Final answer:
Level 1 MRI personnel are those with basic MRI safety training, able to access the MRI environment under supervision but lacking extensive MRI safety knowledge.
Step-by-step explanation:
The White Paper on MRI safety categorizes individuals working around MRI technology into different levels of personnel. These classifications relate to the degrees of training regarding MRI safety procedures and potential risks. Level 1 personnel are typically defined as those individuals who have been trained and supervised to access the MRI environment but have not been extensively trained on MRI safety. Their training often includes general safety procedures, such as the dangers of ferromagnetic objects in the MRI suite and the importance of screening patients for MRI contraindications. However, the question does not provide the context of what the White Paper specifically outlines as 'Level 1' personnel, so for precise definitions, it is important to refer directly to the specific guidelines detailed in the paper.