The Rossendorf 3 MV tandetron: a new generation of high-energy implanters

Friedrich, M.; Burger, W. J.; Henke, D.; Turuc, S.

doi:10.1016/s0168-9002(96)00393-2

Cited by 26 publications

(18 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the expected 44 Ti, the activation samples showed parasitic 22 Na that had been produced by the 19 F(α, n) 22 Na reaction during the irradiation. It is not clear whether the fluorine was contained in the target material or in the backing.…”

Section: H Activity Determination In Felsenkellermentioning

confidence: 81%

See 1 more Smart Citation

Resonance triplet atEα=4.5 MeV in the40Ca(α,γ<

et al. 2013

View full text Add to dashboard Cite

The 40 Ca(α, γ ) 44 Ti reaction is believed to be the main production channel for the radioactive nuclide 44 Ti in core-collapse supernovae. Radiation from decaying 44 Ti has been observed so far for two supernova remnants, and precise knowledge of the 44 Ti production rate may help improve supernova models. The 40 Ca(α, γ ) 44 Ti astrophysical reaction rate is determined by a number of narrow resonances. Here, the resonance triplet at E α = 4497, 4510, and 4523 keV is studied both by activation, using an underground laboratory for the γ counting, and by in-beam γ spectrometry. The target properties are determined by elastic recoil detection analysis and by nuclear reactions. The strengths of the three resonances are determined to be ωγ = (0.92 ± 0.20), (6.2 ± 0.5), and (1.32 ± 0.24) eV, respectively, a factor of 2 more precise than before. The strengths of this resonance triplet may be used in future works as a point of reference. In addition, the present new data directly affect the astrophysical reaction rate at relatively high temperatures (above 3.5 GK).

show abstract

Section: H Activity Determination In Felsenkellermentioning

confidence: 81%

“…The irradiations have been carried out at the 3-MV Tandetron of Helmholtz-Zentrum Dresden-Rossendorf (HZDR) [22]. The accelerator provided a beam of E α = 4.5 MeV 4 He ++ ions with an intensity of 2.0-2.6 μA (1.0-1.3 particle μA) on target.…”

Section: Methodsmentioning

confidence: 99%

Resonance triplet atEα=4.5 MeV in the40Ca(α,γ<

et al. 2013

View full text Add to dashboard Cite

show abstract

“…A drop of the colloidal dispersion was dried on a Si(1 0 0) substrate which had previously been cleaned in a KOH-ethanol solution. Next, the particles were irradiated with Au ions using the 3 MV tandetron accelerator at the ion beam facility in Rossendorf [13]. The ion beam was electrostatically scanned across a 5:1 Â 5:1 cm 2 area.…”

Section: Methodsmentioning

confidence: 99%

Anisotropic deformation of colloidal particles under MeV ion irradiation

Dillen

Snoeks

Fukarek

et al. 2001

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

Spherical silica colloids with a diameter of 1:0 lm, made by wet chemical synthesis, were irradiated with 2±16 MeV Au ions at¯uences ranging from 2 Â 10 14 to 11 Â 10 14 cm À2 . The irradiation induces an anisotropic plastic deformation turning the spherical colloids into ellipsoidal oblates. After 16 MeV Au irradiation to a¯uence of 11 Â 10 14 cm À2 a sizeaspect ratio of 4.7 is achieved. The size polydispersity ($3%) remains unaected by the irradiation. The transverse diameter increases with the electronic energy loss above a threshold value of $0.6 keV/nm. Non-ellipsoidal colloids are observed in the case that the projected ion range is smaller than the colloid diameter. The deformation eect is also observed for micro-crystalline ZnS and amorphous TiO 2 colloids, as well as ZnS=SiO 2 core/shell particles. No deformation is observed for crystalline Al 2 O 3 and Ag particles. The data provide strong support for the thermal spike model of anisotropic deformation. Ó

show abstract

“…However, its ωγ has so far been measured only once with precision better than 10% [46]. The H + beam for the experiment was provided by the 3 MV Tandetron accelerator [47] at Forschungszentrum Dresden-Rossendorf (FZD). The beam reached the target chamber ( fig.…”

Section: Thementioning

confidence: 99%