Fabrication of ¹¹²Sn target on ²⁰⁸Pb-backing

The motivation is to study ¹⁴²Tb nucleus by measuring the lifetimes of the excited states via ³⁵Cl induced fusion-evaporation reaction. To carry out this experiment, an enriched ¹¹²Sn target of 2.44 mg/cm² thickness on 8.8 mg/cm² thick ²⁰⁸Pb backing is required. Cold rolling of the¹¹²Sn ingot has been found to be the most suitable for this purpose as Sn is malleable in nature. is malleable in nature. The very low isotopic abundance (0.97%) of ¹¹²Sn makes it very costly. Therefore, the rolling process is again preferable as in this technique least amount of material is required to produce a foil of finite dimensions, but, the stickiness of metallic tin below 5 mg/cm² is challenging. In this paper, the fabrication procedure of a Pb-backed thin ¹¹²Sn target has been discussed in details