Analysis of the background of the Jena 14C-AMS facility

The background of the Jena 14C-AMS facility (accelerator mass spectrometry) was analyzed with respect to nuclide, charge state, and energy on the high-energy side. This was performed by ion optical considerations, measurements of the total energy with a PIN diode, measurements of two-dimensional energy loss-residual energy spectra (ΔE, ERes) with an ionization chamber, and energy loss calculations.