Novel beam detector

Abstract

The invention discloses a novel beam detector comprising a shell, a metal plate, the scintillator panel and a CCD camera. The shell is internally provided with a detection chamber, and two sides of the detection chamber are respectively provided with a beam inlet port and a beam outlet port for the in and out of a beam. The beam inlet port and the beam outlet port are in the same straight line. The upper end of the detection cavity is provided with a detection window. The metal plate is hinged to the shell through a rotating shaft and is between the beam inlet port and the beam outlet port. The metal plate can move between a first position which blocks the beam and a second position which avoids the beam. The metal plate is grounded through a current meter. The scintillator panel is fixedly arranged at one side of the metal plate. The CCD camera is installed at the outer side of the detection window and is used for detecting light which is emitted by the scintillator panel and goes through the detection window. The novel beam detector has the advantages of rich measurement functions, low cost and easy mass production, a plurality of detectors can be installed in a beam line, the beam quality of the whole beam line is monitored, and the novel beam detector is convenient to use.

Description

technical field [0001] The invention relates to a novel beam current detector. Background technique [0002] Proton heavy ion radiation therapy for cancer is more accurate than conventional radiation therapy and causes less damage to normal cells. Its therapeutic devices and related technologies have developed rapidly in recent decades. In order to ensure high beam quality, multiple detectors are often arranged on the beam transport line to detect beam parameters, and feed back the data to the control system for corresponding adjustments to obtain beam current. [0003] Existing detectors for beam diagnosis generally include Faraday cups, ionization chambers, position detectors, etc., which are used to measure parameters such as beam intensity, energy, position, shape, and emittance. However, although the cost of the Faraday cup is relatively low, the test function is single. Although the ionization chamber and the position detector have rich functions, they are difficult...

AI Technical Summary

Problems solved by technology

However, although the cost of the Faraday cup is relatively low, the test function is single. Although the ionization chamber and the position detector have rich functions, the manufacturing is difficult, the cost is high, and the operation is complicated, which requires high ability and quality of the user.

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