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Inokuti, M.
Argonne National Laboratory (United States). Physics Div. Funding organisation: USDOE Office of Science (United States)2005
Argonne National Laboratory (United States). Physics Div. Funding organisation: USDOE Office of Science (United States)2005
AbstractAbstract
[en] Most of my professional efforts over nearly five decades have been devoted to radiation research, that is, studies of the physical, chemical, and biological actions of high-energy radiation on matter. (By the term 'high-energy radiation' I mean here x rays, .GAMMA. rays, neutrons, and charged particles of high enough energies to produce ionization in matter. I exclude visible light, infrared waves, microwaves, and sound waves.) Charms of radiation research lie in its interdisciplinary character; although my training was in basic physics, the scope of my interest has gradually increased to cover many other areas, to my deep satisfaction. High-energy radiation is an important component of the universe, and of our environment. It often provides an effective avenue for characterizing matter and understanding its behavior. Near Earth's surface this radiation is normally present in exceptionally low quantity, and yet it plays a significant role in some atmospheric phenomena such as auroras, and also in the evolution of life. The recent advent of various devices for producing high-energy radiation has opened up the possibility of many applications, including medical and industrial uses. I have worked on some aspects of those uses. At every opportunity to address a broad audience I try to convey a sense of intellectual fun, together with some of the elements of the basic science involved. A goal of radiation education might be to make the word 'radiation' as common and familiar as words such as 'fire' and 'electricity' through increased usage
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1 Jan 2005; 17 p; 3. International Symposium on Radiation Education; Nagasaki (Japan); 22-26 Aug 2004; AC02-06CH11357; Available from Proc., pp. 250-266; Argonne National Laboratory, Argonne, IL (US)
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Inokuti, M.
Radiological and Environmental Research Division. Annual report, October 1976--September 19771977
Radiological and Environmental Research Division. Annual report, October 1976--September 19771977
AbstractAbstract
[en] The logarithmic mean excitation energies, which determine the total inelastic-scattering cross section, the stopping power, the straggling for fast charged particles, and other atomic or molecular properties, are bound from above and below by moments of the oscillator-strength distribution
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Rowland, R.E.; Argonne National Lab., IL (USA); p. 176-178; 1977; p. 176-178
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Progress Report
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Inokuti, M.
Radiological and Environmental Research Division annual report: fundamental molecular physics and chemistry, October 1977-September 19781978
Radiological and Environmental Research Division annual report: fundamental molecular physics and chemistry, October 1977-September 19781978
AbstractAbstract
[en] The standard Fowler equation concerns the mean yield of an initial species such as ions resulting from complete slowing-down of an electron of a given kinetic energy in a pure medium. Similar equations for two other cases are presented. The first applies to the proton incidence in a pure medium and the second to the electron incidence in a binary mixture. 7 references
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Argonne National Lab., IL (USA); p. 155-162; 1978; p. 155-162
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Inokuti, M.
Argonne National Lab., IL (USA)1982
Argonne National Lab., IL (USA)1982
AbstractAbstract
[en] The general purpose of our work is to provide atomic and molecular collision cross sections useful for radiological physics, dosimetry, and other applications. Studies on the systematics of atomic oscillator-strength spectra and a survey of stopping power data are briefly described
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1982; 8 p; 15. annual radiological physics contractors meeting; Gettysburg, PA (USA); 4-6 May 1982; Available from NTIS, PC A02/MF A01 as DE83009566
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Inokuti, M.
Argonne National Lab., IL (United States). Funding organisation: US Department of Energy (United States)2000
Argonne National Lab., IL (United States). Funding organisation: US Department of Energy (United States)2000
AbstractAbstract
[en] One of the founders of radiation physics and chemistry, Platzman (1918--73) taught us elements of our current understanding such as the hydrated electron, the basic theory of the yield of ions and other initial product species, and the importance of the oscillator-strength spectrum. In addition to all this seen in the literature, he left many unpublished materials, some of which contain stimulating thoughts and valuable ideas for experimental and theoretical work in the twenty-first century
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28 Jun 2000; 18 p; International Symposium on Prospects for Application of Radiation Towards the 21st Century; Tokyo (Japan); 13-17 Mar 2000; W-31109-ENG-38; Also available from OSTI as DE00757521; PURL: https://www.osti.gov/servlets/purl/757521-YcIuQS/webviewable/
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Inokuti, M.
