fuel pellet

基本解释

The solid fuel pellet (a ceramic oxide matrix) is the first barrier that retains many of the radioactive fission products produced by the fission process.
固体的燃料弹（陶式氧化物母体）是第一道防护，隔开裂变过程中产生的裂变放射。
Each fuel pellet measures just two millimetres across but costs around $40, 000, because they must be perfectly spherical to ensure they collapse properly when the laser light strikes.
此过程极其短暂，仅持续五十亿分之一秒。作为燃料的氢靶丸，每一个直径只有两毫米，价值却在四万美元左右，因为它们必须是完美的球体，以保证在被激光击中后能够以理想的方式发生坍缩。
After the centre temperature of fuel pellet is higher than about 1800, ETC increase with the centre temperature again.
当芯块中心温度大于1800℃左右时，有效热导率继续随中心温度升高而升高。

This calls for the lasers to be very finely tuned and the fuel pellet to be perfectly smooth, so that the implosion is symmetrical and fusion occurs.
ECONOMIST: Nuclear fusion
The U.K. company AWE and the Rutherford Appleton Laboratory have joined-forces with the National Ignition Facility in the U.S. to help provide energy using Inertial Confinement Fusion, in which a pellet of fuel is heated using powerful lasers.
FORBES: U.K. And U.S. Join Forces on Laser-Fusion Energy
An alternative is Inertial confinement fusion (ICF), in which fusion of nuclei is initiated by heating and compressing a fuel target, typically in the form of a pellet containing deuterium and tritium contained in a device called a hohlraum (hollow space or cavity) using an extremely powerful laser.
FORBES: U.K. And U.S. Join Forces on Laser-Fusion Energy