Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Physics
High Energy, Nuclear, Particle Physics
Source radioactivity estimate from a radiation detector
Reply to thread
Message
[QUOTE="artis, post: 6555069, member: 652341"] If I have a source of radioactivity that is concentrated instead of evenly spread out, like a "tablet" source instead of a evenly distributed aerosol/dust on ground for example then is it possible to even estimate the total number of disintegrations (Becquerels per second) by measuring the activity some distance away from the "tablet" point source? Or is this type of measurement mainly used for approximate personal dose estimate. Let's say I have a decent gain and sensitivity GM tube type detector some distance away from my point source. Let's say I don't know the type of isotope giving off the radiation , all I get are certain amount of "clicks" that represent the amount of radiation hitting my tube minus the ones that don't get counted due to the limited efficiency of the tube. So would I then knowing the efficiency of my detector could estimate the total radioactivity of the source by then measuring the distance from the source and using that distance as radius and then integrating over an imaginary sphere around the source where the distance from the source to my detector is the radius. I guess I would also need to know the size of my tube in order to know the size of the surface "patches" that I have to integrate over the sphere surface. Is this the only method to approximate the total count rate per second of the source in my described situation? Could I in any way also know the isotope I'm looking at solely based on this information (distance to source, integrated total surface activity) ? It seems I couldn't. [/QUOTE]
Insert quotes…
Post reply
Forums
Physics
High Energy, Nuclear, Particle Physics
Source radioactivity estimate from a radiation detector
Back
Top