basic laser safety version 2 last updated march 2014 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Basic Laser Safety version 2 last updated March 2014 PowerPoint Presentation
Download Presentation
Basic Laser Safety version 2 last updated March 2014

Loading in 2 Seconds...

play fullscreen
1 / 18

Basic Laser Safety version 2 last updated March 2014 - PowerPoint PPT Presentation


  • 121 Views
  • Uploaded on

Basic Laser Safety version 2 last updated March 2014. Course content. What is the general nature of laser radiation? What are the laser health hazards? Why are there different laser classes and warning labels? What are the University’s laser hazard controls?

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Basic Laser Safety version 2 last updated March 2014' - nevada-cervantes


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
course content
Course content
  • What is the general nature of laser radiation?
  • What are the laser health hazards?
  • Why are there different laser classes and warning labels?
  • What are the University’s laser hazard controls?
  • What are the laser hazard controls for non-routine activities and emergencies?
  • An Introduction to the University Laser Safety Standard
course aims
Course Aims
  • Laser users will be able to:
  • Describe laser radiation
  • List parts of the body at risk
  • Identify laser injuries.
  • Identify different class of lasers
  • Recognise laser warning symbols
  • List common laser safety controls
  • Find to the University Laser Safety Standard
why is laser light different

Why is laser light different?

Light emitted from laser is manmade. Laser beam properties:

  • Monochromatic
  • Very intense
  • Low divergence
  • Coherent.
laser health effects

Laser health effects

Lasers that emit ultraviolet (UV) and infrared (IR) wavelengths can cause:

  • Thermal effects in tissue - burns
  • Photochemical effects – change cells
  • Acoustic transients – physical shock to tissue
  • Chronic (long time) exposure
ultraviolet uv risk to eyes

Ultraviolet (UV): risk to eyes

UV – Keratitis, cornea turns white (6 -12 hours after exposure), retina damage

Retinal damage caused by a class 3 laser reflected off a mirror. Permanent vision damage.

(Source: http://www.aurpo.org.uk/index.php/2012-01-10-20-18-25/general-news/55-laser-pointers)

infrared ir risk to eyes

Infrared (IR): risk to eyes

  • IR – flash burns to the cornea and rapid temperature rises in absorbing tissues.
skin uv and ir

Skin – UV and IR

  • Erythema – burnt skin
  • Accelerated ageing of the skin
  • Increased risk of skin cancer
  • Abnormal pigmentation
non beam hazards

Non-beam hazards

  • Electrical
  • Chemical, including fume production
  • Mechanical
  • Fire
  • X-rays and electromagnetic interference
  • Go to the webpage: A guide to Laser and Non-Beam Hazards (insert final link)
laser classes

Laser Classes

  • 7 class of laser based on power output and divergence properties.
  • In the UK the classes are Arabic numbers. USA and other countries use Roman numerals.
  • Go to the webpage: A guide to Laser and Non-Beam Hazards (insert final link)
laser warning labels

Laser warning labels

Aperture hazard warning label for class 3R, 3B and 4

Laser hazard warning label

laser safety controls

Laser Safety Controls

  • Depends on the class of laser used
  • Departmental local rules (3B and 4)
  • Risk assessment
  • Laser scheme of work (3R, 3B and 4)
  • Laser inventory
  • Authorised users
  • Departmental registration of users
  • Training
emergencies and non routine activities

Emergencies and non-routine activities

  • What are the local arrangements for equipment break down, planned maintenance of equipment, cleaning and set up/down of experiment.
  • Emergencies – what are the local arrangemetns for 1st aid, firesand accidents
  • Reporting incidents. Go to the HSAS incident website and complete a form.
emergencies and non routine activities1

Emergencies and non-routine activities

  • What are the local arrangements for equipment break down, planned maintenance of equipment, cleaning and set up/down of experiment.
  • Emergencies – what are the local arrangements for 1st aid, firesand accidents
  • Do you know how to report incidents? Go to the HSAS incident website and complete a form.
laser safety standard

Laser Safety Standard

  • Online – go an find it and find out what you need to do.
  • Standard covers how the University expects laser safety to be managed.
  • Control of Artificial Optical Radiation at Work Regulations and Management of Health and Saftey at Work Regulations.
assessment

Assessment

  • 18 questions multi-choice and true or false format
  • 30 minutes
  • 16 or more right is a PASS
  • GOOD LUCK.