Plasma flash x-ray generator (PFXG-02)

Plasma flash x-ray generator (PFXG-02)
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等离子闪光X射线发生器(PFXG-02)

DOI:
10.1117/12.516901
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发表时间:
2003
期刊:
--
影响因子:
--
通讯作者:
H. Ido
H. Ido
中科院分区:
--
文献类型:
--
作者:
E. Sato;R. Germer;Y. Hayasi;E. Tanaka;H. Mori;T. Kawai;T. Usuki;Koetsu Sato;H. Obara;M. Zuguchi;T. Ichimaru;H. Ojima;K. Takayama;H. Ido

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在等离子体闪光X射线发生器中,约200nF的高压主电容器由电源充电至50kV,电容器中的电荷在触发阴极后放电到X射线管中。然后产生闪光X射线。X射线管是一个可拆卸的三极管,它连接到一个压力约为1兆帕的涡轮分子泵上。由于阴极的电子流在X射线管内的电场作用下大致会聚到直径3.0 mm的棒状铁靶上,由铁离子和电子组成的弱电离线性等离子体通过靶的蒸发而形成。在充电电压为50kV时,最大管电压与主电容器的充电电压几乎相等,峰值电流约为20kA。随着充电电压的增加,形成线性等离子体,K系列特征X射线强度增大。在充电电压为50kV的条件下,在距X射线源1.0m处,X射线脉冲宽度约为800 ns,时间积分X射线强度约为10μC/kg。等离子体X射线通过两个铅缝后扩散。
In the plasma flash x-ray generator, high-voltage main condenser of about 200 nF is charged up to 50 kV by a power supply, and electric charges in the condenser are discharged to an x-ray tube after triggering the cathode electrode. The flash x-rays are then produced. The x-ray tube is of a demountable triode that is connected to a turbo molecular pump with a pressure of approximately 1 mPa. As electron flows from the cathode electrode are roughly converged to a rod iron target of 3.0 mm in diameter by electric field in the x-ray tube, the weakly ionized linear plasma, which consists of iron ions and electrons, forms by target evaporating. At a charging voltage of 50 kV, the maximum tube voltage was almost equal to the charging voltage of the main condenser, and the peak current was about 20 kA. When the charging voltage was increased, the linear plasma formed, and the K-series characteristic x-ray intensities increased. The x-ray pulse widths were about 800 ns, and the time-integrated x-ray intensity had a value of about 10 μC/kg at 1.0 m from x-ray source with a charging voltage of 50 kV. The plasma x-rays were diffused after passing through two lead slits.
采用铜靶二极管的单色闪光 X 射线发生器
DOI: --
发表时间: 2005
期刊: SPIE 5580
影响因子: --
作者:
E.Sato;M.Sagae;M.Komatsu;R.Germer;E.Tanaka;H.Mori;T.Kawai;T.Ichimaru;S.Sato;H.Ojima;K.Takayama;H.Ido
通讯作者: H.Ido
新型单色X射线发生器及其在高速射线照相中的应用
DOI: --
发表时间: 2007
期刊: SPIE (in press)
影响因子: --
作者:
E.Sato;R.Germer;H.Obara;E.Tanaka;H.Mori;T.Kawai;T.Inoue;A.Ogawa;M.Izumisawa;T.Ichimaru;K.Takahashi;S.Sato;K.Takayama
通讯作者: K.Takayama
采用热阴极三极管的特征脉冲 X 射线发生器
DOI: --
发表时间: 2006
期刊: 27th International Congress on High-Speed Photography and Photonics China
影响因子: --
作者:
Eiichi Sato;Rudolf Germer;Haruo Obara et al.
通讯作者: Haruo Obara et al.