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Solid Water Material, 0.5cm Thick x 20cm Square

Solid Water Material, 0.5cm Thick x 20cm Square
Solid Water Material, 0.5cm Thick x 20cm Square

Item Number :
604-205

Solid Water Material, 0.5 cm Thick x 20 cm Square.

Details

Solid Water Material, 0.5 cm Thick x 20 cm Square.

The Certified Therapy Grade Solid Water® is manufactured to the most exact quality assurance standards in the industry and is ideally suited to TG-51 protocol recommendations.  Each slab undergoes meticulous analysis to ensure the highest possible quality.  A Certificate of Conformance is provided with each slab and includes calculated elemental composition, calculated mass, volume electron densities, electron and photon transmission characteristics and measured physical dimensions.  A radiograph is also provided demonstrating the product is free from voids, contamination or other artifacts.

CTG Solid Water® is designed for electron and photon beam measurements including relative ionization, depth dose and uniformity.

Specifications
Electron and Photon Stopping Power
Linear attenuation coefficient relative to water shall be 1.030 ±0.01 for photon energies from100 kV to 24 MV.

Homogeneity
Material shall be free from air bubbles or other artifacts greater than 1 mm in diameter within 5 cm of the center of the slab.  No more than two (2) air bubbles or other artifacts greater than 2 mm in diameter outside the 5 cm radius, but within 10 cm of center.  Scanning for homogeneity shall be done by x-ray at 50 kVp, no filtration, with a dose sufficient to produce an x-ray image of 0.8 to 1.2 O.D.

Dimensions
Tolerance for the length and width, or diameter of the CTG Solid Water® material shall be the nominal ±0.5 mm

Thickness Tolerance:  ±0.006" (0.15 mm)
Flatness:  ±0.006" (0.15 mm)
Squareness:  Where applicable, shall be within 90° ±0.3°
Size:  20x20 cm
Thickness:  0.5 cm

Reference Material
Attix, M.S., Constantinou, Chris, & Paliwal, Bhudatt R. (1982).  A solid water phantom material for radiotherapy x-ray and y-ray beam calibrations.  Med. Phys. 9 (3), 436-441.

Darlison, R., Martin R.J,. & White D.R. (1977). Epoxy resin based tissue substitutes. British Journal of Radiology, 50, 814-821.

Hanson, W.F,. Tailor, R.C., & Tello, V.M. (1995). How water equivalent are water-equivalent solid materials for output calibration of photon and electron beams? Med. Phys. 22, (7), 1177-1189.


Data Sheet