According to the invention methods and structures for determining whether impingement of x-ray radiation upon potentially vulnerable discrete components, circuits and/or circuit pathways of an implantable medical device (IMD) causes modifications or damage thereto. The invention includes structures for deflecting impingement of x-ray radiation from said potentially vulnerable components, circuits and/or circuit pathways. The x-ray radiation can be generated by various imaging modalities or unknown sources. Myriad IMDs can utilize the teaching of the present invention, including for example, a pacemaker, a drug delivery pump, a nerve stimulation device, a muscle stimulation device, an implantable cardioverter-defibrillator, a subcutaneous defibrillator, a deep brain stimulator or the like.