Current Laser Users (Sealed or Open)
For the protection of everyone using lasers, especially
unshielded lasers, the following web pages are to be read. When this has been
done, send an e-mail indicating that you have done this and have read the
tutorial referred to under “11.” below. Also have any students separately e-mail
me when they have done the tutorial. e-Mail:
sowaj@union.edu
- Start:
enter www.union.edu/safety in the web address
- Click Science Safety
- Click Laser Safety
then click Laser Safety Manual
- Click first bullet – classes of lasers – Note lasers were
reclassified about three years ago.
- Click next page and read the requirements which must be followed
for Laser Safety
- Enter the new web address - www.ehs.uiuc.edu
- Click training
- Click Radiation Safety Training
- Under Laser Safety click “on line tutorial”
- At the bottom of this page Click “proceed to the tutorial”
- Run through the power point presentation, reading the material in
the right hand window too.
When you have done this,
inform John R. Sowa, LSO at sowaj@union.edu that you have done this and
understand the material.
SOP
REQUIREMENT
A SOP must be posted in any room where a laser is
being used. If the following is appropriate it may be copied and
posted.
Standard
Operating Procedures of Laser
Users
- Anyone routinely using a laser, i.e., other than as an occasional visitor, must
have read the laser tutorial - presented in union.edu/safety - Science Safety – Laser Manual. If the individual(s) are just visiting, the principle investigator
must warn the visitor(s) about the hazards of a laser including health hazards
from exposure and electrical shock and how these might
occur.
- Whenever exposure to a laser is possible, individuals must protect their eyes by
wearing appropriate eyewear. If your laser is a sealed laser, protection or
proper precautions must be observed whenever the laser is on and is being
aligned or
repaired
- Every individual should be aware of high voltage electrical hazards. Turn off
the power if there is a possibility of an electrical
shock
- Solutions (dyes) which are used in the laser must be treated as hazardous waste
and disposed of
properly
- If your eyes are exposed to the laser or you suspect an exposure, report this
immediately to 388-6911 and have an eye exam done immediately at Ellis
Hospital or by a competent professional. Know the characteristics of the laser
you were using, like wavelength, power, continuous or pulsed the position of the
source relative to your eye when the exposure or suspected exposure was
received.
- Interlocks must be functional such that when a non-sealed laser is on, a visible “Laser Warning” light must be on. When the interlock light is out, the laser
must not be functional. The interlock must not be
disconnected
- Any laser light beam which could extend beyond the laser bench must be blocked
such that the light can not extend beyond the bench. The block must positioned
such that any individual is not able to put their head in line with the
light
- A laser beam can be reflected off of medium to highly reflective surfaces and
could cause eye
damage
- Be aware that a laser light which is not in the visible region is especially
dangerous and extra precautions should be taken to avoid any possibility of
exposure
- That light in the UV region can damage the surface of the eye and light in the
IR region can damage to the iris of the eye. Such damage might be
irreversible.
- Even laser pointers might damage vision when the eye is exposed for longer than
0.7 sec. If your visual reflect system is slowed by drugs or for some other
reason, you have an increased potential to receive eye damage from a laser
pointer
- Pulsed lasers can be especially harmful as the pupil of the eye might not close
and excessive quantities of energy could enter the eye.
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