Radioisotopes A leader in isotope production for decades, NRD offers sealed radioactive sources in many sizes and activities. We offer both standard and custom sources to fit your specific application and activity requirement. NRD also offers a comprehensive repair and replacement service for Electron Capture Detector source materials where we are able to service, test, clean, repair and/or replace foils made of nickel sources. Contact us for more information about americium-241, nickel-63 and polonium-210.
