Study of a Halpern-Type 4Ï Neutron Detector (Classic Reprint)

H. M. Gerstenberg, E. G. Fuller

ISBN 10: 1528024591 / ISBN 13: 9781528024594

Editore: Forgotten Books, 2024

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Print on Demand. This book fastidiously examines photoneutron cross-sections, a critical element in discerning photonuclear interactions. These interactions, where photons excite atomic nuclei and induce neutron emission, have been methodically studied by the author due to their significant role in understanding nuclear reactions. By employing an experimental setup comprising a 2-inch diameter BF3 proportional counter situated within a Halpern-type geometry, the responses of various neutron spectra to moderator thickness were empirically scrutinized. This approach yielded an unprecedented detector efficiency, independent of neutron energy and applicable to an extensive range of photoneutron sources. Ultimately, this research establishes an invaluable tool for accurately measuring photoneutron cross-sections, paving the way for more precise investigations into nuclear interactions and their applications. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book.

Codice articolo 9781528024594_0

Dati bibliografici

• Titolo: Study of a Halpern-Type 4Ï Neutron Detector (Classic Reprint)
• Editore: Forgotten Books
• Data di pubblicazione: 2024
• Lingua: Inglese
• ISBN 10: 1528024591
• ISBN 13: 9781528024594
• Rilegatura: Paperback
• Condizione: New
• Tipo di libro: print-on-demand item
• Cataloghi dei venditori:
  • Electronics

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Riassunto

Excerpt from Study of a Halpern-Type 4π Neutron Detector

The study of photonuclear interactions by measurements of photoneutron cross sections has been very fruitful. This is primarily because the photoneutron cross section represents a large percentage of the total absorption cross section; the percentage ranges from about 50% for the light elements to about 90% for the heavier elements such as lead. Of almost equal importance, however, is the fact that neutrons weakly interact with matter. This allows the use of thick targets and compensates for the relatively low photon yield available from accelerators such as the betatron.

Unfortunately, the magnitude of the photoneutron cross sections, as measured in different laboratories, show differences of as much as The problem may be due, in part at least, to the detectors used to measure the photoneutron yields. The most commonly used system is a relatively simple 4h neutron detector which moderates and then captures the neutrons emitted from the target. It is possible that variations in the designs of these detectors resulting in non-uniform responses as a function of neutron energy may have caused the discrepancies in the measured neutron cross sections.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.