TALSO had another great
meeting Thursday, November 14 at GlaxoSmithKline in
RTP. Thanks again to Alvin Blount and GSK for hosting this event.
Here's a meeting summary:
I. Reviewed notes from Sep. 19 Meeting
- no changes/corrections
II. Review status of Action Items from Last
Meeting:
- Several actions related to beam alignment
project; see item IV below
- Beasley provide URL for CORD site: DONE
- Edwards ask NCHPS to post TALSO page on nchps site: DONE; DRAFT site posted (see TALSO link bottom
left on www.nchps.org)
ACTION: Hitchcock e-mail Edwards with URL of
Army site, for posting
ACTION: Edwards post AIHA URL
ACTION: All e-mail Buschow
[rbuschow@wpo.nccu.edu] with suggestions for TALSO bibliography for web
site (e.g. Sliney & Wolbarsht.
Safety with lasers and other optical sources.
- Edwards to bring copies of August '02
Operational Radiation Safety article on LS: DONE & distributed at meeting
IV. Safe Beam Alignment Project
A. Action Items from previous meeting:
- Kretchman purchase
Rockwell "safe laser alignment" book: DONE. Ken reviewed the
alignment safety guidance contained therein and shared several other pertinent
documents.
- Beasley review his
library at CCCC for any video tapes or other training material on alignment.
DONE; Kretchman reviewed IMC training video
- All seek out any manufacturer's alignment
procedures that may be lying around your facility
- Edwards contact BALSO representatives for alignment
advice & information, etc. DONE & forwarded to Kretchman
B. Next steps
Proposal: put alignment safety guidance into a
decision tree (e.g. like NIOSH respiratory selection guidance:
http://www.cdc.gov/niosh/87-116.html)
RESOLVED: focus current effort on table top
alignment techniques
Idea: get our laser using allies to critique
rough outline
ACTION: Kretchman
distribute draft questionnaire for group review
ACTION: Kretchman,
Edwards & Hitchcock meet off line to discuss more focused effort
ACTION: Nguyen obtain copies of Simon's
alignment SOPs.
V. Discussion Topic: Common excuses for not
complying with LS policy/practice (and how to overcome them)
- Edwards shared old Rockwell "It's a Safe
Thing to Say" article entitled "Doorway interlocks revisited"
with 4 excuses & rebuttals
- "Expert" users; Kretchman
shared anecdote on one expert's epiphany (after an accident) on the need for
control measures
- "Because we've always done it this
way": noted OSHA literature indicating that the unsafe behavior involved
in most incidents had persisted for some time before the actual incident
occurred
- "Because cutting power will damage
the laser tube": Is the laser on a UPS? If not, it's clearly
susceptible to power outages anyway. Also, what does the laser
manufacturer say?
- "I need to see the beam": review
safe viewing methods
- "The sales rep said I didn't need
protective eyewear": ask the sales rep to put it in writing
- "Don't need specification eyewear for
CO2 beams": any polycarbonate will do: While technically correct, the fact
remains that in case of an incident, your institution will be viewed as
negligent if spec eyewear was not provided, regardless of other considerations.
VI. Any other business
- Brief review of highlights from LIA laser
safety course from recent grad Giao Nguyen: postponed
until next meeting
- Request from LIA: Conduct a CLSO exam in our
area?
Noted ~3 folks [Blount, Nguyen, Thai] within
TALSO interested in taking CLSO locally (Hitchcock to sit for exam at ILSC
meeting); also Beasley's CCCC students.
ACTION: Beasley contact Rich Greene to
investigate holding CLSO exam at CCCC in March
VII. Schedule next meeting:
List of specific discussion topics for upcoming
meetings:
- Medical Surveillance (why, whom & how
much?)
- Entry way controls for class 4 systems
- Tracking high power diode lasers
- Appropriate fire-proof materials
- Handling multiple wavelength lasers (e.g. Ti:Sapphire)
- Release of class 3b & 4 lasers into surplus
& unrestricted use
- Generate list of low-cost solutions to laser
safety challenges & "low hanging fruit" that get the most impact
for the least resource expended in laser safety programs
Thank you again for your interest.
Ben Edwards, MS, CLSO
Health Physicist
Duke University/Medical Center
668-3157