Pulse-height defects for heavy ions in a silicon surface-barrier detector

Energy Loss by keV Ions in Silicon

“…Over the entire velocity range, the different H and He isotopes have the same value of f E at the same incident velocity, indicating the absence of an isotope effect. Figure 2 shows data from this study as well as higher energy results from earlier studies: Ne [19], Si [20], Ar [19], Br [21], Ni [22], Ag [22], Au [22], and U [22]. Over a broad range of ion species and energies (1 keV H to 26 MeV U ) the experimental values of f E fall close to the line representing Eq.…”

“…Similar to Fig. 1, this figure includes data (colored symbols) from earlier studies [19][20][21][22] for heavy ions at high energies derived using silicon solid state detectors operated in a single particle counting mode. The open circles represent the data of Fig.…”

Superheavy research in Japan

“…By subtracting the calculated energy losses in the foil of the second timing counter, the energy is reduced to 49.8 MeV. By considering the so-called plasma effect and nuclear stopping in silicon [26] for ions with a large atomic number, the measured value is found to be consistent with the assumption that 277 112 ions were implanted in the detector. We compare the present experimental results with the results of the GSI experiments [27,28,3].…”

The stopping forces of small cluster ions of Li and C with MeV energies in carbon foils

“…As the cluster-ion beam is bombarded with the carbon foil, the cluster ions are then dissociated into the fragments and the accumulated energies of the cluster fragments are measured as a signal. In addition, the current intensity of cluster-ion beam is greatly reduced to be as low as possible and the particle counting rates during the measurements are kept below 100 cps to avoid radiation damage to the detector and excessive pulse pileup [13]. Thicknesses of the carbon foils used in the present work are 3, 5 and 15 lg/cm 2 , respectively.…”