ADOPTED LEVELS, GAMMAS for 9B

Authors: J.H. Kelley, C.G. Sheu, J.L. Godwin, Et Al. |  Citation: Nucl. Physics A745 155 (2004) |  Cutoff date: 31-Mar-2004 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-16494.5 keV 24S(n)= 18576.4 keV 14S(p)= -185.9 keV 9Q(α)= -1.69×103 keV 5
Reference: 2012WA38

References:
  A  9C β+ decay  B  6Li(3He,γ),(3He,n),(3He,p)
  C  6Li(3He,d),(3He,t),(3He,3He)  D  6Li(α,n)
  E  6Li(6Li,t)  F  7Li(3He,n),(3He,nγ)
  G  7Be(d,n),7Be(d,p)  H  9Be(p,n),9Be(p,PN)
  I  9Be(3He,t)  J  9Be(6Li,6He),9Be(7Li,7Be)
  K  10B(p,d),10B(p,NP)  L  10B(d,t)
  M  10B(3He,α),(3He,≈),(3He,2α)  N  11B(p,t)
  O  12C(p,α),12C(p,PT)  P  12C(t,6He),12C(3He,6Li)

General Comments:

See other reaction references in (1988Aj01).

Q-value: Note: Current evaluation has used the following Q record










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0.0AB DEF HIJKLMNOP 3/2- 0.54 keV 21 
% p = 100
     
  ≈1500?    E  HIJ  M O  ≈ 1.2 MeV
% α > 0
% p < 100
     
   2345 11 AB D F HIJKLMNOP 5/2- 81 keV 5 
% p = 0.5
% α = 99.5
     
   2751 25     EF HIJK M OP 5/2+ 614 keV 37 
% p ≈ 100
     
      2.78E3 16 A   E  H         1/2- 3.13 MeV 20 
% p ≥ 90
% α ≤ 10
     
      4.8E+3 1      F HIJ  M    1.2 MeV 2 
% α ≤ 100
     
   6985 50      F HI K  NOP 7/2- 2.18 MeV 15 
% p ≤ 100
     
  11640 50        H  K M OP (7/2)- 780 keV 45 
% p ≤ 100
     
  12160 40 A    F H     N   455 keV 20 
% p = 24 4
% α = 74 10
     
  14010 70 A    F H     N   0.39 MeV 11 
% p = 100
     
  14655.0 25 A    F  I    N   3/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
      11.87E3 16 
   12301 11 
  ≈13145
   14642.2 25 
   16.0 93 
  100 11 
   <4.1
   95.9 88 
M1
M1
E1
M1
      2.78E3
   2345
   1500
      0.0
1/2-
5/2-

3/2-
     14.70E+3 18           K      (5/2)- 1.35 MeV 20       
  15290 40              N          
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  15580 40              N          
  16024 25      F       N   180 keV 16       
     16.71E3 10 ?       H         (5/2+)        
  17076 4  B      I    N   22 keV 5 
% IT > 0
% 3HE < 100
   14718 11 
   17059 4 
 
 


   2345
      0.0
5/2-
3/2-
  17190 25   C  FG      N   113 keV 24 
% D > 0
% 3HE > 0
% p < 100
     
     17.54E3 10 ?       H         (7/2+)        
  17638 10  BC  FG      N   71 keV 7 
% D > 0
% 3HE > 0
% α > 0
% p < 100
     
     18.6E3 3 ? B      I K      1000 keV
% 3HE > 0
% p < 100
     
     20.7E3 5 ?        I        1.6 MeV 3       

E(γ): From level energy difference; recoil correction applied.

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Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
  14655.0 3/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
      11.87E3 16 M1B(M1)(W.u.)=0.033 20
3/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
   12301 11 M1B(M1)(W.u.)=0.186 28
3/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
  ≈13145E1B(E1)(W.u.)<4.5E-4
3/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
   14642.2 25 M1B(M1)(W.u.)=0.105 6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   23455/2- 81 keV 5 
% p = 0.5
% α = 99.5
T=1/2
Decay branching ratios from (2000Ge09).
E(level): Decay branching ratios from (2000Ge09).
   27515/2+ 614 keV 37 
% p ≈ 100
T=1/2
%p from (1966Wi08).
E(level): %p from (1966Wi08).
      2.78E31/2- 3.13 MeV 20 
% p ≥ 90
% α ≤ 10
Jπ from 9C β-decay and 6Li(6Li,t).
E(level): Jπ from 9C β-decay and 6Li(6Li,t).
      4.8E+3 1.2 MeV 2 
% α ≤ 100
α level at E=4.3 MeV 2 with Γ=1.6 MeV 2 from the unpublished thesis work of pugh 9Be(p,n) is referenced in (1988Mi03 and 1991Di03) and was adopted in (2004Ti02).
E(level): α level at E=4.3 MeV 2 with Γ=1.6 MeV 2 from the unpublished thesis work of pugh 9Be(p,n) is referenced in (1988Mi03 and 1991Di03) and was adopted in (2004Ti02).
  12160 455 keV 20 
% p = 24 4
% α = 74 10
T=1/2
Branching ratios from (2000Ge09). See also (2001Be51) who report %p=33 10 and %α=66 8..
E(level): Branching ratios from (2000Ge09). See also (2001Be51) who report %p=33 10 and %α=66 8..
  14010 0.39 MeV 11 
% p = 100
T=1/2
Branching ratios from (2000Ge09).
E(level): Branching ratios from (2000Ge09).
  14655.03/2- 0.377 keV 38 
% IT = 4.09
% p ≈ 44
% α ≈ 46
T=3/2
Branching ratios from 7Li(3He,N+γ) (1978Di08) (%IT), 7Li(3He,N+p) (1976Mc10) (%p) and 9C β-decay (2001Be51) (%α).
E(level): Branching ratios from 7Li(3He,N+γ) (1978Di08) (%IT), 7Li(3He,N+p) (1976Mc10) (%p) and 9C β-decay (2001Be51) (%α).
     14.70E+3(5/2)- 1.35 MeV 20  T=1/2
E(level): Decay mode not specified.
  15290   T=1/2
E(level): Decay mode not specified.
  15580   T=1/2
E(level): Decay mode not specified.
  16024 180 keV 16  T=(1/2)
E(level): Decay mode not specified.
     16.71E3(5/2+)   E(level): Decay mode not specified.
     17.54E3(7/2+)   E(level): Decay mode not specified.
     20.7E3 1.6 MeV 3  E(level): Decay mode not specified.

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