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For High Energy Calibration in Radiation Therapy
- Equal
to water in radioabsorptive and scatter properties
- Gives
easily reproducible results
- Inexpensive
and structurally consistent
- Custom
slab sizes and anthropomorphic shapes available
RSD DRY WATER™ was developed by Samuel W. Alderson
to meet ICRU 44 guidelines and to provide an easy, convenient way to
accomplish radiation beam calibrations. Critical dose measurements per AAPM
TG 21 are possible using RSD DRY WATER™.
Various standard size slabs are carefully molded and machined to
accurate sizes and thicknesses. Custom slab sizes and anthropomorphic
shapes can be manufactured. Inserts for ion chambers, TLDs and
other detectors can also be provided.
X-ray transmission through DRY WATER™ is within 1% of an equal amount
of natural water. Ionization readings obtained in DRY WATER™ are equal
(within experimental error) to those in natural water for the same depth and
exposure.
DRY WATER™ for diagnostic energies 30 keV to 300 keV is available in a
separate formulation. Linear attenuation coefficients for diagnostic DRY
WATER™ are within 1.0% of water in this energy range.
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