X rays predicted from flares of UV Ceti stars

X rays test the Pauli exclusion principle

X rays: 1. Production of X rays

X rays: 2. Absorption of X rays

X rays: 3. Scattering of X rays

X rays: 4. Ionization in gases

X rays: 5. The energy expanded in ionizing air

X rays: 6. Absorption spectra

X rays: 7. Crystal structure of metals and inorganic substances

X rays: 8. Crystal structure of organic and biological substances

X rays: 9. Radium

X rays: § 2. Ionization in gases, absorption and scattering of x rays

X rays: § 3. X-ray (and gamma-ray) quantity or dose. Protection

X rays: § 4. Radium

X rays: § 5. X-ray spectroscopy

X rays: § 6. Crystal structure of metals and inorganic substances

X rays: § 7. Crystal structure of organic and biological substances

X rays: § I. Production of X rays

X Trianguli

X Vulpeculae