Shandong University

Quanqi Shi

Xiaoli Wang

Chenyao Han

Shuo Wang

Pengzhi He

Shuai Wang

Shucheng Shi

Xianghong Jia

Xiaoyan Gao

Weiming Li

The present disclosure belongs to the technical field of neutron detection, and it relates to a structure for slow neutron detection and a method for energy spectrum measurement of slow neutrons, wherein the structure for slow neutron detection comprises: a shielding barrel, which is configured as square with an opening; and a detector unit, which is a slow neutron detector with position resolution function, wherein the detector unit is completely wrapped in the shielding barrel, and the detector unit is placed close to one of the sides of the shielding barrel that is perpendicular to the open side of the shielding barrel. When the structure for slow neutron detection moves at a set speed, the incident energy spectrum of slow neutrons can be inversely extrapolated on the basis of the number of slow neutrons at different depths.

Structure for slow neutron detection and method for slow neutron energy spectrum measurement

The present invention provides an intracellular radiation microdosimetric detection structure and detection method, and relates to the field of radiation microdosimetric detection technologies. The detection structure includes a first semiconductor detector unit, a first pixel array detector, a cellular microfluidic chip, a second pixel array detector, and a second semiconductor detector unit that are sequentially arranged in layers. The cellular microfluidic chip is configured for cell fixation and culture. The first semiconductor detector unit and the second semiconductor detector unit form a charged particle energy information detector combination for detecting deposit energy of charged particles in a semiconductor detector. The first pixel array detector and the second pixel array detector form a charged particle flux and position information detector combination for measuring a flux and an angle of charged particles incident at a position of the cellular microfluidic chip.

Intracellular radiation microdosimetric detection structure and detection method

The present application relates to a detection structure for fast neutrons and a method for acquiring a neutron energy spectrum, the detection structure for fast neutrons comprises seven semiconductor detection units and a conversion layer made of a hydrogen-containing material, the seven semiconductor detection units comprise a first, a second, a third, a fourth, a fifth, a sixth and a seventh semiconductor detection unit arranged sequentially, the first, the fourth and the seventh semiconductor detection unit constitute an anticoincidence detection group, the second and the third semiconductor detection unit constitute a neutral particle background detection group, the fifth and the sixth semiconductor detection unit constitute a recoil proton detection group, the conversion layer is disposed between the fourth and the fifth semiconductor detection unit, incident neutrons collision with hydrogen atomic nuclei and generate the recoil protons. The present application can effectively reduce influence of background signals on the measurement and improve accuracy of the inversed neutron energy spectrum.

Detection structure for fast neutrons and method for acquiring neutron energy spectrum

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Weihai, China

Quanqi Shi