ADOPTED LEVELS for 227Rn
Author: Ictp-2014 Workshop Group | Citation: Nucl. Data Sheets 132, 257 (2016) | Cutoff date: 15-Jan-2016
Author: B. Singh | Citation: ENSDF | Cutoff date: 15-JAN-2016
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=3200 keV 19 | S(n)= 3933 keV 18 | S(p)= 9020 keV SY | Q(α)= 3380 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | (5/2) | 20.2 s 4 % β- = 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (5/2) | 20.2 s 4 % β- = 100 | %α is negligible for Q(α)=3020 keV (1997Mo25). E(level): %α is negligible for Q(α)=3020 keV (1997Mo25). |
227Rn evaluated by B. Singh.
1986Bo35 (also 1989Bo11): the activity was produced by spallation of 600-MeV protons on targets of 232Th. Assignment to 227Rn was based on mass separation using ISOLDE mass separator, and on the genetic relationship with its daughter nucleus 227Fr. Measured β- and half-life using plastic scintillator detector
1997Ku20 (also 1989Bo11, 1986Bo35): the activity was produced by spallation of 1-GeV protons on targets of 232Th, and subsequently mass separated in the ISOLDE mass separator; measured half-life, Eγ, Iγ, γγ
Precise mass measurements: 2012Ch19, 2009Ne03
Q-value: Estimated uncertainties (2012Wa38): 300 for S(p), 200 for Q(α)
Q-value: S(2n)=9791 18, S(2p)=16220 300 (syst) (2012Wa38)