ADOPTED LEVELS for 71Kr

Authors: Khalifeh Abusaleem, Balraj Singh |  Citation: Nucl. Data Sheets 112, 133 (2011) |  Cutoff date: 30-Nov-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.40×104 keV SYS(n)= 1.345×104 keV SYS(p)= 2.19×103 keV 13Q(α)= -2.17×103 keV 15
Reference: 2012WA38

General Comments:

Production and identification:

1981Ew01: 71Kr produced and identified in 93Nb(p,X) at 1 GeV, chemical mass separation, measured half-life

1995Bl23: fragmentation of 78Kr beam at 73 MeV/nucleon with a carbon target. SISSI/LISE spectrometer at GANIL. Energy loss and time-of-flight techniques.

1997Oi01: 93Nb(p,X) at 1 GeV, ISOLDE-CERN facility, measured γ, β, delayed protons, coincidences between different types of radiation

2002Lo13 (also 2002Bl17): fragmentation of 78Kr beam at 73 MeV/nucleon with a carbon target. SISSI/LISE spectrometer at GANIL. Energy loss and time-of-flight techniques.

2008NaZR: Ca(32S,X) and Ca(33S,X), recoil-β+ decay tagging method to identify γ rays in 71Kr. The details are not available

1964Fl03: 70-72Br or 70-72Kr claimed to have been produced in Ni(20Ne,X) E=140 MeV reaction and a delayed proton group of 2.5 MeV with a half-life of 23 s 4. It is not possible to associate this observation with a presently known activity

Mass measurement (Penning trap): 2009Sa12

Structure calculations: 1998Ur03, 1972Di03

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

Q-value: Uncertainties: ΔS(n)=760, ΔS(p)=720, ΔQ(α)=680 (syst,2009AuZZ)

Q-value: S(2n)=30630 770, s(2p)=5200 650, Q(εp)=7709 650 (2009AuZZ)

Q-value: Values in 2003Au03: S(n)=13320 760 (syst), S(p)=2790 720 (syst), Q(α) same as in 2009AuZZ, Q(εp)=7830 660





E(level)
(keV)
Jπ(level) T1/2(level)
  0 (5/2-) 100 ms 3 
% ε = 100
% εp = 2.1 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0(5/2-) 100 ms 3 
% ε = 100
% εp = 2.1 7
Other %εp=5.2 6 (1995Bl23).

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