Page -1106
204
Tl (3.78 yr.)
204
5-12-1964
NaI: 3” dia x 3”
1.18 g/cm2 Be
10 cm
NaI 81-204-1
Tl (3.78 yr.) Decay Scheme
3.78 yr.
0.0
2-
204
81
Tl
Q+ =347.3
105
2.90% + + decay
Q- =763.70
97.10% - decay
Hg K x-ray
0+
204
80
Hg
104
0.0
stable
0.0
stable
0+
204
82
Pb
Counts/Channel
Based on 6/18/2000 NNDC/BNL Data
GAMMA-RAY ENERGIES AND INTENSITIES
Nuclide:
103
204Tl
Eγ (keV)
Half Life: 3.78(2)
σ Eγ
Q
Iγ
R
σIγ
no gamma rays
no gamma rays
Eγ, σEγ, Iγ, σIγ, Levels from ENSDF Database as of June 14, 2000
102
101
100
0
5
10
15
20
25
30
35
40
Channel Number
Table of Contents
yr.
Level
ε
β−