Argonne National Lab., Ill. (USA)1975
Argonne National Lab., Ill. (USA)1975
AbstractAbstract
[en] Electron-correlation effects manifest themselves in diverse facets of electron collisions with an atom or molecule. A fast incident electron acts largely as an external agent, and its inelastic collisions probe the structure, including correlations within the target (in both the initial state and the final state), nearly in the same way as photoionization processes do. In inelastic collisions of a slow electron, the central object of study is the correlated motion of the incident electron and an electron excited out of the target core. This elementary observation is illustrated in the lecture by many examples and is elaborated by remarks on some current theoretical methods
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1975; 21 p; Conference on photoionization and other probes of many-electron interactions; Carry-le-Rouet, France; 31 Aug 1975; Available from NTIS; Available from NTIS.
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Inokuti, M.
Radiological and Environmental Research Division annual report. Fundamental molecular physics and chemistry, June 1975--September 19761976
Radiological and Environmental Research Division annual report. Fundamental molecular physics and chemistry, June 1975--September 19761976
AbstractAbstract
[en] General principles governing elastic and inelastic collisions between particles with electronic structure are presented. The treatment presumes relative translational velocities far exceeding the mean orbital velocity of electrons in either of the colliding particles, and closely follows the Bethe theory for the collisions of a structureless particle with an atom or molecule. For illustration, numerical results are given for collisions between two hydrogen-like ions
Original Title
Elastic and inelastic collisions
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Argonne National Lab., Ill. (USA); p. 177-198; 1976; p. 177-198
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Progress Report
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Inokuti, M.
Argonne National Lab., IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
Argonne National Lab., IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
AbstractAbstract
[en] It is important to view track structure analysis as an application of a branch of theoretical physics (i.e., statistical physics and physical kinetics in the language of the Landau school). Monte Carlo methods and transport equation methods represent two major approaches. In either approach, it is of paramount importance to use as input the cross section data that best represent the elementary microscopic processes. Transport analysis based on unrealistic input data must be viewed with caution, because results can be misleading. Work toward establishing the cross section data, which demands a wide scope of knowledge and expertise, is being carried out through extensive international collaborations. In track structure analysis for radiation biology, the need for cross sections for the interactions of electrons with DNA and neighboring protein molecules seems to be especially urgent. Finally, it is important to interpret results of Monte Carlo calculations fully and adequately. To this end, workers should document input data as thoroughly as possible and report their results in detail in many ways. Workers in analytic transport theory are then likely to contribute to the interpretation of the results
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1993; 10 p; DOE workshop on computational approaches in molecular radiation biology: Monte Carlo methods; Irvine, CA (United States); 26-29 Apr 1993; CONF-9304185--1; CONTRACT W-31109-ENG-38; Available from OSTI as DE93018571; NTIS; INIS; US Govt. Printing Office Dep
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AbstractAbstract
[en] Consider the intensity of absorption of a photon (i.e., the photoabsorption cross section) as a function of photon energy E. Apart from some intensity related to pure nuclear motion and spins, the (electronic) absorption begins at several eV (i.e., in the visible region or the near ultraviolet region). It becomes stronger at tens of eV's (i.e., in the far ultraviolet), and gradually diminishes at higher E. However, the intensity enhances again as E becomes comparable to an inner-shell binding energy. This repeats throughout the x-ray region until E greatly exceeds the K-shell binding energy. I shall discuss the gross variation of the absorption intensity with E. This intensity, suitably normalized, is the oscillator-strength distribution df/dE
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1984; 39 p; Available from NTIS, PC A03/MF A01; 1 as DE84017488
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Inokuti, M.
Argonne National Lab., IL (USA)1984
Argonne National Lab., IL (USA)1984
AbstractAbstract
[en] Topics include problems of radiation physics, stopping power, and mean energy for an ion pair or the W value for a gas. 31 figures are included
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1984; 35 p; Available from NTIS, PC A03/MF A01; 1 as DE84017489
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