b'Figure 4.I-Loop X-Core System layout 3.In FY 2021, the I-Loop projectpenetrations requires modifica-completed a modification totion to the shielding known the ATR reactor vessel pres- as the Transfer Shield Plate. A sure boundary with a new Topfinal design is completed and Head Closure Plate. The maina request for proposals has design benefit is the additionbeen sent to potential fabrica-of eight new penetrations thattors for the Transfer Shield can be utilized for irradiationPlateMark II (Figure 5).testing. Access to these new 198 2023|AFC ACCOMPLISHMENTS'