An X-ray is a quick and painless procedure commonly used to produce images of the inside of the body. It's a very effective way of looking at the bones and can be used to help detect a range of conditions.-rays can be used to examine most areas of the body. They're mainly used to look at the bones and joints, although they're sometimes used to detect problems affecting soft tissue, such as internal organs. Problems that may be detected during an X-ray include: 1  bone fractures and breaks.
Spectrometer, Spectroscope, and Spectrograph. A spectrometer is any instrument used to probe a property of light as a function of its portion of the electromagnetic spectrum, typically its wavelength, frequency, or energy. The property being measured is usually intensity of light, but other variables like polarization can also be measured.
The method consists in covering the object with a photographic emulsion that is sensitive to radioactive emissions. The radioactive substances in the object are in a sense photographing themselvesâhence, the name. Autoradiography is widely used in physics, technology, biology, and medicineâin all cases where isotopic indicators are used. After the photographic emulsion is developed and fixed, a representation of the distribution under investigation appears on it.