Exposure- Distance Conversion Chart - Digital Radiography Solutions
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1Created by Dennis Bowman and Carter Doupnik
Modified March30, 2013
Exposure- Distance Conversion Chart
Original SID
New
36in
40in
42in
44in
48in
60in
72in
100in
120in
SID
(91cm)
(102cm)
(107cm)
(112cm)
(122cm)
(152cm)
(183cm)
(254cm)
(305cm)
30in
0.7
0.6
0.5
0.5
0.4
0.3
0.2
0.1
0.1
(76cm)
36in
1.0
0.8
0.7
0.7
0.6
0.4
0.3
0.1
0.1
(91cm)
40in
1.2
1.0
0.9
0.8
0.7
0.4
0.3
0.2
0.1
(102cm)
42in
1.4
1.1
1.0
0.9
0.8
0.5
0.3
0.2
0.1
(107cm)
44in
1.5
1.2
1.1
1.0
0.8
0.5
0.4
0.2
0.1
(112cm)
46in
1.6
1.3
1.2
1.1
0.9
0.6
0.4
0.2
0.2
(117cm)
48in
1.8
1.4
1.3
1.2
1.0
0.6
0.4
0.2
0.2
(122cm)
50in
1.9
1.6
1.4
1.3
1.1
0.7
0.5
0.3
0.2
(127cm)
55in
2.3
1.9
1.7
1.4
1.3
0.8
0.6
0.3
0.2
(140cm)
60in
2.8
2.3
2.0
1.9
1.4
1.0
0.7
0.4
0.3
(152cm)
72in
4.0
3.2
2.9
2.7
2.3
1.4
1.0
0.5
0.4
(183cm)
100in
7.7
6.3
5.7
5.2
4.3
2.8
1.9
1.0
0.7
(254cm)
120in
11.1
9.0
8.2
7.4
6.3
4.0
2.8
1.4
1.0
(305cm)
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