Synchronous radiation soft X-ray non-destructive real-time position resolution ionization chamber
A technology of real-time position and ionization chamber, applied in the field of gas ionization chamber, to achieve the effect of non-destructive real-time monitoring of position
Active Publication Date: 2017-05-31
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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However, due to the limitations of weak current detection and beamline vacuum protection, there is no effective method for soft X-ray beamlines to realize in-situ real-time non-destructive monitoring of beams.
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[0028] Below, in conjunction with the accompanying drawings, preferred embodiments of the present invention are given and described in detail, so that the functions and features of the present invention can be better understood.
[0029] image 3 It shows an embodiment of the synchrotron radiation soft X-ray non-destructive real-time position-resolving ionization chamber of the present invention, which includes a sealed casing 1 filled with gas, a rectangular high-voltage electrode plate 2 and a rectangular collecting electrode arranged in the sealed casing 1 Plate 3 and rectangular protective ring 4. Wherein, the high-voltage electrode plate 2 and the collecting electrode plate 3 are vertically opposed in parallel, and the guard ring 4 surrounds the collecting electrode plate 3 and is insulated from the collecting electrodes.
[0030] In the present invention, the high-voltage electrode plate 2 is made of metal material; the collecting electrode plate 3 is spliced by two i...
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The invention provides a synchronous radiation soft X-ray non-destructive real-time position resolution ionization chamber, comprising a sealed housing, and a high voltage electrode plate and a collecting electrode plate which are arranged opposite to each other in up and down parallel in the sealed housing. The synchronous radiation soft X-ray non-destructive real-time position resolution ionization chamber is characterized in that the collecting electrode plate is rectangular and is formed by splicing two micro-channel board modules with right triangle shapes. According to the synchronous radiation soft X-ray non-destructive real-time position resolution ionization chamber provided by the invention, the collecting electrode plate is designed to be formed by splicing the two micro-channel board modules with right triangle shapes, and thus the ionization chamber can output a current that can be detected even working under the high vacuum by virtue of the amplification effect of the micro-channel board modules on the current signal, and the non-destructive real-time monitoring of the intensity and position of the soft X-ray beams can be further realized.
Description
technical field [0001] The invention relates to the field of gas ionization chambers, in particular to a synchrotron radiation soft X-ray nondestructive real-time position resolution ionization chamber. Background technique [0002] In recent years, the application of synchrotron radiation has developed rapidly, and the experimental methods using synchrotron radiation sources have been greatly improved. With the continuous improvement of experimental technology and the smaller and smaller sample sizes, the quality requirements of experiments for synchrotron radiation light are also increasing. The non-destructive real-time monitoring of the beam is particularly important during the experiment. The stability of the beam position is related to the change of the intensity and even energy of the monochromatic light on the experimental sample, which has an important impact on the final experimental results. For some experiments, such as CT scanning, it often takes a long time to...
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IPC IPC(8): H01J47/02G01T1/29
CPCG01T1/29H01J47/02
Inventor 薛超凡吴衍青王勇邰仁忠
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI