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Double differential ionization cross sections of tetrahydrofuran for proton impact

Kolloquium der Abteilung 6

Within the framework of the EMRP Project “BioQuaRT”, double differential (in angle and energy) ionization cross sections were experimentally determined for the collisions of protons with a tetrahydrofuran gas target at impact energies between 100 keV and 1910 keV in the angular range between 15° and 165° relative to the beam direction. The measurements were carried out at the lately developed 150 kV electrostatic and the 3.75 MV Van de Graaf accelerators at PTB. The emitted electrons were measured with a recently upgraded ESA-22-type electrostatic electron spectrometer developed at Atomki (Debrecen, Hungary). The derived absolute double differential cross sections are being included in the PTB track structure code PTra and in the BioQuaRT multi-scale track structure simulation program which is based on GEANT4.