TomoDose Features   Capture full beam characteristics not possible using other measurement systems TomoDose presents users with fast and accurate beam data acquisition Labor-intensive water tanks and electrometers are not required Self contained, sets up by a single person in few minutes Proven and in use at several TomoTherapy Hi-Art sites User calibrated every 1-2 years using a patented calibration method TomoDose Hardware Utilizes 223 SunPoint® Diodes that measure only 0.8mm x 0.8mm Small detector size allows for very precise dose measurement in areas of steep dose gradient Detectors are spaced every 5mm along the x-axis, and 4mm or 8mm along the nine y-axes Data is collected electronically and is available to the user immediately after measurement Beam pulse detection, beam time, and detector temperature measurement capability PC Computer software included Applications Daily constancy tests Monthly and annual QA Post component, replacement tests Any application where a water tank may normally be required

RECOMENDED READING:
• "The place of TomoDose in the tomotherapy QA schedule"
  Koen Tournel, Medical Physics Radiotherapy, UZ Brussel
  
  
• "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
  
  

• SU-E-T-60: Efficient and Accurate Treatment Planning System Commissioning for the Enhanced Dynamic Wedge
  Med. Phys. 38, 3499 (2011)
• SU-E-T-457: Influence of Changing Magnetron and Injector Current on the Beam Characteristics of a Tomotherapy Hi-Art SYSTEM
  Med. Phys. 38, 3594 (2011)
  
• TU-EE-A2-05: TomoDose: A Daily Quality Assurance Device for Helical TomoTherapy
  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.