विधियों की तुलना करें

	विकिरण परिरक्षण डिज़ाइन	क्रिटिकैलिटी सुरक्षा विश्लेषण
क्षेत्र	नाभिकीय भौतिकी	नाभिकीय भौतिकी
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1898	1938
प्रवर्तक	Ernest Rutherford, Pierre Curie	Otto Hahn, Fritz Strassmann
प्रकार	engineering design methodology	safety assessment methodology
मौलिक स्रोत	Cember, H., & Johnson, T. E. (2009). Introduction to Health Physics (4th ed.). McGraw-Hill.	American National Standards Institute (2019). Nuclear Criticality Safety in Operations with Fissionable Material Outside Reactors. ANSI/ANS-8.1-19.40.
उपनाम	shield analysis, attenuation design, dose reduction engineering	nuclear safety assessment, chain reaction analysis, fissile material control
संबंधित	5	5
सारांश	Radiation shielding design is an engineering discipline that uses physics-based calculations and materials selection to reduce radiation exposure to acceptable levels, originating from Curie and Rutherford's early radiation studies in the 1890s. By combining attenuation theory, source characterization, and dose modeling, it determines material composition, thickness, and geometry to protect workers, the public, and sensitive equipment.	Criticality safety analysis is a systematic evaluation of fissile material systems to ensure nuclear chain reactions remain controlled, originating from Hahn and Strassmann's 1938 discovery of nuclear fission. It determines safe limits on fissile mass, concentration, geometry, and spacing using neutron transport calculations and experimental validation to prevent uncontrolled nuclear excursions in storage, processing, and transportation.