Abstract
In this research, We study the effect of irradiation by gamma rays from (Cs137)source on the transmission, absorption coefficient and optical energy gap of the indirect,allowed, forbidden transition for poly (methyl methacrylat ) (PMMA) films prepared by usingcasting technique in room temperature. the absorption and transmission spectra has beenrecorded in the wave length rang (300-٩٠٠) nm .
The article was added to IASJ on 2012-05-22
1483 Total full text downloads since the date of addition
Year |
Total |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
2024 |
4 |
2 |
2 |
|
|
|
|
|
|
|
|
|
|
2023 |
54 |
4 |
4 |
5 |
5 |
8 |
5 |
2 |
5 |
5 |
3 |
4 |
4 |
2022 |
87 |
7 |
10 |
11 |
7 |
16 |
3 |
3 |
10 |
4 |
4 |
8 |
4 |
2021 |
104 |
11 |
13 |
15 |
6 |
12 |
15 |
7 |
5 |
1 |
3 |
9 |
7 |
2020 |
104 |
8 |
9 |
11 |
7 |
7 |
19 |
12 |
6 |
7 |
6 |
2 |
10 |
2019 |
87 |
8 |
6 |
9 |
5 |
6 |
10 |
6 |
6 |
7 |
6 |
12 |
6 |
2018 |
76 |
6 |
12 |
7 |
16 |
6 |
4 |
4 |
1 |
|
7 |
5 |
8 |
2017 |
141 |
15 |
13 |
16 |
12 |
23 |
6 |
9 |
12 |
9 |
4 |
8 |
14 |
2016 |
161 |
1 |
2 |
19 |
19 |
20 |
12 |
14 |
10 |
13 |
14 |
12 |
25 |
2015 |
247 |
9 |
30 |
23 |
31 |
29 |
20 |
2 |
16 |
12 |
21 |
28 |
26 |
2014 |
188 |
18 |
18 |
35 |
11 |
18 |
13 |
8 |
7 |
8 |
21 |
12 |
19 |
2013 |
167 |
14 |
10 |
13 |
21 |
17 |
10 |
6 |
9 |
8 |
15 |
25 |
19 |
2012 |
63 |
|
|
|
|
|
|
4 |
3 |
2 |
10 |
24 |
20 |
Usage is updated on a monthly basis.