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논문 기본 정보

자료유형
학술저널
저자정보
Seok Moon Lee (Kumoh National Institute of Technology)
저널정보
한국진공학회(ASCT) Applied Science and Convergence Technology Applied Science and Convergence Technology Vol.24 No.5
발행연도
2015.9
수록면
136 - 141 (6page)

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초록· 키워드

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We studied the compact anode design to develop 100 kW rotating anode X-ray tube with large focal spot 1.2 mm, small focal spot 0.6 mm and tube voltage 150 kV for large hospital digital radiography using computer thermal simulation. The larger thermal radiation effect in a high vacuum can reduce the temperature of anode so the method to increase the surface area of anode is investigated. The anode has the multi-tier shape at the back side of TZM body of anode and also bigger diameter of anode. The number of multi-tiers was varied from 6 to 15 and the diameter of anode was also varied from Φ74 to Φ82. From ANSYS transient thermal simulation result, we could obtain 1056.4oC anode maximum temperature when applying 100 kW input power at 0.1 second on target focal track which is less than 1091℃ of the conventional 75 kW X-ray tube with reduced anode weight by 15.5% than the conventional anode. The compact anode of reduced anode weight is able to improve the unwanted noise when the rotor is rotating at high-speed and also reduce the rotational torque which the cost effective stator-coil is possible. It is believed that the anode with 15 ea multi-tiers using Φ82 can satisfy with the specification of the anode heat capacity. From the results of this paper, it has been confirmed that the proposed compact anode can be used as the anode of 100 kW rotating anode X-ray tube for digital radiography.

목차

I. Introduction
II. Thermal Simulation of Rotating X-ray Tube
III. Results and Discussion
IV. Summary
References

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