As we said in our daily lives, we can already see public areas such as subway entrances, exhibition halls, stations, airports, large-scale event venues, etc. used for X-ray security inspection equipment. What are the core light sources and physical principles of the security inspection equipment we are studying? Today, follow Fangji Infinite x-ray security inspection equipment manufacturers to understand:

　　Let's take a look at the physical characteristics of this device. First, we must understand that the light source is actually an x-ray emitter, the degree of attenuation of the x-ray intensity of the x-ray security inspection machine and the wavelength of the light, and the mass, thickness and density of the object being illuminated related. When a narrow single-energy x-ray passes through a layer of uniform thickness material, the incident intensity only decays exponentially as the thickness of the penetrating object increases. The radiation intensity before entering the object and after transmitting the object and the thickness of the detected object X-ray attenuation coefficient is also called the absorption coefficient, which represents the attenuation index of X-rays passing through a unit length of material in a unit time, and is related to the physical The state is related to the chemical composition

  In order to avoid the difficulty of changing the linear attenuation coefficient with the change of the physical state of the substance, the mass attenuation coefficient can be used to express the attenuation of radiation per unit mass of the substance. For complex substances composed of many different atomic components, the composition of each component of the substance content. In practical applications, the half-value layer thickness is usually introduced to describe the attenuation of an energy ray by the absorber. Half-thickness refers to the thickness of an object that reduces the intensity of incident light to half of its initial value. For different energy rays, the same absorber has different half-thickness values, and for the same energy rays, different absorbers have different half-thickness values. The thickness value of the half-value layer varies with the type of the irradiated workpiece and the absorber. The larger the attenuation coefficient, the smaller the thickness of the half-value layer. The half-value layer is of great significance to the selection of radiation shielding materials.

  Above, we introduced the principle of light source light calculation of x-ray security inspection machine. Does it look a bit complicated? In fact, as a professional researcher, you don't need to have a thorough understanding. If you need to use x-ray security inspection machine, then here is a small suggestion for you, that is the light source. You will ask how penetrating it is. The higher the price, the more expensive. You must buy it according to your needs. There is also the amount of x-ray leakage, the smaller the better, generally less than 0 proves that the safety protection measures are better.