Introduction 
(1) - History  
For the 3D treatment planning we use 
  the Cadplan Planning System from Varian/Dosetek. On the following pages I want 
  to present our intermediate results after using this system in clinical routine 
  for about a year and a half.
Some historical facts:
 
  
    - We started to experiment 
      with the system in the summer of 1996, during the installation phase of 
      the Clinacs (two 2300 C/D). 
 
    - Summer/Fall 1996: Measurement 
      of treatment unit data on both Clinacs (PTW waterphantom). Comparison of 
      the data, decision to use only one data set for both machines, since deviations 
      were very low (beam matching had been done in the factory). 
 
    - Fall 1996: Configuration 
      of the treatment units (one for 6 MV, one for 15 MV photons). Testing and 
      Commissioning. EDW properties were checked with a PTW LA48 Linear Array 
      (47 chambers, 8 mm spacing). Good agreement between measurements and test 
      plans.
 
    - Dec 20, 1996: Planning 
      and treatment of the first patient.
 
    - April 1998: Cadplan 
      3.0.6
 
    - August 1998: Cadplan 
      3.1.1
 
  
 
   
     
  
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