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11
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[1
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] TECHNICAL DATA
1. X-ray tube ..................................................................... Toshiba D-0712 (Stationary Anode)
a.
Nominal f
ocal spot
value
.......................................... 0.7
(IEC60366)
b. Target material .......................................................... Tungsten
c. Target angle ............................................................... 16°
d. Maximum anode heat content ................................... 4.3kJ (6kHU)
2. Maximum x-ray tube assembly heat content ................. 150kJ (210kHU)
3. Rated peak tube potential ............................................. 70 kVp
4. Rated tube current ......................................................... 4 mA / 7 mA selectable
5. Maximum rated peak tube potential ............................. 70 kVp
6. Rated line voltage ......................................................... 120 V AC, 60Hz , Single Phase,
12 VA (Long term rating)
0.8 kVA (Momentary rating)
7. Line voltage range ........................................................ 108 V AC ~ 132 V AC
8. Range of line voltage regulation ................................... 0 ~ 3 %
9. Rated line current........................................................... 6.5 A at 70 kVp, 7 mA
10. Maximum line current ................................................. 7.2 A at 70 kVp, 7 mA
11. Exposure time .............................................................. 0.02 ~ 3.2 sec.(ON and OFF are zero crossed)
12. Inherent filtration ......................................................... 1.7 mm Al Equivalent
13. Added filtration ............................................................ 0.5 mm Al
14. Minimum filtration permanently in useful beam ......... 2.2 mm Al Equivalent at 70 kVp
15. Nominal roentgen output
4mA 7mA
a. Distal end of regular cone ......................................... 4.2 7.1 mGy/sec. ± 40 %
b. Distal end of long cone ............................................. 1.9 3.3 mGy/sec. ± 40 %
(Data obtained by direct measurement in the useful beam)
16. Nominal electrical output of H. V. Generator.............. 0.36kW at 70kVp, 7mA
17. Cone Source to skin distance Field size
a. Regular cone ............................................................. 8 inches (204 mm) 58 mm dia., circular
b. Long cone (option) ................................................... 12 inches (305 mm) 58 mm dia., circular
18. Maximum symmetrical radiation field ....................... 60 mm dia. at distal end of cone
19. Leakage technique factor ............................................ 70 kVp / 0.14 mA
(0.14 mA is maximum rated continuous
current for 7 mA with a duty cycle 1: 50)
20. Duty cycle ................................................................... 1: 50 (0.5 sec. exposure with 25 sec. interval)
21. Maximum deviation of tube potential, tube current and exposure time
a. Below 0.1sec. setting ................................................ ± 10 kVp, ± 2 mA, ± 1pulse
b. 0.1sec. setting & up .................................................. ± 8 kVp, ± 1 mA, ± 1pulse
22. Measurement base of technique factors
a. peak tube potential .................................................... Peak tube potential of conducting half cycle
b. tube current ............................................................... Average of tube current during one cycle of
line frequency
c. exposure time ............................................................ Impulses of power line frequency
23. Half value layer ........................................................... 1.5 mm Al over
24. Source to the base of cone distance ............................ 81 mm
25. Environmental condition for storage .......................... -20 ~ 70°C, 10 ~ 100%, 500 ~ 1060hPa
26. Environmental condition for operation ....................... 10 ~ 40°C, 30 ~ 70%, 700 ~ 1060hPa