X-Ray Wavelength Range:
From: | To: |
X-ray wavelength refers to the distance between consecutive peaks of X-ray electromagnetic waves. X-rays occupy the portion of the electromagnetic spectrum between gamma rays and ultraviolet radiation, typically characterized by very short wavelengths.
X-rays typically have wavelengths in the range of:
This corresponds to frequencies of approximately 30 PHz to 30 EHz and photon energies from 100 eV to 100 keV.
Details: X-rays are widely used in medical imaging (radiography), security screening, materials analysis (X-ray diffraction), astronomy, and industrial inspection due to their ability to penetrate various materials.
Characteristics: X-rays are ionizing radiation, have high energy, can penetrate soft tissues but are absorbed by denser materials like bones and metals, and travel at the speed of light in vacuum.
Q1: How are X-rays generated?
A: X-rays are typically produced by accelerating electrons and suddenly decelerating them (bremsstrahlung) or by electron transitions in inner atomic shells.
Q2: Why are X-rays dangerous?
A: X-rays are ionizing radiation that can damage living tissue and DNA, potentially causing radiation sickness or increasing cancer risk with excessive exposure.
Q3: What's the difference between hard and soft X-rays?
A: Hard X-rays have higher energy and shorter wavelengths (0.01-0.1 nm), while soft X-rays have lower energy and longer wavelengths (0.1-10 nm).
Q4: How are X-rays detected?
A: X-rays can be detected using photographic film, scintillation counters, semiconductor detectors, or gas-filled detectors.
Q5: What safety precautions are needed with X-rays?
A: Lead shielding, limited exposure time, distance from source, and proper monitoring equipment are essential for X-ray safety.