ADOPTED LEVELS, GAMMAS for 195At

Authors: Huang Xiaolong and Kang Mengxiao |  Citation: Nucl. Data Sheets 121, 395 (2014) |  Cutoff date: 1-Mar-2014 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-853×101 keV 5S(n)= 10836 keV 29S(p)= -240 keV 16Q(α)= 7339 keV 5
Reference: 2012Wa38

References:
  A  199Fr α decay (4.5 MS)  B  199Fr α decay (6.2 MS)
  C  147Sm(51V,3nγ) 

General Comments:

2005Ke10: 142Nd(56Fe,2np),E=262MeV, measured Eα, T1/2

2003Ke04: 142Nd(56Fe,2np),E=262MeV, measured Eα, T1/2

1996PuZZ: 164Er(36Ar,p4nγ) E=183, 199 MeV,measured Eα,T1/2

1995NoZW: 164Er(36Ar,p4nγ) E=5,6MeV/nucleon, measured Eα,T1/2

1995Le15: 141Pr(56Fe,xnγ) E=130 MeV,measured Eα,Iα

1967Tr06: 185Re(20Ne,xnγ) E=160-210 MeV, Enriched targets, tentative assignment from genetics with 195Po α’s via ε decay of 195At

2013Ny01: 147Sm(51V,3nγ), E(51V)=224 MeV. Measured Eγ, Iγ, γγ-coin, αγ-coin using RITU separator, GREAT spectrometer for particle detection and JUROGAM array of 43 Compton-suppressed HPGe detectors for γ rays at JYFL facility. Recoil-decay tagging technique. Deduced levels, J, π, strongly-coupled rotational band.

All data are from 2013Ny01.










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABC (1/2+) 290 ms 20 
% α = 100
     
    33.0 10  BC (7/2-) 143 ms 3 
% IT = 12 4
% α = 88 4
   33S
  100
[E3]
     0.0
(1/2+)
   118.8 5 ?  C     119.2 5 ?
  100

     0.0
(1/2+)
   293.6 5 ?  C (5/2+)     175.2 5 ?
  293.0 6 ?
   88 38 
  100 50 


   118.8
     0.0

(1/2+)
   648.8 9 ?  C (9/2+)     355.2 7 ?
  100

   293.6
(5/2+)
   0+X  C (13/2+)        
   281.29+X 20     (15/2+)     281.2 2 
  100

   0+X
(13/2+)
   516.3+X 4   C (17/2+)     235.1 4 
  517.1 6 
  100 26 
   94 37 


   281.29+X
   0+X
(15/2+)
(13/2+)
   719.9+X 7   C     438.6 6 
  100

   281.29+X
(15/2+)
   804.7+X 5   C (19/2+)     288.4 4 
  522.4 6 
  100 28 
   81 31 


   516.3+X
   281.29+X
(17/2+)
(15/2+)
  1056.6+X 6   C (21/2+)     250.8 7 
  541.0 5 
   74 26 
  100 32 


   804.7+X
   516.3+X
(19/2+)
(17/2+)
  1371.4+X 8   C (23/2+)     315.5 15 
  566.5 8 
   30 25 
  100 50 


  1056.6+X
   804.7+X
(21/2+)
(19/2+)
  1636.0+X 10   C (25/2+)     579.4 8 
  100

  1056.6+X
(21/2+)

E(level): From least-squares fit to Eγ data

T1/2(level): From recoil-α time distributions (2013Ny01)

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Strongly-coupled πi13/2 band.
   0+X (13/2+)        
   281.29+X 20  (15/2+)     281.2 2 
  100

   0+X
(13/2+)
   516.3+X 4  (17/2+)     235.1 4 
  517.1 6 
  100 26 
   94 37 


   281.29+X
   0+X
(15/2+)
(13/2+)
   804.7+X 5  (19/2+)     288.4 4 
  522.4 6 
  100 28 
   81 31 


   516.3+X
   281.29+X
(17/2+)
(15/2+)
  1056.6+X 6  (21/2+)     250.8 7 
  541.0 5 
   74 26 
  100 32 


   804.7+X
   516.3+X
(19/2+)
(17/2+)
  1371.4+X 8  (23/2+)        
  1636.0+X 10  (25/2+)     579.4 8 
  100

  1056.6+X
(21/2+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band based on 1/2+.
     0.0 (1/2+) 290 ms 20 
% α = 100
     
   293.6 5  (5/2+)     175.2 5 ?
  293.0 6 ?
   88 38 
  100 50 


   118.8
     0.0

(1/2+)
   648.8 9 ? (9/2+)     355.2 7 ?
  100

   293.6
(5/2+)

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(1/2+) 290 ms 20 
% α = 100
E(level): Band based on 1/2+.
    33.0(7/2-) 143 ms 3 
% IT = 12 4
% α = 88 4
%IT branch from recoil-α time distributions (2013Ny01).
   293.6(5/2+)   E(level): Band based on 1/2+.
   648.8(9/2+)   E(level): Band based on 1/2+.
   0+X(13/2+)   E(level): Strongly-coupled πi13/2 band.
   281.29+X(15/2+)   E(level): Strongly-coupled πi13/2 band.
   516.3+X(17/2+)   E(level): Strongly-coupled πi13/2 band.
   804.7+X(19/2+)   E(level): Strongly-coupled πi13/2 band.
  1056.6+X(21/2+)   E(level): Strongly-coupled πi13/2 band.
  1371.4+X(23/2+)   E(level): Strongly-coupled πi13/2 band.
  1636.0+X(25/2+)   E(level): Strongly-coupled πi13/2 band.

Back to top