Mass database
| isotope | frequency ratio | ref. ion | ME Isoltrap (in keV) |
ME AME 2003 (in keV) |
comment | paper |
|---|---|---|---|---|---|---|
| Fr-203 | 1.52741073(13) | Cs-133 | 861(16) | 861(16) | C. Weber et al., Nucl. Phys. A 803 (2008), 1-29 | |
| Fr-205 | 1.542441561(73) | Cs-133 | -1308.6(9.0) | -1310(8) | C. Weber et al., Nucl. Phys. A 803 (2008), 1-29 | |
| Fr-209 | 1.572518113(268) | Cs-133 | -3817(34) | -3769(15) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-210 | 1.580045961(184) | Cs-133 | -3363(24) | -3346(22) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-211 | 1.587563810(107) | Cs-133 | -4140.1(11.7) | no value(no value) | M. Kowalska et al., Eur. Phys. J. A 42 (2009), 351-359 | |
| Fr-211 | 1.587563559(187) | Cs-133 | -4177(24) | -4158(21) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-212 | 1.595092782(208) | Cs-133 | -3553(26) | -3538(26) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-212 | 1.595092993(76) | Cs-133 | -3516.0(8.8) | no value(no value) | M. Kowalska et al., Eur. Phys. J. A 42 (2009), 351-359 | |
| Fr-213 | 1.602616827(56) | Cs-133 | -3553.0(5.1) | no value(no value) | M. Kowalska et al., Eur. Phys. J. A 42 (2009), 351-359 | |
| Fr-221 | 1.662946237(255) | Cs-133 | 13267(32) | 13278(5) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-222 | 1.670495103(190) | Cs-133 | 16323(24) | 16349(21) | ratio calculated from published values | G. Bollen et al., J. Mod. Optics 39 (1992), 257-262 |
| Fr-229 | 1.72332168(30) | Cs-133 | 35816(37) | 35820(40) | C. Weber et al., Nucl. Phys. A 803 (2008), 1-29 | |
| Fr-230 | 1.73087561(24) | Cs-133 | 39500(29) | 39600#(450#) | F. Herfurth et al., Eur. Phys. J. A 25 (2005), 17-21 |