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Table 2 Characteristics of the developed small animal irradiators [3]

From: Preclinical dosimetry: exploring the use of small animal phantoms

Model Source Imaging Positioning Additional
SARRP (Xstrahl Ltd) X-ray, 5–225 keV Amorphous Si flat panel detector for dual imaging system (CT) and planar X-ray Robotically-controlled stage, 35 cm SSD, 4 degrees of freedom.
Allows continuous radiation delivery either from rotating gantry or platform.
2 collimation systems: 1 for precision with smaller, conformal inserts, another for higher throughput with larger square field sizes.
X-Rad 225Cx (Precision X-Ray Inc) X-ray, 5–225 keV Amorphous Si flat panel for single image or cone beam CT. 3D computer controlled stage with automated corrections Selection of beam collimators providing 0.2 mm accuracy
Washington University Iridium 192 (brachytherapy) N/A (fiducial markers) Computer controlled stage, 4 gantry angles Tungsten collimators 5-15 mm
Stanford University X-ray, 70–120 keV (microCT scanner) Designed for small animal imaging so 0.1 mm spatial resolution Arc or fixed field Brass iris collimators (0.1-6 cm field sizes
University of Texas Southwestern X-ray 5–320 keV Fixed panel 3D precision stage, cylinder for immobilisation Cylindrical collimators 1-10 mm
  1. Key: SARRP small animal radiation research platform, keV kiloelectron volts, CT computed tomography, SSD source to surface distance