Nuklida · radioaktif
Erbium-171 (¹⁷¹Er)
Erbium-171 (¹⁷¹Er) adalah isotop radioaktif erbium dengan 68 proton dan 103 neutron (nomor massa 171). Waktu paruhnya 7,516 jam (± 0,002 jam), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Unsur
- Erbium (Er, Z = 68)
- Nomor massa (A)
- 171
- Proton (Z)
- 68
- Neutron (N)
- 103
- Massa atom
- 170.938037372 ± 0.000001511 u
- Waktu paruh
- 7,516 jam (± 0,002 jam)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Tulium-171 (¹⁷¹Tm)
- Tahun penemuan
- 1938
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop erbium
- Radiolabeled 171Er (with a half-life of 7.5 h) tablets have been used to study bowel movements of individuals using external scintigraphy. Such tablets have an enteric coating and contain small amounts of stable erbium oxide (170Er) initially. The tablets are then irradiated at a low neutron flux to produce radioactively labeled 171Er tablets, via the 170Er (n, γ) 171Er reaction. This method is a noninvasive approach for determining gastric emptying rates and visualizing segments of the digestive system in an individual,.
Isotop erbium lainnya
¹⁴²Er, ¹⁴³Er, ¹⁴⁴Er, ¹⁴⁵Er, ¹⁴⁶Er, ¹⁴⁷Er, ¹⁴⁸Er, ¹⁴⁹Er, ¹⁵⁰Er, ¹⁵¹Er, ¹⁵²Er, ¹⁵³Er, ¹⁵⁴Er, ¹⁵⁵Er, ¹⁵⁶Er, ¹⁵⁷Er, ¹⁵⁸Er, ¹⁵⁹Er, ¹⁶⁰Er, ¹⁶¹Er, ¹⁶²Er, ¹⁶³Er, ¹⁶⁴Er, ¹⁶⁵Er, ¹⁶⁶Er, ¹⁶⁷Er, ¹⁶⁸Er, ¹⁶⁹Er, ¹⁷⁰Er, ¹⁷²Er, ¹⁷³Er, ¹⁷⁴Er, ¹⁷⁵Er, ¹⁷⁶Er, ¹⁷⁷Er, ¹⁷⁸Er, ¹⁷⁹Er, ¹⁸⁰Er