595 / 1228
Notes
1. S
k
is in unit of cGy cm
2
h
-1
(or U)
2. At (r=r
0
, θ= θ
0
), D
0
(1, 90)= S
k
Λ.
3. If t
tx
>> t
1/2
D= D
0
/λ =D
0
t
1/2
/ln2.
4. If t
tx
<< t
1/2
(< 0.05 t
1/2
) D= D
0
t
tx
•
•
•
•
|
|
595 / 1228
Notes
1. S
k
is in unit of cGy cm
2
h
-1
(or U)
2. At (r=r
0
, θ= θ
0
), D
0
(1, 90)= S
k
Λ.
3. If t
tx
>> t
1/2
D= D
0
/λ =D
0
t
1/2
/ln2.
4. If t
tx
<< t
1/2
(< 0.05 t
1/2
) D= D
0
t
tx
•
•
•
•