What is deuterium lamp used for?

What is deuterium lamp used for?

A deuterium arc lamp (or simply deuterium lamp) is a low-pressure gas-discharge light source often used in spectroscopy when a continuous spectrum in the ultraviolet region is needed.

Why does a deuterium lamp produce a continuum?

Why does a deuterium lamp produce a continuum rather than a line spectrum? In a deuterium lamp, the lamp energy from the power source produces an excited deuterium molecule that dissociates into two atoms in the ground state and a photon of radiation. Consequently, the emission spectrum is a spectral continuum.

How do you dispose of deuterium lamps?

Find your area’s local hazardous waste facility on the Environmental Protection Agency’s (EPA) website (see Resources). Call to see what their rules are for each facility that you choose. Many will only make one pickup per year, in which case you’ll have to store your bulbs in a safe place and wait.

What do you mean by deuterium?

heavy hydrogen
Deuterium, (D, or 2H), also called heavy hydrogen, isotope of hydrogen with a nucleus consisting of one proton and one neutron, which is double the mass of the nucleus of ordinary hydrogen (one proton). Deuterium has an atomic weight of 2.014.

How does a hollow cathode lamp work?

The method involves using hollow cathode lamps containing the metal of interest. The metal in the lamp is subjected to an electric current, causing it to emit light at a characteristic wavelength specific to the element in the lamp. This light passes over a burner to a special detector that measures emitted intensity.

How do xenon lamps work?

Here’s the basic science behind how xenon lights work: The electrical current hits the electrodes, creating a powerful electrical force. The electricity causes the xenon gas atoms to split into smaller parts (ionization) The electrodes heat up, and the heat causes additional light.

Which light source has shortest life?

Incandescent bulbs
Incandescent bulbs generally have the shortest lifespans. The average incandescent bulb light span is approximately 750 -2,000 hours.

Which of the following uses deuterium and tungsten lamps as a light source?

Deuterium lamps are always used with a Tungsten halogen lamp to allow measurements to be performed in both the UV and visible regions. Also known as quartz Iodine lamps, these measure most effectively in the visible region from 320 – 1100 nm.