Transcription of Neutron Interactions with Matter
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12. Neutron Interactions with Matter P. Rinard introduction . How neutrons interact with Matter aflkcts the ways in which assays can be pdormed with neutrqs. Neutron Interactions with the assay material affkct the interpretation of Neutron measurements and limit the amount of fissile material the assay instrument can contain safely. A Neutron detector is based on some Neutron interaction with the material in the detector. Also, Neutron Interactions with shielding materials are necessary to protect radiation workeri. This chapter provides iimdamenial information about Neutron Interactions that are important to nuclear material measurements; The that section describes the Interactions on the microscopic level where individ@ neutrons, interact with other particles and nuclei. The concepts are then extended to macroscopic Interactions with bulk com- pound materials. !, MICROSCOPIC Interactions . The Cross-Section Concept The probability of a particular event occurring between a Neutron and a nucleus is expressed through the concept of the cross section.
Neutron Interactions with Matter . P. Rinard . 12.1. INTRODUCTION . How neutrons interact with matter aflkcts the ways in which assays can be pdormed with neutrqs. Neutron interactions with the assay material affkct the interpretation of neutron measurements and limit the amount of fissile material the assay instrument can contain safely.
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