Pulsed X-Ray Radiography with Electron Linear Accelerator (I) Precise Control of Electron Linear Accelerator

1968 ◽  
Vol 7 (2) ◽  
pp. 102-111 ◽  
Author(s):  
Tōru Kanaji ◽  
Kyōichirō Yasuda ◽  
Shirō Ikuta ◽  
Michihiko Takeda
Keyword(s):  
Linear Accelerator ◽  
Electron Linear Accelerator ◽  
X Ray ◽  
Precise Control

Xray converter design for an electron linear accelerator

2013 ◽  
Vol 25 (9) ◽  
pp. 2393-2396
Author(s):  
张耀锋 Zhang Yaofeng ◽  
黄建微 Huang Jianwei ◽  
胡涛 Hu Tao ◽  
张明昕 Zhang Mingxin ◽  
江艳 Jiang Yan
Keyword(s):  
Linear Accelerator ◽  
Electron Linear Accelerator ◽  
X Ray ◽  
Converter Design

X‐Ray Method for Study of Explosively Accelerated Metal Systems Using a 7‐Mev Electron Linear Accelerator

1959 ◽  
Vol 30 (9) ◽  
pp. 794-799 ◽  
Author(s):  
Wilmot N. Hess ◽  
Marvin D. Martin ◽  
George C. McFarland ◽  
Wesley A. Rutz ◽  
Jasper A. Welch
Keyword(s):  
Linear Accelerator ◽  
Electron Linear Accelerator ◽  
Ray Method ◽  
X Ray

scholarly journals Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Yongfang Liu ◽  
Hiroshi Matsumoto ◽  
Lin Li ◽  
Ming Gu
Keyword(s):  
High Power ◽  
Free Electron ◽  
Free Electron Laser ◽  
Linear Accelerator ◽  
Beam Energy ◽  
Electron Linear Accelerator ◽  
X Ray ◽  
Voltage Instability ◽  
Beam Voltage ◽  
The Stability

AbstractX-ray free electron laser (XFEL) facility based on electron linear accelerator (LINAC) is regarded as one kind of the fourth-generation light source with the characteristics of high intensity, exceptional brightness, ultrashort pulse duration, and spatial coherence. In electron linear accelerator, energy of beam bunches is provided by high-power electromagnetic microwaves which are generated by a microwave tube called klystron. The stability of beam voltage of klystron occupies a key position in both the stability of output RF (Radio Frequency) power and the jitter of output RF phase, furthermore, it plays an extremely important role in beam energy stability of electron linear accelerator. In this paper, high power RF fluctuation and phase jitter of klystron output caused by beam voltage instability of klystron are analyzed and calculated. Influence of klystron beam voltage instability on beam energy gain in linear accelerator have also been further analyzed and calculated. The calculating procedure is particularly valuable for us to understand the relationship between pulse modulator stability and beam energy gain fluctuations. Finally, relevant experimental results measured by Shanghai Soft X-ray Free Electron Laser Test Facility (SXFEL-TF) is presented.

Fabrication and evaluation of calcium phosphate cement scaffold with controlled internal channel architecture and complex shape

2007 ◽  
Vol 221 (8) ◽  
pp. 951-958 ◽  
Author(s):  
X Li ◽  
D Li ◽  
B Lu ◽  
L Wang ◽  
Z Wang
Keyword(s):  
Tissue Engineering ◽  
Calcium Phosphate ◽  
Calcium Phosphate Cement ◽  
Complex Shape ◽  
X Ray Diffraction ◽  
X Ray ◽  
Precise Control ◽  
Internal Channel ◽  
Channel Architecture

The ability to have precise control over internal channel architecture, porosity, and external shape is essential for tissue engineering. The feasibility of using indirect stereo-lithography (SL) to produce scaffolds from calcium phosphate cement materials for bone tissue engineering has been investigated. The internal channel architecture of the scaffolds was created by removal of the negative resin moulds made with SL. Scanning electron microscopy (SEM) showed highly open, well-interconnected channel architecture. The X-ray diffraction examination revealed that the hydroxyapatite phase formed at room temperature in the cement was basically stable up to 850 °C. There was no phase decomposition of hydroxyapatite, although the crystallinity and grain size were different. The ability of resulting structure to support osteoblastic cells culture was tested in vitro. Cells were evenly distributed on exterior surfaces and grew into the internal channels of scaffolds. To exploit the ability of this technique, anatomically shaped femoral supracondylar scaffolds with 300-800 μm interconnected channels were produced and characterized.

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