Introduction: The temporary trauma teams in trauma alerts consist of a diverse group of unique professionals requiring interprofessional collaboration and coordination to achieve efficient, high-quality care. The uncertain situation and complex care environment impose high demands on team dynamics such as individual attitudes and team behaviours. Within interprofessional teams, interaction and coordination reflect the collective success of collaboration and the achievement of goals. Interactions with radiographers have increased in trauma teams given computed tomography's prominent role in providing crucial knowledge for decision-making in trauma care. This study aimed to explore radiographers' experiences of interprofessional collaboration during trauma alerts. Method: The study was designed with focus group methodology, including 17 radiographers participating in five focus groups, analysed with an inductive focus group analysis. Results: An overarching theme, "On the edge of decision-making", emerged along with three subthemes: "Feeling included requires acknowledgement", "Exclusion precludes shared knowledge", and "Experience and mutual awareness facilitate team interaction". Conclusions: Interprofessional collaboration from the radiographer's perspective within trauma teams requires a sense of inclusion and the ability to interact with the team. Exclusion from vital decisionmaking obstructs radiographers' comprehension of situations and thereby the interdependence in interprofessional collaboration. Implications for practice: Common platforms are needed for knowledge sharing and team practices, including radiographers' areas of responsibility and relational coordination to foster interprofessional relationships. Through these means interdependence through awareness and shared knowledge can be facilitated on trauma teams. (c) 2023 The Authors. Published by Elsevier Ltd on behalf of The College of Radiographers. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).