TABLE
Isotope
OF
ISOTOPES
-10
Kr’1
2.1X105
Kr82 Kr83m
Stable
He,
Ne,
.sec yr (abundance
A,
Kr,
Xe,
and Rn,
of Preparation
IT
Brsl(p,
n);
daughter
EC
Kr80(n,y)
Se80(a,
n);
Kr82(d,
p);
Kr82(n,
y);
x-rays
on
of Decay
IT
. Kr83; Br83; Kr83
Stable
Kr84 Kr85m
Stable 4.36
11, 557.)
(abundance
56. 90!70)
U, daughter
~aughte
r Rb83
Natural;
~-78~0,
IT 22~0
Se82(a, Kr84
10.3
yr
Stable
Kr84(n,
P-
(abundance
P-
78 min
fission
U
Kr84(d, Rb85(n,
y);
fission
y);
Kr86(d,
p);
Rb87(n,
p);
fission
U
U,
Th
Kr89
3 min
P-
Fission
U,
Pu
Kr90
33
f3-
Fission
U,
Pu
Fission
U,
Pu
Fission
U,
Pu,
Fission
U,
Pu
Fission
U
Kr94
l,4sec
Kr97 xe121
1 sec
PF F PP-
40 min
P+
20 hr
EC
2 hr
EC,
9.8
Kr92
3. Osec
Kr93
2.0
xe122 xe123 xe124 xe125m
xe125 xe126 xe127
sec
sec
Stable
(abundance
IT
hr
Stable 75 sec
(abundance
1127
(?)
Th
PU
(p, 5n)
Natural 1127 (a,6n)Cs
O. 096~,)
55 aec
18.0
Fission U, 1127 (p, 7n) 1127 (p, 6n) f3+
U U
Kr86(n,
Fission
Kr9’
U,
fission
i=
aec
p);
fission 85 Br
2.8hr
Kr88
p);
a);
Natural;
17. 377.)
U
n);
daughter Kr85
fission
(n, y);
Sr88(n,
Kr86 87 ,Kr
81
fission
Natural;
(abundance
hr
Rb
Natural
11. 56~0)
114 min
(Cent’d]
Method
Type
‘Half - life
Kr81
OF
125;
daugh-
EC
ter Cs125 Te122 (a, n) Xe 124(n,
IT
Natural 1127 (a,4n)Cs
o. 0907,)
ter (Table
3
127;
y)
daugh-
Cslz7
Continues
on page
4)