Self-supporting elemental sulfur target for charged particle irradiation

Isoscalar giant resonance strengths in32S and possible excitation of superdeformed and28Si+Itoh1, Kishi2, Sakaguchi3 et al. 2013Phys. Rev. CSelf Cite

“…[1]. In recent works on 24 Mg, 28 Si, 40 Ca, and 48 Ca [10,12,[33][34][35], a large part of the E0 strength was found over E x ∼ 20 MeV. The E0 strength in 32 S was also found to be fragmented in the wide excitation energy region from 6 MeV to 43 MeV as shown in Fig.…”

“…Such data are available from Ref. [24]. From a comparison of the 0 • spectra between the (α, α ′ ) and (p,p ′ ) reactions, we identified six 0 + states in the E0 strength distribution of (α,α ′ ) as listed in Tables II and III.…”

“…We used two self-supporting natural sulfur foils with thicknesses of 14.3 mg/cm 2 for 0 • and of 15.6 mg/cm 2 for finite angles. The sulfur target was prepared in the following procedure [24]. At first, the natural sulfur powder (the abundance of 32 S is 95.02%) was melted at the temperature of 112.8 • C. The liquid sulfur was solidified between a couple of the Teflon sheets with a well defined thickness.…”

Quenching of Isovector and Isoscalar Spin-M1 Excitation Strengths in N = Z Nuclei

“…Magnesium and argon targets were isotopically enriched to 100%, while the others were in natural abundance. The 32 S target was kept at the liquid nitrogen temperature for preventing sublimation due to heat by charged particle irradiation (Matsubara et al, 2009) with an areal density of 15 mg/cm 2 . The 36 Ar target was kept at 1.0 atm in a gas cell at room temperature (Matsubara et al, 2012) sealed by aramid foils with a thickness of 6 μm on one side.…”