Device and method for detecting material structure inside an atomic nucleus

A technology of internal matter and atomic nucleus, applied in the field of nuclear physics, can solve problems such as large limitations, inability to obtain the precise structure of the atomic nucleus, and inability to verify nuclear structure theory experiments, etc., to achieve two-dimensional position sensitivity, universality, accuracy and reliability effect

Inactive Publication Date: 2019-01-04
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the neutron production and measurement experiments have great limitations, the greater the energy, the finer the fragmentation products obtained, so the ...

Method used

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  • Device and method for detecting material structure inside an atomic nucleus
  • Device and method for detecting material structure inside an atomic nucleus
  • Device and method for detecting material structure inside an atomic nucleus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a device for detecting the internal substance structure of an atomic nucleus includes two parallel-plate avalanche detectors 1 and 2, and a silicon detector 3 is installed behind the parallel-plate avalanche detectors 1 and 2, and the silicon detector 3 A target core 4 is installed behind the detector 3, and two silicon microstrip detectors 5 are installed behind the target core 4, and a CsI crystal telescope array 6 is installed behind the silicon microstrip detector 5.

[0032] The two parallel plate avalanche detectors 1 and 2 are sensitive to two-dimensional positions, and can accurately obtain the emission direction of particles in the incident nuclear beam.

[0033] The silicon detector 3 is parallel to the parallel plate avalanche detectors 1 and 2 and the geometric centers are on the same straight line, so that the particle identification of each particle in the incident nucleus beam before the target nucleus 4 can be accurately carrie...

Embodiment 2

[0038] Using the device described in Embodiment 1 to detect the internal substance structure of the nucleus, proceed according to the following steps:

[0039] (1) According to the physical target, the atomic nucleus to be studied is selected as the incident beam, and enters a device for detecting the internal substance structure of the atomic nucleus described in claim 1.

[0040] (2) After the selected nuclear beam enters the two parallel plate avalanche detectors 1 and 2, the motion direction of each particle in the incident nuclear beam can be obtained.

[0041] (3) The selected atomic nucleus beam flies out of the parallel plate avalanche detectors 1 and 2 and then enters the silicon detector 3, and the energy loss ΔE signal can be obtained, combined with the time-of-flight spectrum of the particles, the particles of the beam in front of the target nucleus 4 can be obtained Discrimination, different particles in a nuclear beam can be identified.

[0042] (4) Hit the targ...

Embodiment 3

[0051] Using the device of Example 1 and the method of Example 2, with the Be target as the target nucleus, measure 17 C atomic energy internal material structure, get 17 The excitation energy spectrum before C rupture is as follows figure 2 shown.

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Abstract

The invention belongs to the nuclear physics experiment research field, and relates to a device and a method for detecting the material structure inside the atomic nucleus. The device sequentially comprises two parallel plate avalanche detectors from left to right. A silicon detector is arranged at the back of the parallel plate avalanche detectors. A target core is arranged behind the silicon detector, two silicon microstrip detectors are arranged behind the target core, and a CsI crystal telescope array is arranged behind the silicon microstrip detectors. The invention has the advantages ofsimple structure, convenient operation; by using the data obtained from each detector, the structure information of the atomic nucleus can be obtained after calculation, which is accurate and reliable.

Description

technical field [0001] The invention belongs to the field of nuclear physics and relates to a physical experiment device and method, in particular to a device and method for detecting the internal substance structure of an atomic nucleus. Background technique [0002] The application of neutron nuclear reaction technology has made a certain breakthrough in the study of atomic nucleus cluster structure. Based on neutron nuclear reaction, fragmentation reaction occurs after the incident particle collides with the target nucleus in the experiment, the fragmentation product is measured by the detector, and the excitation energy spectrum before fragmentation can be reconstructed by back-estimating the fragmentation product, and the combination of excitation energy and atomic nucleus The size of the energy can be compared, so as to obtain the cluster structure of the nucleus. However, the neutron generation and measurement experiments are very limited, the greater the energy, the...

Claims

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Application Information

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IPC IPC(8): G01T1/29
CPCG01T1/29
Inventor 周霞魏源马丹阳李加兴
Owner SOUTHWEST UNIVERSITY
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