0616490 - ÚJF 2026 RIV GB eng J - Journal Article
Dhanda, N. - Kumar, A. - Sharma, C. - Sarma, L. - Prabhakar, D. K. - Khan, Mayur - Dawar, A.
Fabrication of thin carbon-backed target of ¹⁸⁵Re by evaporation technique and self supporting target of ¹⁷⁰Er by cold rolling technique for the study of nuclear reaction dynamics.
Vacuum. Roč. 234, April (2025), č. článku 114007. ISSN 0042-207X. E-ISSN 1879-2715
Institutional support: RVO:61389005
Keywords : alpha Source measurement * Energy dispersive X-ray diffraction (EDX) * X-ray Diffraction (XRD) * Rutherford Back-Scattering Spectroscopy (RBS)
OECD category: Coating and films
Impact factor: 3.8, year: 2023 ; AIS: 0.489, rok: 2023
Method of publishing: Limited access
Result website:
https://www.sciencedirect.com/science/article/pii/S0042207X24010534DOI: https://doi.org/10.1016/j.vacuum.2024.114007

Thin, durable and uniform self-supporting isotopic targets of 170 Er and 185 Re targets with carbon backing have been fabricated by using cold-rolling and high vacuum evaporative deposition techniques respectively at Inter University Accelerator Centre (IUAC) target laboratory, New Delhi. For the fabrication of 185 Re, e-Gun (electron-Gun) evaporation technique was used. The thickness obtained for 170 Er was around 2.1 mg/cm2 and for 185 Re, it was 200 mu g/cm 2 with a carbon backing of 50 mu g/cm 2 . Using characterization techniques such as energy dispersive X-ray spectroscopy (EDX), Rutherford backscattering spectroscopy (RBS), alpha energy loss technique, and X-ray diffraction, the thickness and elemental composition of the targets were analyzed. These measurements essentially exhibited no contamination, indicating their excellent purity and durability. Both the targets were used in nuclear experiment performed at NAND (National Array of Neutron Detectors) facility, IUAC, New Delhi to study the nuclear reaction dynamics. For such kind of study, one needs pure targets without any contamination to ensure that the neutron data is coming only from the reaction of interest. For mass distribution measurements, thin target (100-200 mu g/cm 2 ) is the requirement.
Permanent Link: https://hdl.handle.net/11104/0363484