3 results about "Proportional counter" patented technology

The utility model discloses a device for leading out a cathode nuclear signal of a proportional counter tube, and belongs to the technical field of nuclear detection. In order to solve the technical problem that the measurement precision is influenced by signal distortion easily caused by leading out nuclear signals from the anode of the existing proportional counter tube, the utility model mainly adopts a mode of leading out nuclear signals from the cathode of the proportional counter tube, and is provided with a first signal joint, a second signal joint, a third signal joint and a metal shielding shell in a matched manner. According to the utility model, complete output and electromagnetic interference suppression of nuclear signals can be realized, and signal quality and device stability are improved.

The invention relates to the technical field of radiation detection, and provides a 2pi proportional counter which comprises an ionization cavity and an anode net, and one side wall of the ionization cavity in a first direction is a cathode plate; the anode net is arranged in the ionization cavity, and the anode net and the cathode plate are spaced in the first direction; the anode net comprises a plurality of anode wires, the anode wires extend in the second direction, the anode wires are arranged at intervals in the third direction, the anode wires are fixed into the ionization cavity after being pre-stretched, and the first direction, the second direction and the third direction are perpendicular to one another. The anode wire is fixed in a stretched state, the anode wire keeps tension, when the anode wire is in the stretched state, internal crystal lattices of the anode wire distort, the yield strength and the tensile strength can be remarkably improved, the internal stress of the anode wire in the stretched state can offset part of electric field force, and therefore the capacity of resisting electric field induced deformation is enhanced; bending deformation caused by an electric field can be restrained, and stability is improved.

This invention relates to a particle beam energy monitoring device and method. The device includes a tissue equivalent proportional counter, a data acquisition module, and a processing module. The tissue equivalent proportional counter is connected to the data acquisition module, and the processing module is connected to the data acquisition module. The tissue equivalent proportional counter is used to receive irradiation from a particle beam and generate an ionization signal under the irradiation of the particle beam. The data acquisition module is used to acquire the ionization signal output by the tissue equivalent proportional counter and obtain the pulse amplitude spectrum of the particle beam based on the ionization signal. The processing module is used to determine the energy of the particle beam in real time based on the pulse amplitude spectrum of the particle beam.