability. Manufactured by Capintec and supplied by Meditronix Corporation in India.
 
Key Features:
Water-equivalent cylindrical geometry that mimics patient attenuation and scatter
Quantifies SPECT system sensitivity factors for accurate counts-to-activity conversion
Realistic scatter conditions not fully corrected by dual- or triple-energy window methods
Central cavity accepts a 250 ml lab bottle flush with the surface
Radionuclide interchangeability through lab bottles, avoiding long-lived phantom contamination
Solid phantom design retains consistent measurement conditions
Crosshair scribe lines at 50 mm for positioning reference
 
Applications:
Quantitative SPECT system calibration
Radiopharmaceutical therapy dosimetry
Sensitivity measurement for each radionuclide
Compliance with AAPM Task Group 417 guidance for RPT dosimetry calibration
Clinical and research qSPECT workflows
 
Specifications:
Material: XL Solid Water (water-equivalent)
Nominal physical density: 1.03 g/cm³
Nominal electron density: 3.35 x 10²³ e⁻/cm³
Dimensions: 200 mm diameter x 200 mm depth
Weight: 6.1 kg (13 lb)
Central cavity: 250 ml (8 oz) lab bottle
Supplied with: 6 bottles, each 250 ml
Extra bottle sets (6 pieces) available
 
Manufactured by Capintec. Supplied and serviced by Meditronix Corporation in India.