First, I should consider the legitimate sources where such a handbook might be published. Medical textbooks are often published by reputable publishers like Elsevier, Wiley, Springer, or maybe AAPM (American Association of Physicists in Medicine). I should check if there's a widely used handbook in that field, perhaps one like "Radiography Essentials for Limited Practice" by Mary Alice Stains and Kathy Schleming, or maybe "Mosby's Textbook for Long-Term Care Nursing Assistants". But I need to confirm the title.