DLC Australia Pty Ltd Sourthern Office: 17-19 Horne Street Hoppers Crossing, Vic 3029 Ph:0393609700 Nothern Office: 6/1 Learjet Drive Caboolture, Qld 4510 Ph:0754283666 February 2009
Exposure time table (Small Animals) for Atomscope HFX90V- High Frequency X- ray unit FILMS (green sensitive)
Intensifying screens: Orthochromatic (green sensitive) Factor 400 FFD 75 cm (Film-Focus-Distance) Machine Development 30° - 32° C
X-ray grid: Focussed, 34 LPI, Ratio 6:1 FFD 80 cm
Region
Caput latero-lateral Caput dorso-ventral Vertebrae cervicales latero-lateral Vertebrae cervicales ventro-dorsal (VD) Vertebrae thoracales latero-lateral Vertebrae thoracales VD Vertebrae lumbales latero-lateral Vertebrae lumbales VD Pelvis latero-lateral Dysplasia coxae Thorax latero-lateral Thorax VD Abdomen latero-lateral pars cranialis Abdomen latero-lateral pars caudalis Abdomen VD Articulatio humeri latero-lateral Articulatio humeri VD Articulatio cubiti latero-lateral Articulatio cubiti cran.-caud. Carpus manus Articulatio genus latero-lateral Articulatio genus caud.-cran. Tarsus - Carpus manus / pedis
Cat appr. 4 kg
Small Dog appr. 8 kg
Medium Dog appr. 15 kg
Large Dog appr. 30 kg
Very Large Dog appr. 45 kg
kV / sec.
kV / sec.
kV / sec.
kV / sec.
kV / sec.
50 / 0,12 50 / 0,16 50 / 0,10 50 / 0,10 50 / 0,20 56 / 0,20 56 / 0,20 56 / 0,20 58 / 0,24 62 / 0,18 56 / 0,10 58 / 0,10 54 / 0,24
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56 / 0,20 56 / 0,24 50 / 0,06 56 / 0,07 50 / 0,06 50 / 0,08 50 / 0,04 50 / 0,06 50 / 0,08 50 / 0,04
Grid Grid
56 / 0,12 56 / 0,14 56 / 0,16 56 / 0,18 56 / 0,20 58 / 0,22 64 / 0,20 64 / 0,20 66 / 0,26 64 / 0,20 66 / 0,10 70 / 0,10 66 / 0,20 66 / 0,20 64 / 0,20 56 / 0,12 56 / 0,16 50 / 0,06 50 / 0,10 50 / 0,06 52 / 0,08 52 / 0,10 50 / 0,08
60 / 0,16 64 / 0,14 66 / 0,18 64 / 0,18 66 / 0,20 70 / 0,20 72 / 0,22 74 / 0,26 78 / 0,24 70 / 0,26 76 / 0,10 80 / 0,10 74 / 0,22 74 / 0,22 70 / 0,28 58 / 0,20 60 / 0,20 52 / 0,08 56 / 0,10 52 / 0,08 56 / 0,10 56 / 0,14 52 / 0,08
64 / 0,18 64 / 0,18 64 / 0,22 64 / 0,24 74 / 0,24 76 / 0,24 78 / 0,24 78 / 0,26 84 / 0,26 78 / 0,30 80 / 0,10 86 / 0,12 74 / 0,30 74 / 0,30 74 / 0,28 62 / 0,20 64 / 0,20 56 / 0,10 56 / 0,12 54 / 0,08 56 / 0,10 58 / 0,10 52 / 0,08
50 / 0,06 50 / 0,08 50 / 0,06 50 / 0,08 50 / 0,08 50 / 0,10 50 / 0,12 50 / 0,10 56 / 0,12 50 / 0,05 50 / 0,06 50 / 0,08 50 / 0,06 50 / 0,08 50 / 0,04 50 / 0,06 50 / 0,04 50 / 0,04 50 / 0,03 50 / 0,04 50 / 0,05 50 / 0,03
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General Advice All exposure times are standard values. It might be necessary to adjust or modify the above indicate values, depending on the type and brand of the intensifying screen and the x-ray film. If the developed radiographs turned out too light, they are underexposed. If the developed radiographs turned out too dark, they are overexposed. If pictures are too light, increase sec.by one step. If pictures are too dark, decrease sec. by one step. Do not change kV value. Darkroom conditions can also influence quality of radiographs. Check chemicals and temperature of developer (hand tank 18-20° C – Automatic processor 30-32° C).