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TomoDose Main Screen
At the top of the TomoDose main screen:
- The X axis with 108 detectors and 50cm array length
- Single or multiple profiles are viewable at any time
- Overlay of any two profiles can be selected for comparison
- Individual channels may be selected for point dose analysis
- X axis mirror symmetry
TomoDose Comparison Screen
- Y axis mirror symmetry
- Each Y axis profile (-19cm, 15cm, -10cm, -5cm, 0cm, +5cm, +10cm, +15cm, +19cm)
- Percent difference comparison of Y axis profiles
- A list of all open profiles
- Analysis data for any one selected profile, including: Field Size, Flatness, Beam Center, Area Symmetry, X & Y Point Symmetry, CAX Dose, Beam Shift, Pulse Count, Beam Time, Integration Time
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RECOMENDED READING:
- "Characterization and use of EBT radiochromic film for IMRT dose verification"
Omar A. Zeidan, Stacy Ann L. Stephenson, Stacy L. Meeks, Thomas H. Wagner, Twyla R. Willoughby,
Patrick A. Kupelian, and Katja M. Langen
Med. Phys. 33(11), November 2006
- "Evaluation of a diode array for QA measurements on a helical tomotherapy unit"
K. M. Langen,a S. L. Meeks, D. O. Poole, T. H. Wagner, T. R. Willoughby, O. A. Zeidan, and P. A. Kupelian, Med. Phys. 32(11), November 2005
- "A 4D IMRT QA Device "
WE-D-224A-03
B Nelms and W Tome
Med. Phys. 33, 2247 (2006)
- "TomoDose: A Daily Quality Assurance Device for Helical TomoTherapy "
TU-EE-A2-05
C Chen, J Meadows, and T Bichay
Med. Phys. 33, 2207 (2006)
How is the TomoDose calibrated? What type of cable is used with the TomoDose?
Q: How is the TomoDose calibrated?
A: Array calibration is performed with a built-in software application that guides the user through Sun Nuclear’s wide field calibration (US Patent # 6125335.) Six separate exposures calibrate the entire detector array using detector substitution. Calibration takes about 15 minutes per energy, and TomoDose can be calibrated on a standard 6MV linac beam or on Tomotherapy’s Hi-Art system.
Q: What type of cable is used with the TomoDose?
A: The TomoDose uses the same cable and power supply as other Sun Nuclear instruments.
"The TomoDose array can be used to accurately measure the beam profiles in a helical tomotherapy unit. The ease of use and the immediate availability of the results make this device ideal for routine QA measurements." Katja Langen, Ph.D.,
MD Anderson Cancer Center Orlando
