I don’t know how to start coding the content of the image above. I’ve only completed the triso particle declaration, and now I need to declare the geometric units as shown. Can someone help me? I’m trying to review the Japanese report and simulate that problem, and I’m currently stuck at this point. Can anyone help me? The content of this section is as follows:The active core has a height of 290 cm and effective diameter of 230 cm (Figures 1.42 and 1.43). The core consists of hexagonal graphite blocks 580 mm high and 360 mm across flats. These fuel blocks, control rod (CR) guide blocks, replaceable reflector blocks, and irradiation blocks are stacked vertically into columns. The active core contains 30 fuel columns. One column contains five fuel blocks. Each fuel block has 31 or 33 coolant channels, into which fuel rods are inserted. Fuel rods consist of a graphite sleeve containing 14 fuel compacts. Each fuel compact contains about 13,000 coated fuel particles (CFPs) randomly embedded in a graphite matrix (elsewhere is reported that each fuel compact contains about 13,500 particlesa ). Fuel-block assembly is depicted in Figure 1.44. A CFP is comprised of a spherical fuel kernel of low-enriched UO2 with a coating of four layers. The core has 12 different uranium enrichments between 3.4 and 9.9 wt.%