Page -1
210
Pb (22.3 yr.)
Kβ2
Kβ1
Kα1
Kα2
Po K x-rays associated with
5.0 day 210Bi decay
x10
bkg.
511 ann. rad.
803(210Po)/bkg.
bkg.
random sum(Lβ + 46)
random sum(Lα + 46)
Ll
Ge K x-ray
Lγ
12/12/2000
HPGe: 50 mm dia. x 20 mm
1.235 g/cm2 Be
20 cm
A2121200002
46
Lβ
Lα
Bi L x-rays
Table of Contents
Page -2
210
Pb (22.3 yr.)
8-22-1969
Si(Li): 30 mm2 x 3 mm
no absorber
1.75 cm
82-210-1
Hg L x-rays
Lα
Lβ
Bi M x-rays
Ll
Lγ
46
In & Sn K x-rays
from fluorescence
of detector contact
Table of Contents
Page -3210
210
5.013 day
210
Bi
100% - decay
100
Bi (5.0 day)
210
Tl (4.199 min.)
206
Q- =1161.5
no gamma rays
0+
Po
Based on 5/8/2000 NNDC/BNL Data
!" #! # !
Po (138 day)
'(
a decay
&':&
Q
σ γ
γ
γ
Pb (stable)
210
Pb
100% - decay
16
Q =5407.50
Q- =63.1
0-
46.539 (<3 ns)
1-
210
83
Bi
2+
%
Pb
Q
R
%
%
σγ
γσγγσγ !"#$!&'''
Po
100% decay
1.22x10-3 (<1 ns)
Q *,γ 7:''$
R
;!=!:'=!=!=!!=!"''
0.0
stable
100
Based on 5/8/2000 NNDC/BNL Data
GAMMA-RAY ENERGIES AND INTENSITIES
%&
210
84
803.1
206
82
!" #! # !
γ
803.10
0+
0.0
5.013 day
Based on 5/8/2000 NNDC/BNL Data
0.0
0+
46.539
84
σ γ
Po (138.376 day) Decay Scheme
0.0
γ
138.376 day
210
82
σγ
γσγγσγ !"
22.3 yr.
$
R
=$
Pb (22.3 yr.) Decay Scheme
0+
0.0
138.376 day
210
84
b- decay
b- decay
210
210
83
b- decay
Hg (8.15 min.)
0.0
1-
b- decay
206
Bi (5.013 day) Decay Scheme
Pb (22 yr.)
1.96x10-9% a decay
206
210
Pb Decay Chain
%&
Nuclide:
210Po
Eγ (keV)
β−
803.10
Half Life: 138.376(2)
σ Eγ
Q
Iγ
0.001 21
R
σIγ
0.000 04
Eγ, σEγ, Iγ, σIγ, Levels from ENSDF Database as of May 22, 2000
Q These Iγ are per 100 Decays of 210Po.
R Normalization factor is 1.0, and its uncertainty is taken to be 0.0.
Table of Contents
day
Level
803.1
α