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煤用钚238同位素放射的 x 射线照射时,低原子序数(炭和氢)的元素吸收的辐射要比高原子序数(硅铁铝)的元素吸收的低一些,后者在煤中形成灰分。这些差异是可(在实验上)再现的,而且是易于测定的。本文将叙述这种技术如何用来确定煤的灰分并优化测定的精确度。本文以简单控制电路为例展示一些输出信号的使用。按操作的方便和收益来说,即时(即取)灰分测定的优点是突出的。
When coal is irradiated with x-rays from plutonium 238 isotopes, elements with low atomic numbers (carbon and hydrogen) absorb less radiation than elements with a high atomic number (ferrosilicon), which form ash in the coal. These differences are reproducible (experimentally) and easily measurable. This article describes how this technique can be used to determine coal ash and optimize the accuracy of the measurements. This article uses a simple control circuit as an example to show the use of some output signals. The advantages of instant (ie, take) ash determination are outstanding in terms of ease of operation and benefits.