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CBCT Electron Density Phantom

CBCT Electron Density Phantom
Item Number :
682-200

CBCT Electron Density Phantom.

Details

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CBCT Electron Density Phantom.
Increase HU Value Confidence for Adaptive RT

The Cone Beam (CBCT) Electron Density Phantom is an extended version of Item 682-062 Electron Density Phantom 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.

• Evaluate CT scan data

• Correct for inhomogeneities

• Document relationship between CT number and tissue electron density

• Simulate indicated tissue within the diagnostic and therapeutic energy range

• Quick assessment of distance registration (optional)

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 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®-LR and contains the same set of tissue equivalent electron density inserts as the standard Item 682-062.  Additional interchangeable slabs allow for repositioning of the electron density section off axis.

Specifications
Overall Dimensions: 13"W x 10.6"H x 9.8" D (33 x 27 x 5 cm)
Weight:  40 lb (18 kg)
Materials:  Water and Tissue Equivalent Epoxy Resin

Electron Density Phantom Includes
Electron Density Head Insert

Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

Electron Density Body without Head Insert
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

Lung (Inhale) Equivalent Electron Density Plug
Physical Density (g/cc):  0.20
Electron Density x 1023 electrons/cc:  0.634
RED (Relative to H2O):  0.190
Quantity:  2

Lung (Exhale) Equivalent  Electron Density Plug
Physical Density (g/cc):  0.50
Electron Density x 1023 electrons/cc:  1.632
RED (Relative to H2O):  0.489
Quantity:  2

Breast (50% Gland / 50% Adipose) Equivalent Electron Density Plug
Physical Density (g/cc):  0.99
Electron Density x 1023 electrons/cc:  3.261
RED (Relative to H2O):  0.976
Quantity:  2

Solid Trabecular Bone (200 mg/cc HA) Equivalent Electron Density Plug
Physical Density (g/cc):  1.16
Electron Density x 1023 electrons/cc:  3.730
RED (Relative to H2O):  1.117
Quantity:  2

Liver Equivalent Electron Density Plug
Physical Density (g/cc):  1.07
Electron Density x 1023 electrons/cc:  3.516
RED (Relative to H2O):  1.052
Quantity:  2

Muscle Equivalent Insert Electron Density Plug
Physical Density (g/cc):  1.06
Electron Density x 1023 electrons/cc:  3.483
RED (Relative to H2O):  1.043
Quantity:  2

Adipose Equivalent Insert Electron Density Plug
Physical Density (g/cc):  0.96
Electron Density x 1023 electrons/cc:  3.171
RED (Relative to H2O):  0.949
Quantity:  2

Solid Dense Bone (800 mg/cc HA) Equivalent Electron Density Plug
Physical Density (g/cc):  1.53
Electron Density x 1023 electrons/cc:  4.862
RED (Relative to H2O):  1.456
Quantity:  2

Solid Dense Bone (1250 mg/cc HA) Equivalent Electron Density Plug
Physical Density (g/cc):  1.82
Electron Density x 1023 electrons/cc:  5.663
RED (Relative to H2O):  1.695
Quantity:  1

Water-fillable Electronic Density Plug (Real water data provided)

Physical Density (g/cc):  1.00
Electron Density x 1023 electrons/cc:  3.340
RED (Relative to H2O):  1.000
Quantity:  1

Set of 2 Feet for 682-062

Soft Carry Case for 680-062

50 mm Thick Bolus Slab
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

100 mm L x 30 mm Diameter Background Equivalent Plug
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  2

12.5 mm Thick Bolus Slab
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

37.5 mm Thick Bolus Slab
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

CBCT Electron Density Phantom - Annulus (100 mm Thick)
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

CBCT Electron Density Phantom - Annulus Solid Insert (100 mm Thick)
Physical Density (g/cc):  1.029
Electron Density x 1023 electrons/cc:  3.333
RED (Relative to H2O):  0.998
Quantity:  1

Holder / Support set

Soft Carry Case

User Guide

48 Month Warranty


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