Sun Nuclear, a Mirion Medical company, announced that its AdaptCHECK^™ software has been validated in collaboration with Siemens Healthineers technical experts and clinical partners for interoperability with the company's new radiotherapy system, Accela. Unveiled at the annual ASTRO conference, Accela is the first software-driven delivery system engineered for NeoArc (Dynamic Modulated Arc Therapy, DMAT), a new treatment technique that accelerates how radiation therapy is planned, delivered, and adapted.

AdaptCHECK, built on the SunCHECK^® Patient workflow, is Sun Nuclear's quality assurance (QA) software for adaptive radiation therapy. It delivers fast, patient-specific dose verification -- covering secondary dose calculations, plan-of-the-day recalculations, and log-file-based treatment monitoring -- so treatments stay safe and on track without slowing down care.

“For adaptive radiotherapy to realize its full potential, it must be fast and efficient," said Margaret Johns, President, Sun Nuclear – Radiation Therapy QA. “AdaptCHECK delivers the speed and efficiency needed for verification of adapted NeoArc plans, without disrupting workflow.”

Adaptive radiation therapy represents one of the most significant advances in modern cancer treatment, allowing clinicians to adjust a patient’s treatment plan, accounting for daily anatomical changes such as tumor shrinkage, weight loss, or organ movement. By tailoring each session to the patient's current anatomy, adaptive workflows have the potential to improve treatment precision, reduce dose to healthy tissue, and ultimately enhance clinical outcomes. As more clinics adopt this approach and the need for independent dose verification increases, tools like AdaptCHECK become essential.

Added Johns: “Sun Nuclear has always strived to empower the field of radiation therapy through efficient, independent QA solutions that enhance clinical confidence and patient safety, while easing new treatment technology adoption. With AdaptCHECK and with more Sun Nuclear solutions, we are very pleased to support the game-changing release of Accela with NeoArc.”

“The Accela radiotherapy system and NeoArc represent an important milestone for Siemens Healthineers and will empower cancer institutions to treat a broader range of patients, more precisely, and in significantly less time,” said Sasa Mutic, President of Radiation Oncology Solutions at Varian. “Sun Nuclear has demonstrated fast, secondary dose calculation for NeoArc treatment on Accela.”

For those attending ASTRO 2026 in Boston, please visit the Sun Nuclear booth #915 for demonstrations on AdaptCHECK, Daily QA^™ 4 Pro, SunSCAN^™ 3D, and additional solutions to support Accela with NeoArc adoption and implementation.