A Fast and Simple Method for Improving Accuracy of Helmet Output Factor Measurements for Gamma Knife Perfexion Unit
Byline
L Ma1 *, H Nordstrom2 , P Kjall2 , J Novotny3 , L Verhey1 , (1) UCSF Comprehensive Cancer Center, San Francisco, CA, (2) Elekta AB, Stockholm, SE, (3) University of Pittsburgh Medical Center, Pittsburgh, PA