Radiotherapy is a fundamental part of effective cancer treatment. Medical physicists are one of the personnel who play a major role in radiation planning for cancer patients, but in North Sumatra, there are still 71.4% who do not have competency certificates due to limitations in accessing appropriate training. The type of study is a research and development study. Data obtained directly from respondents to validate research products and their feasibility. The resulting training model is the ADVICE training model which consists of six syntaxes, namely: analyze, design, verify, implement, control and evaluate. The development of the ADVICE training model was developed from the ADDIE learning model. The products produced are in the form of model books, textbooks, training manuals for instructors and training manuals for training participants and videos of the results of making 3D FIF radiation planning techniques for nasopharyngeal cancer. The validity of the model development is measured with several tools. The validation sheet tool is used to assess the quality of the content, construction and syntax of the ADVICE training model and its feasibility is measured based on the results of the review by design experts, material experts and media. The results of due diligence on the product from the results of research on the development of the ADVICE training model are declared feasible by the user. The educational impact that occurs when using the ADVICE model is the formation of a simple, creative and flexible training concept. Participants create training products.

The prevalence of cancer in Indonesia is 1.8 per 1000 population. Radiotherapy is a fundamental part of effective treatment and management of cancer. Radiotherapy equipment can be used optimally by competent medical physicists, but in North Sumatra not all physicists have sufficient competence due to technical reasons leading to lack of access to training in their field, so it is necessary to provide special training for medical physicists with ADVICE model training. The paper will determine the effect of ADVICE training model on the competence of medical physicists in North Sumatra, by seek the differences in competency scores before and after training with ADVICE model. The competencies assessed included cognitive, affective, and psychomotor over treatment planning system (TPS)-material for seven medical physicists working in different hospitals in Medan City. This paper conducted the conclusion the mean cognitive score of respondents increased from 51.85 during the pretest to 90.28 during the posttest. The affective value of respondents as much as 85% has a value> 90. The average psychomotor score is 87.5 to 96.8. The ADVICE training model improves the competence of medical physicists in North Sumatra.