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GAFCHROMIC

GAFCHROMIC radiochromic dosimetry films are self-developing film media that have been developed for the measurement of absorbed dose and the mapping of radiation fields associated with external beam radiotherapy and brachytherapy. The films developed a distinctive and characteristic color upon exposure Imageto ionizing radiation and become progressively darker in proportion to absorbed dose. These media can be handled in normal room light, thereby eliminating the cost of darkroom space. Furthermore, since they are self-developing, the costs and inconvenience of post-exposure development are eliminated and there are no hazardous chemicals or waste to dispose of.

Individual GAFCHROMIC radiochromic dosimetry film types are available optimized for high or low energy photons as well as particle radiation. The films are tissue equivalent, light and flexible and may be cut to any shape or size desired. These properties make them ideal for incorporation into anthropomorphic phantoms and the mapping of 2-D and 3-D treatment fields. The construction of GAFCHROMIC radiochromic dosimetry film media even permits them to be immersed in water for short periods of time. GAFCHROMIC radiochromic dosimetry films have responses that are not only dose-rate independent, but they do not exhibit fractionation effects. Their response is also energy-independent down to about 0.2MeV.

The colour change in GAFCHROMIC dosimetry films may be measured with any densitometer; scanner or spectrophotometer, providing the measured response is at red-light wavelength and in the range of the peak absorbance of the blue dye, ie. close to 670nm.


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Features:

  • Self-developing - no processing, no chemicals
  • Not light sensitive - no darkroom required
  • Unaffected by aqueous fluids - can be immersed in water phantoms
  • Energy independent in therapy range
  • Tissue equivalent (except XR Type T)
  • No dose rate or dose fractionation effects
  • Films can be cut to any size and shape
  • Wide dynamic range
  • Almost linear dose-density response
  • Tough, robust, abrasion resistant



GAFCHROMIC XR

GAFCHROMIC XR Type R dosimetry film is a revolutionary 14"x17" wide-area dosimeter for measuring and mapping patient exposure during interventional procedures guided by fluoroscopy.


ImageFeatures:
  • Self developing - no chemicals, no processor, no darkroom
  • Dynamic range 0.1Gy to 15Gy
  • Shows how the radiation dose was distributed
  • No dose rate or dose fractionation effects
  • Energy independent in diagnostic range
  • Not light sensitive
  • Unaffected by water, blood and other aqueous fluids





GAFCHROMIC RTQA

GAFCHROMIC RTQA is targeted for QA applications such as verification of field alignment of external beam sources and verification of HDR brachytherapy source positioning.


ImageFeatures:

  • Dynamic range from 0.02 Gy to 8 Gy
  • Develops in real time. No post-exposure treatment
  • Not sensitive to light
  • Convenient to handle and easy to cut
  • Water resistant
  • Competitively priced with conventional films




GAFCHROMIC EBT

GAFCHROMIC EBT is a unique dosimetry film targeted for application in external beam radiotherapy, particularly intensity modulated radiation therapy (IMRT) and in brachytherapy.


Features:

  • Sensitive to doses ranging from about icGy to 800cGy
  • Self developing in real-time
  • Uniform and consistent
  • Energy-independent dose response from KeV to MeV
  • Near tissue-equivalent
  • Insensitive to light
  • Water resistant - usable in water phantoms
  • Digitized with Vidar, Epson, and Microtek scanners





Viewable PDF files:

RTQA

Why use Gafchromic RTQA

EBT & RTQA

EBT Product Brief

Why use Gafchromic EBT

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