Precautions in lasers nonionising radiations, Science

Assignment Help:

Precautions : The following must always be observed while dealing with lasers.

1) Never look along a laser beam or expose any part of your skin to it. Beware of reflected laser radiation. (Any surface which reflects light will also reflect a laser.)

Block out any reflected laser light with opaque matt grey screens.

2) Always wear the correct type of goggles for the particular laser being used. A helium-neon laser, for example, gives a red beam, and some lasers generate radiation in the ultraviolet and infra-red regions of the spectrum as well as producing visible light.

Never operate lasers in the dark. The room should always be brightly lit to avoid enlargement of the pupil of the eye.

Warning notices should be set up and the working area should be fenced off.

The laser source should be fixed rigidly to a bench so that the direction of the beam is not altered by accidental movement.

Never align a laser while it is switched on. This alignment should be carried out optically before turning on the source.

Keep laser instruments in a securely locked store room when they are not in use.

 


Related Discussions:- Precautions in lasers nonionising radiations

What are the effects of temperature variations, What are the Effects of Tem...

What are the Effects of Temperature variations Different minerals present in the rock behave differently to the changing temperatures. The rocks expand on getting heated at day

Minerals and vltamins, Minerals and vltamins Minerals and vltamins ...

Minerals and vltamins Minerals and vltamins are not a source of energy but they are necessary in many of the steps involved in the release of energy in  the cells. Thus,  t

Enzyme, what is an enzyme

what is an enzyme

Twenty point programme and communication, The Twenty Point Programme and Co...

The Twenty Point Programme and Communication : In view of what we have discussed above, it may be useful to have a look at the Twenty Point Programme  (1986), which the Governme

Natural resources, Natural resources: Resources, or the wealth nature h...

Natural resources: Resources, or the wealth nature has bestowed on us are essential for civilised living, and therefore, they have to be wisely used. However, it is believed th

Historic mineral that was the original source of radium, Give the common na...

Give the common name of the historic mineral that was the original source of radium and the first substance in which helium was discovered on earth: Pitchblende

Critical thinking., In hydraulic machines a liquid that has filled a pipe i...

In hydraulic machines a liquid that has filled a pipe is pushed at one end of the pipe. The liquid then pushes a machine part located at other end of the pipe. Why isn''t gas used

Night sky, Night Sky: When you look up at the sky on a clear night, wha...

Night Sky: When you look up at the sky on a clear night, what do you-see? Most of  it is dotted with twinkling stars. You may see the moon or Venus as a bright point or Mars as

Separating mixture, laboratory apparatus for separating mixture

laboratory apparatus for separating mixture

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd