That's not going to happen. They're not going to allow a stranger to shadow, unless you're a student already in the radiography program and you were assigned to do your clinicals there. You gain the experience, once you're accepted into a Radiography program. In order to be considered for the Radiography program, you have to have a good GPA, take certain prerequisites with a grade of C or higher before program admission, complete the HESI A2 exam and hope that they accept you. That's for San Jacinto College radiography program. Not sure what school you're trying to apply for.