Nuklida · radioaktif
Rodium-105 (¹⁰⁵Rh)
Rodium-105 (¹⁰⁵Rh) adalah isotop radioaktif rodium dengan 45 proton dan 60 neutron (nomor massa 105). Waktu paruhnya 35,341 jam (± 0,019 jam), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Unsur
- Rodium (Rh, Z = 45)
- Nomor massa (A)
- 105
- Proton (Z)
- 45
- Neutron (N)
- 60
- Massa atom
- 104.905687787 ± 0.000002685 u
- Waktu paruh
- 35,341 jam (± 0,019 jam)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Paladium-105 (¹⁰⁵Pd)
- Tahun penemuan
- 1945
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop rodium
- The beta particles of 105Rh (with a half-life of about 35 h) are used in target radiotherapy to kill cancer cells or cause cancer cell sterilization. The gamma rays from 105Rh enable in vivo tracking during radiotherapy. 105Rh has been used in the treatment of bone pain (Fig. IUPAC.45.1),. Ocular brachytherapy currently is performed using 125I (with a half-life of about 59 days) or 106Rh (with a half-life of about 30 s) seeds. Brachytherapy can allow a good spatial dose distribution over the ocular tumor with lower radiation on adjacent tissues. In the case of irradiation of the eyeball with 106Rh, 80 percent of the dose has been absorbed within a depth of 5.2 mm and 90 percent has been absorbed within 7.2 mm (Fig. IUPAC.45.2). This limits the application of 106Rh; however, when 106Rh can be used, the radiation dose can be lower, which is preferred.
Isotop rodium lainnya
⁸⁸Rh, ⁸⁹Rh, ⁹⁰Rh, ⁹¹Rh, ⁹²Rh, ⁹³Rh, ⁹⁴Rh, ⁹⁵Rh, ⁹⁶Rh, ⁹⁷Rh, ⁹⁸Rh, ⁹⁹Rh, ¹⁰⁰Rh, ¹⁰¹Rh, ¹⁰²Rh, ¹⁰³Rh, ¹⁰⁴Rh, ¹⁰⁶Rh, ¹⁰⁷Rh, ¹⁰⁸Rh, ¹⁰⁹Rh, ¹¹⁰Rh, ¹¹¹Rh, ¹¹²Rh, ¹¹³Rh, ¹¹⁴Rh, ¹¹⁵Rh, ¹¹⁶Rh, ¹¹⁷Rh, ¹¹⁸Rh, ¹¹⁹Rh, ¹²⁰Rh, ¹²¹Rh, ¹²²Rh, ¹²³Rh, ¹²⁴Rh, ¹²⁵Rh, ¹²⁶Rh, ¹²⁷Rh, ¹²⁸Rh