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

Protozoa, #question.what is the importance of pritozoa to humans?.

#question.what is the importance of pritozoa to humans?.

Lab help, Which type of ripple marks would you expect to find on the floor ...

Which type of ripple marks would you expect to find on the floor of a standing body of waterion..

Rocks, would quartzite or sandstone break more easily. please explain

would quartzite or sandstone break more easily. please explain

Explain coenzyme, Coenzyme  : A molecule that binds to an enzyme and  i...

Coenzyme  : A molecule that binds to an enzyme and  is essential for its activity,  but  is  not  permanently altered  by  the  reaction. Many coenzymes are derived from vitami

Introduction to accidents and first aid, INTRODUCTION : In this unit, we s...

INTRODUCTION : In this unit, we shall discuss the need and the method for reporting an accident. We shall explain the choice of locating the first aid box and state its contents.

Personal protective devices, Personal Protective Devices : We shall now di...

Personal Protective Devices : We shall now discuss the details of protective devices required for safety in a laboratory. The aim of protective devices is to minimise the risk of

Beyond earth, is there any human out of galaxy? Have any astronauts went ou...

is there any human out of galaxy? Have any astronauts went out of galaxy?

Iron age, Iron Age: We briefly surveyed the ideas and techniques of  th...

Iron Age: We briefly surveyed the ideas and techniques of  the early human beings, and traced the roots of  science in  the primitive culture. You also read about the emergence

Explain increase in sound wave pressure through middle ear, Explain Increas...

Explain Increase in Sound Wave Pressure through Middle Ear There are certain factors which contribute to an approximately eighty-fold increase in sound wave pressure through mi

Determine the properties of soil taxanomy, DEtermine the properties of soil...

DEtermine the properties of soil taxanomy The system of Soil Taxonomy is based on soil properties which in turn depend on soil genesis i.e., the way soil is formed. A number of

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