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发明公开
CN105321785A 固定阳极型X射线管 有权 转让

固定阳极型X射线管
摘要：
一个实施方式所涉及的固定阳极型X射线管具有阴极(10)、阳极(20)、阴极罩(30)、电绝缘性的真空外围器(50)。阴极(10)具有电子释放源。阳极(20)具有形成了用于释放出X射线的焦点的阳极靶(21)。阴极罩(30)包围阳极靶(21)，形成使X射线通过的开口部(30o)，并被设定为具有与阴极(10)相同的电位。真空外围器(50)收纳有阴极(10)、阳极靶(21)以及阴极罩(30)。h/r≤0.82。
摘要（英）：

One embodiment relates to a fixed-anode X ray tube comprising a cathode (10), an anode (20), a cathode cover (30) and an electric insulating vacuum periphery device (50). The cathode (10) is provided with an electron releasing source. The anode (20) is provided with an anode target (21) used for forming a focus point of released X rays. The cathode cover (30) surrounds the anode target (21), forms an open part (30o) through which the X rays pass and is set to have the electric potential identical with that of the cathode (10). The vacuum periphery device (50) accommodates the cathode (10), the anode target (21) and the cathode cover (30). h/r is no more than 0.82.

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