CBCT Electron Density Phantom CIRS 062MA Cone Beam CT
Increase HU value Confidence for Adaptive RT

Features

The Cone Beam (CBCT) Electron Density Phantom is an extended version of the CIRS Model 062M Electron Density Phantom and specifically designed for Cone Beam CT Imaging systems. Preliminary data shows that there may be differences between the HU readings for Diagnostic CT and Cone Beam CT. The geometry of the Cone Beam CT requires additional material and suggests that off central axis measurements should be taken.

The phantom was designed in collaboration with Dr. Peter H. Cossmann, PhD to provide a reliable tool for CT number to electron density calibration in volumetric imaging. Reliable CT calibration curves help enable treatment plan adaptation directly from Cone Beam CT data. Additionally, the phantom can accommodate any ion chamber for dose measurements and validation of heterogeneity correction based on the corrected CT calibration curve.

The Model 062MA CBCT Electron Density Phantom's size covers geometries for imagers with dimensions of up to 40 cm x 40 cm. It is made of Plastic Water® and contains the same set of tissue equivalent electron density inserts as the standard Model 062. Additional interchangeable slabs allow for repositioning of the electron density section with an increment of 2.5 cm.

The 062MA is just one of three configurations available as a part of the Cone Beam CT Electron Density & Image Quality Phantom System.

*Customer must specify chamber at time of purchase. Refer to CIRS Cavity Codes for Dosimetry Devices.

Specifications
OVERALL DIMENSIONS: 330 mm x 270 mm x 50 mm (W x H x D)
WEIGHT: 18 kg (40 lb)
MATERIALS: Water and Tissue Equivalent Epoxy Resins
Model 062MA Includes
QTY PART NUMBER DESCRIPTION PHYSICAL DENSITY,
g/cc
ELECTRON DENSITY,
X1023 electrons/cc
RED
(RELATIVE TO H2O)
1 062MA-01 Electron Density Head Insert 1.029 3.333 0.998
1 062MA-02 Electron Density Body without Head Insert 1.029 3.333 0.998
2 062A-04 Lung (Inhale) Equivalent Electron Density Plug 0.20 0.634 0.190
2 062A-05 Lung (Exhale) Equivalent Electron Density Plug 0.50 1.632 0.489
2 062A-06 Breast (50% Gland / 50% Adipose) Equivalent Electron Density Plug 0.99 3.261 0.976
2 062A-08 Solid Trabecular Bone (200 mg/cc HA) Equivalent Electron Density Plug 1.16 3.730 1.117
2 062A-09 Liver Equivalent Electron Density Plug 1.07 3.516 1.052
2 062A-10 Muscle Equivalent Electron Density Plug 1.06 3.483 1.043
2 062A-11 Adipose Equivalent Electron Density Plug 0.96 3.171 0.949
2 062A-15 Solid Dense Bone (800 mg/cc HA) Equivalent Electron Density Plug 1.53 4.862 1.456
1 062A-27 Solid Dense Bone (1250 mg/cc HA) Equivalent Electron Density Plug 1.82 5.663 1.695
1 062MA-39 Water-fillable Electronic Density Plug (Real water data provided) 1.00 3.340 1.000
1 062M-30 Set of 2 Feet for Model 062M
1 062M-40 Soft Carry Case for Model 062M
1 062MA-24 50 mm Thick Bolus Slab 1.029 3.333 0.998
2 062MA-32 100 mm L x Ø 30 mm Background Equivalent Plug 1.029 3.333 0.998
1 062MA-33 12.5 mm Thick Bolus Slab 1.029 3.333 0.998
1 062MA-34 37.5 mm Thick Bolus Slab 1.029 3.333 0.998
1 062MA-36 CBCT Electron Density Phantom - Annulus (100 mm Thick) 1.029 3.32 0.998
1 062MA-37 CBCT Electron Density - Annulus Solid insert (100 mm Thick) 1.029 3.333 0.998
1 062MA-30 Holder/Support set for Model 062MA & 062MQA
1 062MA-40 Soft Carry Case for Model 062MA
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