Here is a completed example of the gamma wave/image text, filling in the blanks:
Gamma Rays are electromagnetic waves with the shortest wavelengths and highest frequencies. They have the highest energy and are the most penetrating of all the electromagnetic waves.
Radioactive substances and nuclear reactions produce gamma rays. Gamma rays are also used in medical imaging and cancer treatment. Used to kill cancer cells inside the body.
Used to examine internal body structures. A patient will be injected with fluid that emits gamma rays. The gamma ray detector can form an image of the inside of the body.
Some objects in space give off huge amounts of gamma rays. Gamma Rays are partially shielded by Earth’s atmosphere. Gamma ray telescopes that detect the gamma rays must be placed above the Earth’s atmosphere.
Astronomers believe that explosions of supernovae in the distant galaxies are one way of producing gamma rays.