ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.

A study has been undertaken of the rate of inactivation of spores of the ascomycete fungus Aspergillus niger when bombarded in vacuum, with homogeneous beams of cathode rays of energies from 4 to 15 electron kv. and current densities of 1 x 10(–7) to 3 x 10(–6) amperes per square cm. These velocitie...

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Detalles Bibliográficos
Autores principales: Whelden, Roy M., Buchwald, Charles E., Cooper, Franklin S., Haskins, Caryl P.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1940
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2237934/
https://www.ncbi.nlm.nih.gov/pubmed/19873162
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author Whelden, Roy M.
Buchwald, Charles E.
Cooper, Franklin S.
Haskins, Caryl P.
author_facet Whelden, Roy M.
Buchwald, Charles E.
Cooper, Franklin S.
Haskins, Caryl P.
author_sort Whelden, Roy M.
collection PubMed
description A study has been undertaken of the rate of inactivation of spores of the ascomycete fungus Aspergillus niger when bombarded in vacuum, with homogeneous beams of cathode rays of energies from 4 to 15 electron kv. and current densities of 1 x 10(–7) to 3 x 10(–6) amperes per square cm. These velocities and densities are in the range of those of showers of secondary electrons produced in biological materials irradiated with moderately soft x-rays, and so may be made to serve as quantitative indicators of the mechanics of x-ray action. Four qualitative effects are described.
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spelling pubmed-22379342008-04-23 ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV. Whelden, Roy M. Buchwald, Charles E. Cooper, Franklin S. Haskins, Caryl P. J Gen Physiol Article A study has been undertaken of the rate of inactivation of spores of the ascomycete fungus Aspergillus niger when bombarded in vacuum, with homogeneous beams of cathode rays of energies from 4 to 15 electron kv. and current densities of 1 x 10(–7) to 3 x 10(–6) amperes per square cm. These velocities and densities are in the range of those of showers of secondary electrons produced in biological materials irradiated with moderately soft x-rays, and so may be made to serve as quantitative indicators of the mechanics of x-ray action. Four qualitative effects are described. The Rockefeller University Press 1940-01-20 /pmc/articles/PMC2237934/ /pubmed/19873162 Text en Copyright © Copyright, 1940, The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Whelden, Roy M.
Buchwald, Charles E.
Cooper, Franklin S.
Haskins, Caryl P.
ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title_full ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title_fullStr ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title_full_unstemmed ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title_short ELECTRON BOMBARDMENT OF BIOLOGICAL MATERIALS : II. THE RATE OF DEATH OF FUNGUS SPORES BOMBARDED IN VACUUM WITH CATHODE RAY BEAMS FROM 4 KV.–15 KV.
title_sort electron bombardment of biological materials : ii. the rate of death of fungus spores bombarded in vacuum with cathode ray beams from 4 kv.–15 kv.
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2237934/
https://www.ncbi.nlm.nih.gov/pubmed/19873162
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