4
14.2.2.
CALIBRATION
.................................................................................................................
74
14.2.3.
MAXIMUM CONTRAST RESOLUTION
.....................................................................
75
14.3.
QA
DIAGNOSIS
FOR
CEPHALOMETRIC
...........................................................................................
76
14.3.1.
BEAM POSITION
.............................................................................................................
76
14.3.2.
CALIBRATION
.................................................................................................................
76
14.3.3.
MAXIMUM CONTRAST RESOLUTION
.....................................................................
77
14.4.
QA
DIAGNOSIS
FOR
TOMOGRAPHY
...............................................................................................
79
14.4.1.
PREPARING X-RAY UNIT
.............................................................................................
79
14.4.2.
CONTRAST SCALE
.........................................................................................................
80
14.4.3.
NOISE AND UNIFORMITY
............................................................................................
80
14.4.4.
SLICE THICKNESS
.........................................................................................................
81
14.4.5.
HIGH CONTRAST SPATIAL RESOLUTION
..............................................................
81
14.4.6.
LOW CONTRAST DETECTABILITY
..........................................................................
82
14.5.
DOSE
MEASUREMENT
...................................................................................................................
82
14.6.
QA
REPORT
....................................................................................................................................
84
15.
INSTALLATION,
INSPECTION
AND
MAINTENANCE
............................................................................
85
15.1.
INSTALLATION
...............................................................................................................................
85
15.2.
PERIODIC
INSPECTION
...................................................................................................................
85
15.3.
PREVENTIVE
MAINTENANCE
.........................................................................................................
86
15.4.
CORRECTIVE
MAINTENANCE
.........................................................................................................
86
16.
DISPOSAL
OF
THE
UNIT
.....................................................................................................................
87
16.1.
ENVIRONMENTAL
CONTAMINATION
............................................................................................
87
17.
TECHNICAL
SPECIFICATIONS
.............................................................................................................
88
17.1.
REGULATORY
INFORMATION
........................................................................................................
88
17.2.
GENERAL
INFORMATION
...............................................................................................................
88
17.3.
RADIOLOGICAL
INFORMATION
......................................................................................................
89
17.4.
X
‐
RAY
GENERATOR
........................................................................................................................
90
17.4.1.
SPECIFICATIONS
...........................................................................................................
90
17.4.2.
CHARACTERIZATION
..................................................................................................
90
17.5.
X
‐
RAY
TUBE
....................................................................................................................................
91
17.5.1.
SPECIFICATIONS
...........................................................................................................
91
17.5.2.
TUBE CHARACTERIZATION
.......................................................................................
91
17.6.
EQUIPMENT
TESTED
ACCORDING
STANDARDS
............................................................................
93
17.7.
MAXIMUM
SYMMETRICAL
RADIATION
FIELD
...............................................................................
97
17.7.1.
IRRADIATED FIELD SIZE – ANALOG AND DIGITAL PANORAMIC EXAM
(PAN: ADULT AND CHILD – TMJ – MAXILLARY SINUS)
........................................................
97
17.7.2.
IRRADIATED FIELD SIZE – DIGITAL CEPH EXAM:
.............................................
97
17.7.3.
IRRADIATED FIELD SIZE – ANALOG CEPH - LATERAL EXAM
.......................
98
17.7.4.
IRRADIATED FIELD SIZE – ANALOG CEPH - FRONTAL EXAM
.......................
98
17.7.5.
IRRADIATED FIELD SIZE – TOMOGRAPHIC EXAM:
...........................................
99
17.8.
ELECTROMAGNETIC
EMISSIONS
..................................................................................................
100
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