A proton accelerator in Trondheim in the 1930s

2004 ◽  
Vol 35 (1) ◽  
pp. 115-152 ◽  
Author(s):  
ROLAND WITTJE
Keyword(s):  
Particle Accelerator ◽  
Proton Accelerator ◽  
Nuclear Disintegration ◽  
Small Machine ◽  
Research Activities ◽  
Electrical Engineers ◽  
Van De Graaff ◽  
Institute Of Technology ◽  
Small Department ◽  
Tesla Coil

ABSTRACT: Johan Holtsmark at the Norwegian Institute of Technology (N.T.H.) in Trondheim, Norway, built a Van de Graaff generator for nuclear disintegration between 1933 and 1937. This is believed to be the second Van de Graaff generator in Europe and the first particle accelerator in Scandinavia. Holtsmark's successful project followed the failed attempt at N.T.H. by Olaf Devik in the 1920s to develop a discharge tube for nuclear disintegration driven by an evacuated Tesla coil. The genesis of Holtsmark's project was the interaction with Odd Dahl, who had constructed a Van de Graaff accelerator at the Department of Terrestrial Magnetism, Carnegie Institution of Washington. Holtsmark approached organizations potentially interested in cancer research and treatment for financial support. The electrical engineers appointed to build several parts of the accelerator had been radio amateurs, like many accelerator pioneers at the time. The team had to construct almost everything themselves given financial constraints and the lack of a supporting electrical industry. When operative in 1937, the Van de Graaff generator was already a comparatively small machine. The Trondheim scientists chose to develop it as a precision machine for proton capturing experiments in light elements. The accelerator proved a useful tool for research and teaching until 1963, when it was shut down and given to the Norwegian Museum of Science and Technology. This article seeks to answer why Holtsmark engaged in such an ambitious project in the periphery of Europe's scientific community and how he succeeded at a small department with several coexisting research activities.

Particle accelerators in Mexico

2006 ◽  
Vol 36 (2) ◽  
pp. 297-309
Author(s):  
MARÍÍA DE LA PAZ RAMOS LARA
Keyword(s):  
Latin America ◽  
Nuclear Physics ◽  
Particle Accelerator ◽  
Particle Accelerators ◽  
Van De Graaff ◽  
Experimental Nuclear Physics

ABSTRACT The first Van de Graaff particle accelerator in Latin America was installed at the Universidad Nacional Autóónoma de Mééxico (UNAM) in 1952. This event marked the beginning of experimental nuclear physics, exclusively for peaceful purposes, in Mexico. The acquisition of this accelerator was fundamental for placing other accelerators into operation, which were used for both research and the resolution of national problems.

FGM Research Activities in Europe

MRS Bulletin ◽  
1995 ◽  
Vol 20 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Wolfgang A. Kaysser ◽  
Bernhard Ilschner
Keyword(s):  
Functionally Graded ◽  
Swiss Federal Institute ◽  
Research Projects ◽  
Graded Materials ◽  
Research Activities ◽  
Federal Institute ◽  
The Status ◽  
Institute Of Technology ◽  
The Individual ◽  
Application Fields

The application of functionally graded materials (FGM) principles is widespread in Europe, despite the lack of national or European programs coordinating the efforts of the individual institutions and researchers. In the following article, the status of research in Europe will be outlined by examples of research projects from various application fields. More detailed information on European FGM research is available from the proceedings of the FGM '94 symposium held in October 1994 in Lausanne, Switzerland. The symposium was organized by B. Ilschner through the Materials Department of the Swiss Federal Institute of Technology of Lausanne.

Special Issue on Selected Papers from 9th CUEE

2012 ◽  
Vol 7 (6) ◽  
pp. 671-671
Author(s):  
Kazuhiko Kasai ◽  
Kohji Tokimatsu ◽  
Saburoh Midorikawa
Keyword(s):  
Earthquake Engineering ◽  
Ground Improvement ◽  
Site Amplification ◽  
Board Members ◽  
Ground Acceleration ◽  
Ground Shaking ◽  
Research Technology ◽  
Piled Raft Foundation ◽  
Research Activities ◽  
Institute Of Technology

