45 20 Ca 25 1 Decay Scheme 2 Nuclear Data 2.1 β

45
20
LNE – LNHB/CEA Table de Radionucléides
45
20
1
Ca
Ca 25
25
Decay Scheme
Le calcium 45 se désintègre par émission bêta moins principalement vers le niveau fondamental de
scandium 45.
Ca-45 disintegrates by beta minus emission to the Sc-45 ground state mainly.
2
Nuclear Data
T1/2 (45 Ca )
Q− (45 Ca )
2.1
γ1,0 (Sc)
162,64
258,0
(11)
(7)
d
keV
β − Transitions
−
β0,1
−
β0,0
2.2
:
:
Energy
keV
Probability
× 100
Nature
lg f t
245,6 (7)
258,0 (7)
0,0020 (7)
99,9980 (7)
Unique 1st Forbidden
Allowed
10,3
6
Gamma Transitions and Internal Conversion Coefficients
Energy
keV
Pγ+ce
× 100
Multipolarity
αK
αL
αM
αT
12,40 (5)
0,0020 (7)
M2
362 (8)
53,4 (12)
6,63 (15)
423 (9)
CEA/LNE-LNHB /M.-M. Bé
1
01/01/1984 − 4/4/2012
45
20
LNE – LNHB/CEA Table de Radionucléides
3
Electron Emissions
Energy
keV
ec1,0
4
5
Ca 25
Electrons
per 100 disint.
(Sc)
7,90 (5)
0,0017 (6)
−
β0,1
−
β0,1
max:
avg:
245,6 (7)
91,7 (7)
0,0020 (7)
−
β0,0
−
β0,0
max:
avg:
258,0 (7)
76,8 (7)
99,9980 (7)
K
Main Production Modes
(
Ca − 44(n,γ)Ca − 45
σ : 0,88 (5) barns
Possible impurities : Ca − 47
(
Sc − 45(n,p)Ca − 45
Possible impurities : Sc − 44, Sc − 44m, Sc − 46, K − 42
References
- P.Macklin, et al. Phys. Rev. 77 (1950) 137
(Beta spectrum)
- B.H.Ketelle. Phys. Rev. 80 (1950) 758
(Beta spectrum)
- R.S. Caswell. Phys. Rev. 86,1 (1952) 82
(Beta emission energies)
- C.F.G.Delaney, J.H.J.Poole. Phys. Rev. 89 (1953) 529
(Half-life)
- H.Thiry. Bull. Soc. Royale Sci. Liège 25 (1957) 29
(Half-life)
- J.P.Cali, L.F.Lowe. Nucleonics 17 (1959) 86
(Half-life)
- E.I.Wyatt, S.A.Reynols, T.H.Handley, W.S.Lyon, H.A.Parker. Nucl. Sci. Eng. 11 (1961) 74
(Half-life)
- S.C. Anspach, L.M.Cavallo, S.B.Garfinkel, J.M.R Hutchinson, C.N.Smith.. NP-15663 (1965)
(Half-life)
- M.S. Freedman, F.T.Porter, F.Wagner Jr.. Phys. Rev. B563 (1965) 140
(Gamma-ray energies K-Conv. Elec. emission probabilities K/L)
- F.Hareux. CEA Report R 3315 (1967)
(Beta spectrum)
- B.Sitar, J.Chrapan, J.Oravec, K.Durcek. Jad. Energ. 16 (1970) 303
(Half-life)
- J.M.Los Arcos, L.Rodriguez, M.Roteta, E.Garcia-Torano. Nucl. Instrum. Methods Phys. Res. A339 (1994)
164
(Half-life)
- G.Audi, A.H.Wapstra, C.Thibault. Nucl. Phys. A729 (2003) 129
(Q)
- T.Kibédi, W.Burrows, M.B.Trzhaskovskaya, P.M.Davidson, C.W.Nestor Jr.. Nucl. Instrum. Methods
Phys. Res. A589 (2008) 202
(ICC)
CEA/LNE-LNHB /M.-M. Bé
2
01/01/1984 − 4/4/2012
45
20
LNE – LNHB/CEA Table de Radionucléides
Ca 25
- X.Mougeot, et al. RadioCarbon, P. Cassette Editor, ISBN 978 0 9638314 7 7 (2011) 249
(Beta emission energy)
- G.Audi, W.Meng. Private communication (2011)
(Q)
CEA/LNE-LNHB /M.-M. Bé
3
01/01/1984 − 4/4/2012
45
20
LNE-LNHB/CEA - Table de Radionucléides
7/2 - ; 0
0
45
Ca
20

Ca 25
162,64 (11) d
-
25
 Emission intensities
per 100 disintegrations
0,002
3/2+ ; 12,4
1
318 ms
99,998
7/2 - ; 0
0
Stable
45
Sc
21
24
-
Q = 258 keV
%  = 100
CEA/LNE-LNHB / M.-M. Bé
Scheme page : 1/1
01/01/1984 - 04/04/2012
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