ADOPTED LEVELS, GAMMAS for 224Rn

Authors: Balraj Singh, Sukhjeet Singh |  Citation: ENSDF |  Cutoff date: 08-Mar-2022 

Authors: Sukhjeet Singh, Balraj Singh |  Citation: Nucl. Data Sheets 130, 127 (2015) |  Cutoff date: 15-Oct-2015 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=696 keV 15S(n)= 6016 keV 13S(p)= 8272 keV 17Q(α)= 4757 keV 20
Reference: 2021WA16

References:
  A  120Sn(224Rn,224Rn’γ) 

General Comments:

1961Be28 (also 1961Po06): 224Rn produced and identified in 232Th(p,X),E=230 MeV, followed by chemical separation; but half- life of 4.9 h reported in this work is in disagreement with later measurements.

1964Bu02: 224Rn produced and identified in 232Th(p,X),E=660 MeV; measured half-life.

Mass measurements:

2012Ch19 (also 2008ChZI): precise mass measurement by Schottky Mass Spectrometry

2009Ne03: measured mass using ISOLTRAP mass spectrometer

Theoretical calculations: 22 references extracted from the NSR database are listed in document records.

Q-value: S(2n)=10069 10, S(2p)=14620 40 (2021Wa16)








E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
Final Levels
     0A 0+ 107 m 3 
% β- = 100
   
   135.6 5 A (2+)     135.6 5 
     0
0+
   357.6 6 A (4+)     222.0 5 
   135.6
(2+)
   641.4 8 A (6+)     283.8 5 
   357.6
(4+)
   650.6 8 A (3-)     515.0 6 
   135.6
(2+)
   790.8 8 A (5-)     140?
  433.2 5 
   650.6
   357.6
(3-)
(4+)
   969.2 9 A (8+)     327.8 5 
   641.4
(6+)
  1006.4 10 A (7-)     216?
  365.0 5 
   790.8
   641.4
(5-)
(6+)
  1277.2 10 A (9-)     271?
  308.0 5 
  1006.4
   969.2
(7-)
(8+)
  1327.8 10 A (10+)     358.6 5 
   969.2
(8+)
  1588.3 13 A (11-)     260.5 8 
  311
  1327.8
  1277.2
(10+)
(9-)
  1706.8 11 A (12+)     379.1 5 
  1327.8
(10+)
  2098.7 13 ?A (14+)     391.8 6 ?
  1706.8
(12+)

E(level): From 120Sn(224Rn,224Rn’γ)

Jπ(level): As proposed by 2020Bu20 in 120Sn(224Rn,224Rn’γ), based on population of levels in an even-even nucleus in Coulomb excitation process with expected E2 excitations, and band associations. Evaluators assign Jπ values for excited states in parentheses as supporting arguments, in terms of transition multipolarities from angular distributions or correlations, linear polarizations, or conversion electron measurements are not yet available.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)Final Levels
Band 1 - g.s. band
     0 0+ 107 m 3 
% β- = 100
   
   135.6 5  (2+)     135.6 5 
     0
0+
   357.6 6  (4+)     222.0 5 
   135.6
(2+)
   641.4 8  (6+)     283.8 5 
   357.6
(4+)
   969.2 9  (8+)     327.8 5 
   641.4
(6+)
  1327.8 10  (10+)     358.6 5 
   969.2
(8+)
  1706.8 11  (12+)     379.1 5 
  1327.8
(10+)
  2098.7 13  (14+)     391.8 6 ?
  1706.8
(12+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)Final Levels
Band 2 - Octupole band based on (3-)
   650.6 8  (3-)      
   790.8 8  (5-)     140?
  433.2 5 
   650.6
   357.6
(3-)
(4+)
  1006.4 10  (7-)     216?
  365.0 5 
   790.8
   641.4
(5-)
(6+)
  1277.2 10  (9-)     271?
  308.0 5 
  1006.4
   969.2
(7-)
(8+)
  1588.3 13  (11-)     260.5 8 
  311
  1327.8
  1277.2
(10+)
(9-)

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 107 m 3 
% β- = 100
E(level): g.s. band.
   135.6(2+)   E(level): g.s. band.
   357.6(4+)   E(level): g.s. band.
   641.4(6+)   E(level): g.s. band.
   650.6(3-)   E(level): Octupole band based on (3-).
   790.8(5-)   E(level): Octupole band based on (3-).
   969.2(8+)   E(level): g.s. band.
  1006.4(7-)   E(level): Octupole band based on (3-).
  1277.2(9-)   E(level): Octupole band based on (3-).
  1327.8(10+)   E(level): g.s. band.
  1588.3(11-)   E(level): Octupole band based on (3-).
  1706.8(12+)   E(level): g.s. band.
  2098.7(14+)   E(level): g.s. band.

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