Design Services

John Parfitt Nuclear Consultancy ltd.

Engineering with Isotopes

Independent specialist in radioactive sealed source design, manufacture and applications. Quality assurance expert in radioactive material manufacture and processing

Design of sealed radioactive sources and devices for most applications from smoke detectors through radiotherapy to oil well logging.

  • Thin window beta sources for gauging: Sr-90, Kr-85, Pm-147.
  • Industrial and experimental irradiator sources: Co-60.
  • Gamma sources for gauging: Am-241, Cs-137, Co-60.
  • Neutron Sources for activation analysis, gauging: Am-241:Be, Cf-252.
  • Medical therapy sources: Cs-137, Co-60.
  • Reactor start-up.

Source and Device safety analysis for conformance with ISO2919 and ANSI/HPS N43.6.

Preparation of sealed source and device registration (SSDR) submissions.

Preparation of sealed source special form design reviews to IAEA SSR-6 requirements.

Experts in low volume autogenous TIG welding and gas leak testing. by helium mass spectrometry.