Energy Levels of ¹⁸F from ¹⁶O(d, d)¹⁶O

Abstract

The differential cross sections for elastic scattering of deuterons from l 6 0 have been measured in the Ed = 1.0. -. 2.5 MeV region at eight scattering angles. Resonances were observed at Ed = 1.00, 1.80 and 2.45 MeV, corresponding to the excited states in I8F at 8. 40, 9.11 and 9.69 MeV. Analysis of the data in terms of the single-level approximation leads to the assignments I" = 1+, 3+ and 2+, respectively. Reduced partial widths for elastic scattering were determined.

Cross-section studies of deuteron reactions and application in light element ion beam analysis techniques

“…Συγκεκριμένα χρησιμοποιήθηκε η τεχνική p-EBS. Η ενέργεια E' προσδιορίστηκε μέσω της διαδικασίας της ενεργειακής βαθμονόμησης του επιταχυντή με χρήση του λεπτού συντονισμού της αντίδρασης 27 Al(p,γ) 28 Si ή της αντίδρασης 13 C(p,γ) 14 N, ανάλογα την περίπτωση. Για τον υπολογισμό της ενέργειας E, στην μέση του πάχους του στόχου, χρησιμοποιήθηκε η περιγραφή του στόχου μέσω της τεχνικής p-EBS και ο υπολογισμός της απώλειας ενέργειας στα επιφανειακά στρώματα του στόχου μέχρι να φτάσει η δέσμη στη μέση του πάχους του στόχου.…”

“…Thus, it is deemed necessary to monitor the compositional changes that occur during the corrosion process via the determination of sodium depth profiling. Silicon (92.23% 28 Si, 4.67% 29 Si, 3.10% 30 Si) is the second most abundant element in the Earth's crust, due to the various forms of silicon dioxide and silicates present in dust and sands. Silicon and its compounds form the basis of many modern technologies and have found their applications in industry.…”

“…However, the major drawback of the p-EBS technique is that the simultaneous implementation of p-EBS and p-NRA (when complex matrices are involved) is impeded since the reactions (p,α), (p,d) and (p, 3 He) are in several cases strongly endothermic (e.g. for 14 N, 16 O, 28 Si). Even in the cases where the reactions are exothermic (e.g.…”

“…The most suitable (p,γ) reactions implemented in the present work are the 27 Al(p,γ) 28 Si, the 13 C(p,γ) 14 N and the 32 S(p,pγ) 32 S ones, corresponding to the proton energies: (991. 9 ± 0.04) keV [61], (1747.6 ± 0.9 keV) [61] and 3379 keV [75] having widths Γ = (100 ± 20) eV, Γ = 122 eV and Γ= 700 eV, respectively.…”

“…It should be mentioned here that at the Tandem laboratory, in the past, the main three reactions mentioned above have been sequentially implemented and the magnet displayed a linear behavior in this energy range. In the context of the present thesis the resonance of the 27 Al(p,γ) 28 Si reaction or the 13 C(p,γ) 14 N reaction, depending on the case, were used for the accelerator calibration in the beginning of all the experiments. The procedure will be described in detail for the 27 Al(p,γ) 28 Si reaction performed prior to the nat Si(d,d0) nat Si experiment.…”