Helical hexagonal double-sided silicon drift detector for large area and designing method thereof

A technology of silicon drift detector and design method, which is applied in the field of deep space detection, can solve the problems of small SDD unit area and high cost of splicing arrays, and achieve the effects of reducing the number of detectors, improving energy resolution, and saving costs

Inactive Publication Date: 2018-11-30
李正
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Problems solved by technology

[0008] Aiming at the problems existing in the prior art, the present invention provides a large-area spiral hexagonal double-sided silicon drift detector and its design method, whic

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  • Helical hexagonal double-sided silicon drift detector for large area and designing method thereof
  • Helical hexagonal double-sided silicon drift detector for large area and designing method thereof
  • Helical hexagonal double-sided silicon drift detector for large area and designing method thereof

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] Such as figure 1 Shown is a large-area spiral hexagonal double-sided silicon drift detector provided by an embodiment of the present invention. Among them, 1 is the front anode electrode, which is heavily doped N-type semiconductor silicon; 2 is the front cathode electrode, which is heavily doped P-type semiconductor silicon, and its shape is a hexagonal spiral; 3 is the front protection ring; 4 is a silicon body, which is lightly doped N-type semiconductor silicon; 5 is the cathode electrode on the reverse side, which is heavily doped P-type semiconductor silicon, and its shape is a hexagonal spiral; 6 is a protec...

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Abstract

The invention belongs to the technical field of deep space exploration and discloses a helical hexagonal double-sided silicon drift detector for large area and a designing method thereof, therein thedesigning method of the helical hexagonal double-sided silicon drift detector for large area comprises the following steps: determining the electric potential of anterior and posterior surfaces of thesilicon drift detector; the calculus of variations is used to calculate the optimum drift path of a carrier when drifting in the silicon drift detector from point S1 to point S2; determining the constant drift electric field of the optimum drift path; calculating the width distribution of the helical cathode of the silicon drift detector. By analyzing the drift laws of the carrier of SDD and thegrowth of heavily doped electrodes, and processing from the novel structure, the novel process integration design and the theoretical calculation method of particle-like nature of light, the double-sided electrodes with double-sided correlation is designed, which not only maintain uniform electron drift electric field but also provide smooth drift track. Finally, an innovative designing and manufacturing method for collecting SDD with high efficiency, high energy resolution ratio for soft X-ray particles with intensity of 0.5-15 keV is established.

Description

technical field [0001] The invention belongs to the technical field of deep space detection, in particular to a large-area spiral hexagonal double-sided silicon drift detector and a design method thereof. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] X-ray pulsars are remnants of the evolution, collapse, and supernova explosion of massive stars. They have an extremely stable rotation period (stability is better than 10-19s / s), and are known as the most accurate astronomical clock in nature. , deep space exploration and interstellar flight spacecraft provide high-precision navigation information such as position, velocity, time and attitude, and pulsar-based navigation is a new type of navigation system that can never be destroyed. Compared with GPS and Beidou navigation methods, the new system pulsar navigation technology has incomparable advantages in the application of near-ground and deep space...

Claims

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Application Information

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IPC IPC(8): G06F17/50G01T1/24
CPCG01T1/24G01T1/241G06F30/20
Inventor 李正刘曼文
Owner 李正
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