×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Smoke Detectors in Radioactive Environment

Smoke Detectors in Radioactive Environment

Smoke Detectors in Radioactive Environment

(OP)
I have a question that I am not sure where to ask, but let's start here.  We are designing a high radiation "hot cell".  It is required for us to have fire protection in the cell.  I am wondering how a photoelectric smoke device would function when exposed to an average of 100R per hour.
Sorry if this is the wrong place to ask.

The principles of photoelectric is that silicon diodes are used to create a light beam that any smoke will block.

RE: Smoke Detectors in Radioactive Environment

Not a good idea. Any plastic components will degrade if placed in the high rad field. You also have problems of replacing it. However, you presumably have a vent plant attached so you could mount it in the downstream ducting, away from the radiation. Another trick is to draw a sample of air from the cell into a detector, routing it back into the cell.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources