geiger counter

简明释义

盖革氏计数管

英英释义

例句

1.Before entering the nuclear facility, all workers must check their geiger counter for safety.

在进入核设施之前，所有工人必须检查他们的辐射计以确保安全。

2.The scientist used a geiger counter to measure the radiation levels in the area.

科学家使用辐射计来测量该地区的辐射水平。

3.He carried a geiger counter while hiking near the old mining site.

他在靠近旧矿区远足时携带了一个辐射计。

4.A geiger counter is essential for detecting radioactive materials during an emergency.

在紧急情况下，辐射计对于检测放射性材料至关重要。

5.The geiger counter beeped loudly, indicating high radiation levels nearby.

当辐射计发出响亮的哔哔声时，表明附近的辐射水平很高。

作文

The world we live in is filled with various forms of radiation, some of which are natural and others that are man-made. To measure these levels of radiation, scientists and safety professionals often use a device known as a geiger counter. A geiger counter (盖革计数器) is an instrument that detects and measures ionizing radiation, such as alpha particles, beta particles, and gamma rays. This device plays a crucial role in fields such as nuclear energy, environmental monitoring, and health physics.One of the primary functions of a geiger counter is to ensure safety in environments where radiation is present. For instance, nuclear power plants utilize this device to monitor radiation levels and ensure that they remain within safe limits. If the readings on the geiger counter exceed the acceptable thresholds, immediate action can be taken to protect workers and the surrounding community from potential exposure to harmful radiation.In addition to industrial applications, geiger counters are also used in medical settings. Radiologists and oncologists may use these devices to measure radiation doses during treatments. By monitoring the radiation levels, healthcare professionals can ensure that patients receive the appropriate amount of radiation therapy without exceeding safe limits. This is particularly important in cancer treatment, where precise dosages are vital for effective outcomes.Moreover, geiger counters are essential tools for environmental scientists who study the effects of radiation on ecosystems. After events like nuclear accidents or testing, these devices help assess the level of contamination in soil and water. For example, after the Fukushima disaster in Japan, numerous geiger counters were deployed to measure radiation levels in the environment. The data collected was crucial for understanding the extent of the contamination and for planning cleanup efforts.The technology behind a geiger counter is relatively straightforward. It typically consists of a Geiger-Müller tube, which contains a low-pressure gas. When radiation passes through the tube, it ionizes the gas, creating charged particles. These particles are then detected by the device, resulting in audible clicks or visual readings on a display. The number of clicks corresponds to the intensity of the radiation, allowing users to gauge the level of exposure.In everyday life, individuals can also benefit from using a geiger counter. For example, people living near former nuclear test sites or areas with high natural background radiation may choose to invest in a personal geiger counter to monitor their exposure. This empowers them to make informed decisions about their health and safety.In conclusion, the geiger counter (盖革计数器) is an invaluable tool in our society, serving multiple purposes across various fields. From ensuring safety in nuclear facilities to aiding in medical treatments and environmental assessments, its role cannot be overstated. As awareness of radiation exposure continues to grow, the importance of geiger counters will likely increase, making them essential devices for both professionals and the general public alike.