Nuklida · radioaktif
Serium-144 (¹⁴⁴Ce)
Serium-144 (¹⁴⁴Ce) adalah isotop radioaktif serium dengan 58 proton dan 86 neutron (nomor massa 144). Waktu paruhnya 284,886 hari (± 0,025 hari), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Unsur
- Serium (Ce, Z = 58)
- Nomor massa (A)
- 144
- Proton (Z)
- 58
- Neutron (N)
- 86
- Massa atom
- 143.913652763 ± 0.000003041 u
- Waktu paruh
- 284,886 hari (± 0,025 hari)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Praseodimium-144 (¹⁴⁴Pr)
- Tahun penemuan
- 1945
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop serium
- 144Ce (with a half-life of 0.78 year) has been used for brachytherapy applications in cells and vessels of the body. The half-life and specific activity of 144Ce give it a potential advantage over the commonly used isotope 192Ir of higher dose rate at shorter distances and lower irradiation of organs outside the tumor. 144Ce enables the treatment of larger arteries as compared with 32P, another isotope commonly used for this style of radiotherapy.
Isotop serium lainnya
¹¹⁹Ce, ¹²⁰Ce, ¹²¹Ce, ¹²²Ce, ¹²³Ce, ¹²⁴Ce, ¹²⁵Ce, ¹²⁶Ce, ¹²⁷Ce, ¹²⁸Ce, ¹²⁹Ce, ¹³⁰Ce, ¹³¹Ce, ¹³²Ce, ¹³³Ce, ¹³⁴Ce, ¹³⁵Ce, ¹³⁶Ce, ¹³⁷Ce, ¹³⁸Ce, ¹³⁹Ce, ¹⁴⁰Ce, ¹⁴¹Ce, ¹⁴²Ce, ¹⁴³Ce, ¹⁴⁵Ce, ¹⁴⁶Ce, ¹⁴⁷Ce, ¹⁴⁸Ce, ¹⁴⁹Ce, ¹⁵⁰Ce, ¹⁵¹Ce, ¹⁵²Ce, ¹⁵³Ce, ¹⁵⁴Ce, ¹⁵⁵Ce, ¹⁵⁶Ce, ¹⁵⁷Ce, ¹⁵⁸Ce, ¹⁵⁹Ce