Theoretical Nuclear Physics, Nuclear Structure PDF Download
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Author: Amos de-Shalit
Publisher: Wiley-VCH
ISBN:
Category : Business & Economics
Languages : en
Pages : 1018
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Author: Amos de-Shalit
Publisher: Wiley-VCH
ISBN:
Category : Business & Economics
Languages : en
Pages : 1018
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 394
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Author:
Publisher:
ISBN:
Category : Cartography
Languages : en
Pages : 84
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Author:
Publisher:
ISBN:
Category : Radar in earth sciences
Languages : en
Pages : 8
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Book Description
Author: C. E. Falk
Publisher:
ISBN:
Category : Deuterons
Languages : en
Pages : 288
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Author: Stewart Whittlestone
Publisher:
ISBN: 9780642997647
Category : Beryllium
Languages : en
Pages : 5
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Book Description
Author: William J. Knox
Publisher:
ISBN:
Category : Bismuth
Languages : en
Pages : 30
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Book Description
Relative neutron yields in the forward direction from various target elements bombarded with 350 Mev protons and 190 Mev deuterons have been measured. Bismuth fission chambers with a threshold of about 50 Mev were used to detect the high energy neutrons. The actual flux of protons or deuterons traversing each target was determined from the activities induced in graphite monitors attached to the target. When a deuteron beam is used, the neutron yields for light elements agree with the values predicted by the deuteron stripping theory. For the heavy elements the observed values are fitted best by adding a function proportional to Z-sq to the stripping theory values. This may be interpreted as evidence for the production of high energy neutrons by the electric field disintegration of the deuteron. The neutron yields from the proton beam vary approximately as (A - Z)(exp(2/3)) for target elements from C to U. This indicates that the heavy elements are not completely transparent to 350 Mev protons. Beryllium has an anomalous neutron yield 50% higher than that for C. Calculations and measurements on the problem of multiple traversals of beam particles through thin targets are presented.
Author: A. C. Helmholz
Publisher:
ISBN:
Category : Angular distribution (Nuclear physics).
Languages : en
Pages : 14
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Author: Jerry B. Marion
Publisher:
ISBN:
Category : Neutron beams
Languages : en
Pages : 96
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Book Description
The report is concerned with an analysis of the problems involved in the design and slection of equipment for the production of intense beams of 14-MeV neutrons. Since the aim is to achieve total neutron yields in excess of 10 to the 13th power/sec, a figure which considerably surpasses that commonly encountered with currently operating accelerators, it is necessary to extrapolate present performance to a considerable degree. Low-voltage accelerators in operation at the present time rarely produce DC beam currents in excess of 1 mA; currents of 600 micro amps. are considered 'high'. The production of neutron yields of 10 to the 13th power/sec will require beam currents greater than 10 mA. This is a significant increase and gives rise to problems of ion source design, source cooling, beam optics, target preparation, mechanical target des/gn, etc. These problems are analyzed individually and certain conclusions are reached and recommendations are made. (Author).
Author: A. I. M. Ritchie
Publisher:
ISBN: 9780642996909
Category : Lithium
Languages : en
Pages : 8
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