More like Cobalt-60 extract: http://www-naweb.iaea.org/napc/iachem/Brochure%20on%20gamma%20irradiators.pdf http://www-naweb.iaea.org/napc/iachem/Brochure%20on%

More like Cobalt-60 extract: http://www-naweb.iaea.org/napc/iachem/Brochure%20on%20gamma%20irradiators.pdf http://www-naweb.iaea.org/napc/iachem/Brochure%20on%20gamma%...