Background radiation on Earth quantified?

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Discussion Overview

The discussion centers around the quantification of background radiation on Earth's surface, including cosmic, solar, natural, and manmade sources. Participants seek specific information regarding flux rates and energy levels rather than dose rates.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • A new user requests information on typical background radiation, specifically looking for flux rates and energy data.
  • Dr. Gregory Greenman provides links to resources that offer breakdowns of natural sources but notes that they primarily present dose information.
  • The original poster expresses that the provided resources do not meet their needs for flux rates and energies, indicating a desire for more specific data.
  • Dr. Greenman suggests additional resources from the Pierre Auger Observatory and NASA's Goddard Space Flight Center that may contain relevant information.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as the original request for specific flux rates and energy information remains unfulfilled, and the discussion reflects ongoing uncertainty about available resources.

Contextual Notes

The discussion highlights limitations in the provided resources, particularly their focus on dose rates rather than the requested flux rates and energy levels.

Causality
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Hello all, a new user here. I am in need of some very basic information that seems to be impossible to find. I need to know the typical background radiation on the Earth's surface (cosmic, solar, natural, manmade), particularly flux rates and energy. The closest I have come is a flux rate for neutrons with no energy information given, and also dose rates which I do not need.

If anyone can provide a link or point me to a text with this information, that would be great! :biggrin:
 
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Causality said:
Hello all, a new user here. I am in need of some very basic information that seems to be impossible to find. I need to know the typical background radiation on the Earth's surface (cosmic, solar, natural, manmade), particularly flux rates and energy. The closest I have come is a flux rate for neutrons with no energy information given, and also dose rates which I do not need.

If anyone can provide a link or point me to a text with this information, that would be great! :biggrin:

Causality,

How about:

http://www.umich.edu/~radinfo/introduction/radrus.htm

and

http://www.umich.edu/~radinfo/introduction/


The Health Physics Society may help get you started.

Dr. Gregory Greenman
Physicist
 
Last edited by a moderator:
Thank you for the links Dr. Greenman, they do give a very good breakdown of natural sources. However they only provide doses, whereas I am looking for actual flux rates (#particles s^-1 cm^-2) and energies. They do look like a good contact though and I will see if they can help me out!
 
Causality said:
Thank you for the links Dr. Greenman, they do give a very good breakdown of natural sources. However they only provide doses, whereas I am looking for actual flux rates (#particles s^-1 cm^-2) and energies. They do look like a good contact though and I will see if they can help me out!

Causality,

How about from the Pierre Auger Observatory:

http://www.auger.org/questions.html#how_many

or courtesy of NASA's Goddard Space Flight Center:

http://imagine.gsfc.nasa.gov/docs/features/topics/snr_group/cosmic_rays.html


http://imagine.gsfc.nasa.gov/docs/features/topics/snr_group/cr-knee.html

Dr. Gregory Greenman
Physicist
 
Last edited by a moderator:

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