Excerpts from the University of Pittsburgh proposal for the purchase of a three‐stage Van de Graaff accelerator

Physics Today ◽  
1963 ◽  
Vol 16 (6) ◽  
pp. 24-25
Keyword(s):  
University Of Pittsburgh ◽  
Graaff Accelerator ◽  
Van De Graaff ◽  
The University

scholarly journals Radiometric Dating with the University of Washington Tandem Van De Graaff Accelerator

Radiocarbon ◽  
1980 ◽  
Vol 22 (3) ◽  
pp. 838-849 ◽  
Author(s):  
G W Farwell ◽  
T P Schaad ◽  
F H Schmidt ◽  
M-Y B Tsang ◽  
P M Grootes ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Radiometric Dating ◽  
Isotopic Ratios ◽  
Isotopic Abundance ◽  
University Of Washington ◽  
Joint Project ◽  
Graaff Accelerator ◽  
Technical Developments ◽  
Van De Graaff ◽  
The University

The University of Washington Model FN tandem Van de Graaff accelerator is being used for the measurement of extremely small isotopic abundance ratios, notably 14C/12C and 10Be/9Be, in a joint project of the Nuclear Physics Laboratory (NPL) and the Quaternary Isotope Laboratory (QL). The experimental arrangements and technical developments are described, and some preliminary results on isotopic ratios in carbon and beryllium are presented.

The lamb shift polarized ion source at the FN tandem Van de Graaff accelerator of the university of cologne

1978 ◽  
Vol 150 (3) ◽  
pp. 407-416 ◽  
Author(s):  
V. Bechtold ◽  
L. Friedrich ◽  
P. Ziegler ◽  
R. Aniol ◽  
G. Latzel ◽  
...  
Keyword(s):  
Lamb Shift ◽  
Ion Source ◽  
Graaff Accelerator ◽  
Van De Graaff ◽  
The University

scholarly journals Radiocarbon Dating with Tandem Electrostatic Accelerators

Radiocarbon ◽  
1980 ◽  
Vol 22 (3) ◽  
pp. 785-793 ◽  
Author(s):  
H E Gove ◽  
David Elmore ◽  
R D Ferraro ◽  
R P Beukens ◽  
K H Chang ◽  
...  
Keyword(s):  
Radiocarbon Dating ◽  
Sample Sizes ◽  
Graaff Accelerator ◽  
Carbon Sample ◽  
Van De Graaff ◽  
The University ◽  
Woolly Mammoth

An MP tandem Van de Graaff accelerator at the University of Rochester has been employed since May 1977 to detect 14C in various terrestrial samples. The carbon sample sizes required are 1mg or less. Dating accuracies based on reproducibility now approach (± 80 years). Measurements have been made on 1850 wood, Australian sucrose, a carbon sample from Mt Shasta, a baby woolly mammoth, and an Egyptian bull mummy wrapping.

Specimen Preparation of Near Surface Ion Irradiated Samples

1985 ◽  
Vol 43 ◽  
pp. 170-171
Author(s):  
K. F. Russell ◽  
L. L. Horton
Keyword(s):  
Radiation Damage ◽  
Heavy Ions ◽  
Target Material ◽  
Metal Alloys ◽  
Specimen Surface ◽  
Specimen Preparation ◽  
Particle Accelerators ◽  
Near Surface ◽  
Graaff Accelerator ◽  
Van De Graaff

Beams of heavy ions from particle accelerators are used to produce radiation damage in metal alloys. The damaged layer extends several microns below the surface of the specimen with the maximum damage and depth dependent upon the energy of the ions, type of ions, and target material. Using 4 MeV heavy ions from a Van de Graaff accelerator causes peak damage approximately 1 μm below the specimen surface. To study this area, it is necessary to remove a thickness of approximately 1 μm of damaged metal from the surface (referred to as “sectioning“) and to electropolish this region to electron transparency from the unirradiated surface (referred to as “backthinning“). We have developed electropolishing techniques to obtain electron transparent regions at any depth below the surface of a standard TEM disk. These techniques may be applied wherever TEM information is needed at a specific subsurface position.

The Center for International Biomedical Communications Research

1966 ◽  
Vol 05 (03) ◽  
pp. 142-146
Author(s):  
A. Kent ◽  
P. J. Vinken
Keyword(s):  
Information Needs ◽  
English Language ◽  
Medical Information ◽  
Biomedical Literature ◽  
Information Storage ◽  
Control Mechanisms ◽  
University Of Pittsburgh ◽  
The World ◽  
The University ◽  
Excerpta Medica Foundation

A joint center has been established by the University of Pittsburgh and the Excerpta Medica Foundation. The basic objective of the Center is to seek ways in which the health sciences community may achieve increasingly convenient and economical access to scientific findings. The research center will make use of facilities and resources of both participating institutions. Cooperating from the University of Pittsburgh will be the School of Medicine, the Computation and Data Processing Center, and the Knowledge Availability Systems (KAS) Center. The KAS Center is an interdisciplinary organization engaging in research, operations, and teaching in the information sciences.Excerpta Medica Foundation, which is the largest international medical abstracting service in the world, with offices in Amsterdam, New York, London, Milan, Tokyo and Buenos Aires, will draw on its permanent medical staff of 54 specialists in charge of the 35 abstracting journals and other reference works prepared and published by the Foundation, the 700 eminent clinicians and researchers represented on its International Editorial Boards, and the 6,000 physicians who participate in its abstracting programs throughout the world. Excerpta Medica will also make available to the Center its long experience in the field, as well as its extensive resources of medical information accumulated during the Foundation’s twenty years of existence. These consist of over 1,300,000 English-language _abstract of the world’s biomedical literature, indexes to its abstracting journals, and the microfilm library in which complete original texts of all the 3,000 primary biomedical journals, monitored by Excerpta Medica in Amsterdam are stored since 1960.The objectives of the program of the combined Center include: (1) establishing a firm base of user relevance data; (2) developing improved vocabulary control mechanisms; (3) developing means of determining confidence limits of vocabulary control mechanisms in terms of user relevance data; 4. developing and field testing of new or improved media for providing medical literature to users; 5. developing methods for determining the relationship between learning and relevance in medical information storage and retrieval systems’; and (6) exploring automatic methods for retrospective searching of the specialized indexes of Excerpta Medica.The priority projects to be undertaken by the Center are (1) the investigation of the information needs of medical scientists, and (2) the development of a highly detailed Master List of Biomedical Indexing Terms. Excerpta Medica has already been at work on the latter project for several years.

Thyrsa Wealtheow Amos: The Dean of Deans

NASPA Journal ◽  
2004 ◽  
Vol 41 (2) ◽  
Author(s):  
Richard J. Herdlein
Keyword(s):  
Higher Education ◽  
Student Affairs ◽  
Historical Research ◽  
University Of Pittsburgh ◽  
Student Personnel ◽  
Dean Of Women ◽  
History Of ◽  
Personnel Administration ◽  
The University

The scholarship of student affairs has neglected to carefully review its contextual past and, in the process, failed to fully integrate historical research into practice. The story of Thyrsa Wealtheow Amos and the history of the Dean of Women’s Program at the University of Pittsburgh,1919–41, helps us to reflect on the true reality of our work in higher education. Although seemingly a time in the distant past, Thyrsa Amos embodied the spirit of student personnel administration that shines ever so bright to thisd ay. The purpose of this research is to provide some of thatcontext and remind us of the values that serve as foundations of the profession.

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