Exploration of Cluster Headache in a PET-MRI Study

Inclusion Criteria: * Male * Age between 20 to 45 years old * Weight between 50 to 90 kg * No psychiatric or neurologic pathological history * No cranial trauma history with loss of consciousness * No juridical protection * Free and informed consent * Affiliated with a social security scheme or similar Exclusion Criteria: * Subject with present or past dependence on alcohol or any other addictive substance according to the DSM-IV-TR criteria, with the exception of nicotine, caffeine and cannabis * Subject already participating in another biomedical research project or having participated for less than a year in a study using ionizing radiation * Subject with a contraindication to MRI exams * Subject with a contraindication to PET scans using \[18F\] F13640: hypersensitivity to the active substance or to one of the excipients (sodium chloride) * Subject with a contraindication to sumatriptan * Patients with an active infectious disease or associated serious and progressive medical pathology * Subjects with an inability to understand or carry out the study (language barrier, obvious lack of motivation, etc...) as judged by the investigator * Patient having exceeded the annual amount of compensation authorized for participation in research protocols.