摘要:
The disclosure provides a method for measuring X-ray energy of an accelerator in an inspection system, the method comprises: building a database comprising correspondence between half-value layer (HVL) and energy under a predetermined condition; measuring HVL for X-rays of the accelerator in the inspection system on line under the same predetermined condition; and comparing the measured HVL with the HVLs in the database comprising correspondence between HVL and energy to determine the X-ray energy of the accelerator. The method is applicable to a large-scale container/vehicle inspection system for measurement of X-ray energy / HVL of the accelerator so as to acquire source state of the inspection system in real time.
摘要:
Embodiments of the present application provide a detection method, apparatus and system. The detection method includes: acquiring information of at least two first positions through which a particle passes before penetrating an object under detection, and information of at least two second positions through which the particle passes after penetrating the object under detection, wherein the object under detection is a metal product; reconstructing, based on the information of the at least two first positions, a first track before the particle penetrates the object under detection; reconstructing, based on the information of the at least two second positions, a second track after the particle penetrates the object under detection; processing the first track and the second track to obtain feature information of the object under detection; and determining, according to the feature information and preset feature information of an object of a target type, a detection result of the object under detection. The detection method according to the embodiments of the present application can improve accuracy of the detection result.
摘要:
A collimator and an inspection system having the collimator are disclosed. The collimator includes: a collimator body including a first part and a second part; a collimating slit formed between the first part and the second part and having a first end and a second end in a longitudinal direction thereof; and a shielding member which is movable relative to the collimator body such that both a beam divergent angle and an elevation angle of a ray beam propagating through the collimating slit are varied. An inspection system and an inspection method for scanning a vehicle are further disclosed.
摘要:
A collimator and an inspection system having the collimator are disclosed. The collimator includes: a collimator body including a first part and a second part; a collimating slit formed between the first part and the second part and having a first end and a second end in a longitudinal direction thereof; and a shielding member which is movable relative to the collimator body such that both a beam divergent angle and an elevation angle of a ray beam propagating through the collimating slit are varied. An inspection system and an inspection method for scanning a vehicle are further disclosed.
摘要:
Provide is a ray dose detection device adaptable for coupling with a terminal and a method for detecting a ray dose, which relate to a field of an environmental detection technology. The device includes: a housing (1), a scintillator (2) and a light shielding layer (3). The housing (1) has an accommodating space (11) and a window (12), the accommodating space (11) is connected with the window (12); the scintillator (2) is configured to receive a ray and convert the received ray to a visible light, the scintillator (2) is located in the accommodating space (11), the scintillator (2) covers the window (12), an outer surface of the scintillator (2) includes a first outer surface and a second outer surface, and the first outer surface is adapted to a camera of the terminal; and the light shielding layer (3) is configured to shield the scintillator (2) from a visible light in an external environment, the light shielding layer (3) is arranged on the second outer surface of the scintillator (2), wherein the ray dose detection device is mountable on the terminal to enable the scintillator (2) and the window (12) to face the camera of the terminal, so as to convert the ray in the external environment to the visible light suitable for being received by the camera of the terminal.
摘要:
Provide is a ray dose detection device adaptable for coupling with a terminal and a method for detecting a ray dose, which relate to a field of an environmental detection technology. The device includes: a housing (1), a scintillator (2) and a light shielding layer (3). The housing (1) has an accommodating space (11) and a window (12), the accommodating space (11) is connected with the window (12); the scintillator (2) is configured to receive a ray and convert the received ray to a visible light, the scintillator (2) is located in the accommodating space (11), the scintillator (2) covers the window (12), an outer surface of the scintillator (2) includes a first outer surface and a second outer surface, and the first outer surface is adapted to a camera of the terminal; and the light shielding layer (3) is configured to shield the scintillator (2) from a visible light in an external environment, the light shielding layer (3) is arranged on the second outer surface of the scintillator (2), wherein the ray dose detection device is mountable on the terminal to enable the scintillator (2) and the window (12) to face the camera of the terminal, so as to convert the ray in the external environment to the visible light suitable for being received by the camera of the terminal.