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

Waves, Do You Know Where i Might Be Able To Find An Online Science book for...

Do You Know Where i Might Be Able To Find An Online Science book for Chapter 16 In 8th Grade

Explain immunoglobulin m - classification of antibodies, Immunoglobulin M -...

Immunoglobulin M - Classification of Antibodies Protects against bacteria, gives an early immune response, present on surface of lymphocytes. It stays confined to blood stream

Water pressure changes with depth, Water pressure changes with depth Us...

Water pressure changes with depth Use the funnel and manometer which you made in the last experiment. Fill a tall glass jar or pail with water. Calculate the pressure just belo

Carbon dioxide dry powder and vapourising liquid, Carbon dioxide, dry powde...

Carbon dioxide, dry powder and vapourising liquid extinguishers : Fires produced by spilled liquids should be extinguished by directing the jet or discharge horn towards the near

Soil pollution, Soil Pollution: The problem of soil pollution is rapi...

Soil Pollution: The problem of soil pollution is rapidly increasing in  the rural, urban and industrial areas due to unscientific and irrational disposal of solid wastes gene

What is a clinical trial?, Question 1 What is medical evidence? What are t...

Question 1 What is medical evidence? What are the types of medical evidence? What are the precautions should be taken by a medical officer while issuing medical certificate? Q

Plant cells, what is the plant cells roll?

what is the plant cells roll?

Explain ablation, What is ablation? Ans)  Ablation is a technological t...

What is ablation? Ans)  Ablation is a technological term for the loss of snow and ice from a glacier. The process happens by a combination of the two physical processes, meltin

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

Darwin and natural selection, Darwin and Natural Selection: The Engli...

Darwin and Natural Selection: The English naturalist Charles Darwin (1809-1882) explained how biological evolution took place,  in his remarkable "The Origin of  Species" in

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