HATCH X-RAY Operating Manual
31
Anatomy
kV mA
As per R20
chart Time
(mS)
Reference dose for
different loading
factors
Dose
Meter
Reading
(mR)
Dose
Meter
Reading
(mR)
Cone
Cone
Short Long
Short
Long
Adult
Bitewing
70
6
100
320
8.49
27.34
Endodontic
Incisors
Maxilla
70
6
125
360
10.56
30.3
Mandible
70
6
100
320
8.49
27.34
Canine
Maxilla
70
6
160
500
13.65
42.41
Mandible
70
6
110
320
9.35
27.34
Molar
Maxilla
70
6
180
560
15.32
47.4
Mandible
70
6
125
360
10.56
30.3
Normal
Exposure
Incisors
Maxilla
70
6
125
360
10.56
30.3
Mandible
70
6
100
320
8.49
27.34
Canine
Maxilla
70
6
160
500
13.65
42.41
Mandible
70
6
110
320
9.35
27.34
Molar
Maxilla
70
6
180
560
15.32
47.4
Mandible
70
6
125
360
10.56
30.3
Occlusal
Maxilla
70
6
200
630
17.05
53.37
Mandible
70
6
200
630
17.05
53.37
Child
Bitewing
70
8
50
140
4.25
11.9
Endodontic
Incisors
Maxilla
70
6
80
220
6.8
18.76
Mandible
70
8
50
140
4.25
11.9
Canine
Maxilla
70
6
110
320
9.35
27.34
Mandible
70
6
71
200
6
17.05
Molar
Maxilla
70
6
125
320
10.56
27.34
Mandible
70
6
100
220
8.49
18.76
Normal
Exposure
Incisors
Maxilla
70
6
80
220
6.8
18.76
Mandible
70
8
50
140
4.25
11.9
Canine
Maxilla
70
6
110
320
9.35
27.34
Mandible
70
6
71
200
6
17.05
Molar
Maxilla
70
6
125
320
10.56
27.34
Mandible
70
6
100
220
8.49
18.76
Occlusal
Maxilla
70
6
125
360
10.56
30.3
Mandible
70
6
125
360
10.56
30.3
Table 3
: Default exposure values for short / long cone fast film – Mode 1
Summary of Contents for X-RAY
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