neutron source


by Stephan_doc
Tags: neutron, source
Stephan_doc
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#1
Feb7-13, 01:00 PM
P: 28
Greetings to all,
I know activity for a Am-Be neutron source. I want to compute strenght source in neutrons/s. Yours advices are welcome. Thank you!
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Astronuc
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Feb9-13, 06:18 AM
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Quote Quote by Stephan_doc View Post
Greetings to all,
I know activity for a Am-Be neutron source. I want to compute strenght source in neutrons/s. Yours advices are welcome. Thank you!
One could take the α decay rate of Am-241, and with knowledge of the macroscopic cross-section, including reaction efficiency, determine the n source term.

Alternatively, Amersham produces an Am-Be source of ~ 2.2 x 106 n/sec per Ci. This is the approximate value at manufacture, so one has to correct for Am-241 decay. One would have to know the Ci of Am of the original source, or the date of manufacture.
Stephan_doc
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#3
Feb28-13, 02:15 PM
P: 28
Thank you for answer, finally i found the solution. For example Po-210/Be neutrons-source has a yield of 70 neutrons/1milion alpha particles.

terryphi
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#4
Mar19-13, 10:54 PM
P: 53

neutron source


You need a conversion factor. Look at

Bernard Shlein, L. A. (1998). Handbook of Health Physics and Radiological Health Third Edition. Baltimore: Lippincott Williams and Wilkins.

Quote Quote by Stephan_doc View Post
Greetings to all,
I know activity for a Am-Be neutron source. I want to compute strenght source in neutrons/s. Yours advices are welcome. Thank you!


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