The antiproton depth-dose curve in water

Authors :: Bassler, Niels
Holzscheiter, Michael
Jäkel, Oliver
Knudsen, Helge
Kovacevic, Sandra
AD-4/ACE Collaboration
Source :: Bassler, N, Holzscheiter, M, Jäkel, O, Knudsen, H, Kovacevic, S & AD-4/ACE Collaboration 2008, ' The Antiproton Depth-Dose Curve in Water ', Physics in Medicine and Biology, vol. 53, no. 3, pp. 793-805 . https://doi.org/10.1088/0031-9155/53/3/017
Publication Year :: 2008
Abstract: We have measured the depth-dose curve of 126 MeV antiprotons in a water phantom using ionization chambers. Since the antiproton beam provided by CERN has a pulsed structure and possibly carries a high-LET component from the antiproton annihilation, it is necessary to correct the acquired charge for ion recombination effects. The results are compared with Monte Carlo calculations and were found to be in good agreement. Based on this agreement we calculate the antiproton depth-dose curve for antiprotons and compare it with that for protons and find a doubling of the physical dose in the peak region for antiprotons.