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A detector using a wire array as a cathode, its use method and its calibration method

A detector and cathode technology, applied in the field of pulsed soft X-ray quantitative measurement, can solve problems such as difficulty in quantitative measurement

Active Publication Date: 2021-08-24
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

With the development of pulsed power devices and lasers, pulsed soft X-rays will become more and more powerful, making quantitative measurements with existing detectors more difficult

Method used

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  • A detector using a wire array as a cathode, its use method and its calibration method
  • A detector using a wire array as a cathode, its use method and its calibration method
  • A detector using a wire array as a cathode, its use method and its calibration method

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Embodiment

[0031] Please refer to Figure 1-Figure 3 The cathode wire array 7 is installed on the wire array frame 4 of the cathode assembly by hooking or welding, so that the cathode wire array 7 passes through the hole in the middle of the wire array frame 4 of the cathode assembly along a straight line. The cathode current drawing part 5 is connected with the wire array frame 4 of the cathode assembly. A light-transmitting hole 11 is opened on the wraparound anode sheet 8 , and the wraparound anode sheet 8 is connected with the anode current drawing part 9 . The cathode assembly 1 is placed inside the anode assembly 2, so that the central axis of the cathode assembly 1 coincides with the central axis of the anode assembly 2, and the minimum distances between each part of the cathode assembly 1 and the anode assembly 2 are approximately equal. Adjust the positional relationship between the cathode wire array 7 and the light-transmitting holes 11 on the surrounding anode sheet, so that...

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Abstract

The invention discloses a detector using a wire array as a cathode, a use method and a calibration method. The detector comprises: a wire array cathode assembly: a wire array frame, a wire array and a cathode current lead-out component; the wire array frame is a center with a hole The wire array includes at least one metal wire; the cathode current lead-out part is used to fix the wire array frame and conduct electricity; one end of the wire in the wire array is fixed on the wire array frame, and the other end of the wire passes through the wire array frame The hole in the center, the suspended metal wire in the hole constitutes the cathode working area of ​​the detector; the surrounding anode assembly: the surrounding anode sheet and the anode lead-out part; the surrounding anode sheet is a metal sheet with light-transmitting holes; the anode current The lead-out part is used to fix the surrounding anode sheet and conduct electricity; the central axis of the wire array frame along the long side coincides with the central axis of the surrounding anode sheet, and the detector in the present invention can achieve a higher saturation threshold, thereby satisfying the requirements of stronger measurement requirements for the soft X-ray radiant flux.

Description

technical field [0001] The invention relates to the field of quantitative measurement of pulsed soft X-rays, in particular to an X-ray diode for measuring the flux of strong pulsed soft X-rays and its calibration and use method. Background technique [0002] The X-ray diode is a detector suitable for measuring the flux of intense pulsed soft X-rays. The working region of the traditional X-ray diode cathode is a planar structure, and its saturation threshold is mainly determined by the space charge effect (Wang Hongbin, et al., Physics, 23(9), p561, 1994). The power of soft X-rays produced in modern laboratories using large pulsed power devices or large lasers is already very high. In order to measure the flux of soft X-rays, it is usually necessary to arrange the X-ray diodes several meters to tens of meters away from the radiation source (Wang Kunlun, et al., Strong Laser and Particle Beams, 28(4), 045009, 2016), combined with A neutral attenuator with a grid structure is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/24G01T7/00
CPCG01T1/24G01T1/241G01T7/005
Inventor 王昆仑张思群周少彤
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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