Nuclear Start-Up & Fuel Scanner Sealed Radioactive Sources.


QSA Global, Inc. has over 40 years of experience developing and manufacturing premium-quality Californium-252 (Cf-252) neutron sources for Nuclear Start-Up Rod Assemblies (NSA), Primary Neutron Sources (PNS), and Fuel Scanning applications. We also manufacture Antimony Beryllium (SbBe) for NSAs as secondary neutron sources.

QSA Global, Inc. provides unparalleled technical expertise to ensure your sealed radioactive sources are designed to your unique requirements while being safe and reliable.

Isotope Type Activity Range
Cf-252 Neutron Source Up to 3 mg (1.6 Ci / 60 GBq)
Sb/Be Secondary Neutron Source N/A
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Experts in Custom Cf-252 Source Design


QSA Global, Inc. has a long history, spanning several decades, designing and manufacturing custom reactor Cf-252 neutron start-up and fuel scanner sources for many nuclear power plants and fuel manufacturers worldwide, including Westinghouse®, GE®, and Framatome®.

Our engineers collaborate with you on your isotopic and thermal requirements, provide technical guidance on capsule dimensions, interface, assembly, and handling features, and tailor your Cf-252 sources to your unique neutron output specifications and tolerances.

Custom Cf-252 source procurement for reactor start-up companies involves many steps and can span years. QSA Global, Inc. understands this journey well and can support you from the initial concepts through delivery and long after.

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Nuclear Neutron Source FAQs


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Our multi-disciplined technical experts are ready to develop the right Cf-252 sealed neutron source sealed radioactive sources and handling rods for your Nuclear Start-Up Rod (NSA) and Fuel Scanning applications. 

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Disposition Services.

Radioactive materials that are no longer required must be transferred to a licensed recipient for final disposition. QSA Global, Inc. can provide all the services needed for the disposition of Cf-252 scanner sources.

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Formerly known as Amersham Corporation and AEA Technology, QSA Global, Inc. is the original equipment manufacturer of Am-241, Am-241/Be, Cf-252, Cs-137, and Co-60 industrial sealed radioactive sources.