The by.72-002 type measuring instru

The by.72-002 type measuring instrument of zhuochuan brand is used as the gamma ray ash measuring instrument, and the specific parameters are shown in table 4-4. The gamma ray ash analyzer uses the gamma ray emitted by the radioisotope americium 241 to interact with substances, resulting in photoelectric effect and Compton effect. The photoelectric effect increases with the increase of atomic number. When the ash content of coal is high, its average atomic number also increases, as shown in Figure 4-3.