When the customs conducts security checks on import and export goods, baggage and personnel, portable radiation detectors can be used to detect whether there are illegally carried radioactive substances or radioactive exceeding the standard. With the increasing frequency of international trade, preventing the illegal inflow or outflow of radioactive substances through customs ports is an important link to protect national security and public health. Through rapid and convenient radiation detection of goods and baggage, potential radioactive threats can be detected in time, illegal transportation and smuggling of radioactive materials can be stopped, and nuclear safety and border security of the country can be maintained.

When an emergency such as a nuclear accident or radioactive material leakage occurs, a portable radiation detector is an important tool for emergency responders. It can quickly detect the radiation intensity and radiation type at the accident site and surrounding areas, providing key data for emergency decision-making. Emergency responders can determine the range of dangerous areas based on the test results, formulate personnel evacuation plans, and guide the implementation of protective measures. For example, in the Fukushima nuclear accident, rescuers used a large number of portable radiation detectors to grasp the radiation pollution situation in a timely manner, effectively carried out emergency rescue and personnel evacuation, and minimized the harm of nuclear accidents to personnel and the environment.

In the medical industry, portable radiation detectors are mainly used for radiation monitoring during radiopharmaceutical treatment and diagnosis. In the Department of Nuclear Medicine, doctors use radiopharmaceuticals for disease diagnosis and treatment of patients, such as thyroid function examination, tumor imaging, etc. In these processes, it is necessary to precisely control the dose of radiopharmaceuticals and monitor the radiation levels of patients and the surrounding environment to ensure the treatment effect and safety. Portable radiation detectors can help healthcare workers detect the activity of radiopharmaceuticals in real time, as well as conduct radiation protection monitoring of work areas and personnel during operation to avoid unnecessary radiation exposure and protect the health of both doctors and patients.

In the industrial field, many production processes may generate radiation, such as radioactive logging in the petrochemical industry, which requires the use of radioactive sources to measure various parameters of the formation. Portable radiation detectors can be used to detect the leakage of radioactive sources and the radiation level in the operation area to ensure the safety of workers and the normal progress of production. In the electronics manufacturing industry, the production process of some semiconductor materials and components may involve radiation processes. The use of this equipment can conduct radiation detection on the production environment and products to ensure product quality and production environment safety. At the same time, in the field of industrial flaw detection, when using radiation to detect metal materials, it is also needed to monitor the radiation dose to prevent excessive radiation from causing harm to personnel and equipment.

Portable radiation detectors play an important role in environmental radiation monitoring. Environmental protection departments can use them to detect radiation levels in soil, water sources, air and other environmental elements, and detect abnormal emissions or leaks of radioactive substances in a timely manner. For example, in areas around nuclear facilities and near radioactive waste disposal sites, regular or irregular inspections can effectively assess the degree of radiation pollution in the environment and provide data support for environmental protection and governance. In addition, in some areas where natural radioactivity may exist, such as some rare earth mining areas, this equipment can also be used to monitor natural radiation background levels, providing a reference for local environmental planning and resource development.