PDA

View Full Version : Cosmic ray fluxes?


Urvabara
Feb1-07, 06:59 AM
Hi!

I know these cosmic ray flux rates on Earth:
10^{16} eV: the arrival rate is one particle per square meter per year.
10^{19} eV: the arrival rate is one particle per square kilometer per year.
10^{20} eV: the arrival rate is one particle per square kilometer per century.

What are the flux rates of
a) 10^{17} eV showers?
b) 10^{18} eV showers?
a) 10^{21} eV showers?

Thank you!

Urvabara
Feb5-07, 12:34 PM
Hello! Anyone out there?

Norman
Feb6-07, 09:25 AM
Look up the review article by Simpson entitled "Elemental and Isotopic Composition of Galactic Cosmic Rays" Ann. Rev. Nucl. Part. Sci. 1983, 33 (323-81)

or the book by TK Gaisser "Cosmic Rays and Particle Physics."

I just don't have time to search through them and convert them to the units you are interested in.

Urvabara
Feb6-07, 12:14 PM
Ok. Thanks!

Urvabara
Feb6-07, 02:41 PM
Can someone send me this (http://arjournals.annualreviews.org/doi/pdf/10.1146/annurev.ns.33.120183.001543)? I do not have access, although I use the Jyväskylä University internet connection.

My email address is henri(dot)heinonen(at)mbnet(dot)fi.

Norman
Feb6-07, 04:35 PM
Your library has a copy of the journal. (you can find it here:Annual Review of Nuclear and Particle Science (https://jykdok.linneanet.fi/cgi-bin/Pwebrecon.cgi?v1=1&ti=1,1&LANGUAGE=English&Search%5FArg=Annual%20review%20of%20nuclear%20and% 20particle%20science&Search%5FCode=JALL&CNT=25&PID=5460&SEQ=20070207003205&SID=1)) I don't speak whatever language that is (Finnish?) but that is the correct journal as far as I can tell.

Go to library and ask for the correct volume and they will find it for you I am sure. Your library probably doesn't have a electronic subscription.

(Note: In general it is not a good idea to ask people to send you copyrighted material over the internet.)

Urvabara
Feb7-07, 12:49 AM
Yes, that is Finnish.

Ok. Thanks!