The 9th International Conference on Urban Earthquake Engineering (9th CUEE) and the 4th Asia Conference on Earthquake Engineering (4th ACEE) were jointly held on March 6-8, 2012 in Tokyo, as a part of the research activities of the Center for Urban Earthquake Engineering (CUEE), Tokyo Institute of Technology, Japan. The conference featured state-of-the-art technical presentations on various themes relevant to urban earthquake engineering, followed by special sessions addressing the 11th March 2011 Great East Japan Earthquake and Tsunami that resulted in catastrophic damage and an estimated death toll of 20,000. The conference attracted 465 participants from 31 countries, and disseminated 283 papers. The board members of the Journal of Disaster Research (JDR) decided to publish special issues of JDR, selecting papers from the above joint conference, for the purpose of mainly updating status of Japan’s research/technology. The present issue is on the fields of engineering seismology and geotechnical engineering, including extraordinary ground shaking and liquefactions that affected wide areas during the March 11 incident. Other issues such as those on buildings and infrastructures are also planned. The 8 manuscripts selected and managed by the JDR Guest Editors address the following topics: - Array observations of ground shaking - Large peak ground acceleration and site amplification - Attenuation of the seismic wave - Impact against the water-supply outages - Liquefaction in a river levee on soft cohesive ground - Spread foundation performance affecting superstructure - Performance of piled raft foundation with grid-form ground improvement - Liquefaction of levee body and seepage control The Guest Editors as well as JDR board members thank the authors for their contributions and revisions. They also acknowledge gratefully the reviewers for their invaluable comments on the manuscripts.

scholarly journals Preface

2021 ◽  
Vol 2072 (1) ◽  
pp. 011001
Keyword(s):  
High Energy Physics ◽  
Energy System ◽  
High Energy ◽  
System Modelling ◽  
Science And Engineering ◽  
Research Activities ◽  
Institute Of Technology ◽  
Material Computation

The role of computation and simulation to support reseach activities in sciences and technologies becomes more important in recent decades. The International Conference on Computation in Science and Engineering (ICCSE) 2019 have been conducted in Bandung Institute of Technology (ITB) campus, Bandung, Indonesia, at 14-15 October 2019. This conference is organized by Bandung Institute of Technology (ITB, Indonesia). This conference aims at summarizing recent research activities relevant to the computation application in science and engineering and facilitate communication among relevant experts. More than 50 persons from Indonesia, Japan, Malaysia, Turkey, and some other countries will participate in this conference. About 50 presentations including 8 plenary talk will be presented. The presentations are grouped into 12 areas of particular interest: (1) : Complex system Modelling, (2): Energy System Computation, (3): Fluid Dynamics Computation, (4): Artificial Intelligent and Soft Computing, (5): High Energy Physics, (6): Simulation in general, (7): Quantum Computation, (8) HPC, (9): Material Computation, (10): Sub surface modelling and computation, (11): Nuclear and Radiation Computation, and (12): Atmospheric and meteorological computation. List of Organizer, Editorial Board, Contact are available in this pdf.

scholarly journals Surveillance-to-Diagnostic Testing Program for Asymptomatic SARS-CoV-2 Infections on a Large, Urban Campus - Georgia Institute of Technology, Fall 2020

2021 ◽  
Author(s):  
Greg Gibson ◽  
Joshua S. Weitz ◽  
Michael P. Shannon ◽  
Benjamin Holton ◽  
Anton Bryksin ◽  
...  
Keyword(s):  
Saliva Sample ◽  
Diagnostic Testing ◽  
Campus Community ◽  
Surveillance Strategy ◽  
Testing Program ◽  
Georgia Institute ◽  
Research Activities ◽  
Institute Of Technology ◽  
Urban Campus

AbstractA SARS-CoV-2 testing program combining pooled saliva sample surveillance leading to diagnosis and intervention surveyed over 112,000 samples from 18,029 students, staff and faculty, as part of integrative efforts to mitigate transmission at the Georgia Institute of Technology in Fall 2020. Cumulatively, 1,508 individuals were confirmed diagnostically. The surveillance strategy, including focused intensification of testing given case clusters, was effective in disrupting transmission following rapid case increases upon entry in August 2020, and again in November 2020. Owing to broad adoption by the campus community, the program protected higher risk staff while allowing some normalization of research activities.

scholarly journals Accelerator and detector physics at the Bern medical cyclotron and its beam transport line

Nukleonika ◽  
2016 ◽  
Vol 61 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Martin Auger ◽  
Saverio Braccini ◽  
Antonio Ereditato ◽  
Marcel Häberli ◽  
Elena Kirillova ◽  
...  
Keyword(s):  
University Hospital ◽  
Proton Accelerator ◽  
Radioisotope Production ◽  
Beam Transport ◽  
Research Activities ◽  
Beam Transport Line ◽  
Positron Emission ◽  
Transport Line ◽  
Line Ending ◽  
Beam Monitoring

Abstract The cyclotron laboratory for radioisotope production and multi-disciplinary research at the Bern University Hospital (Inselspital) is based on an 18-MeV proton accelerator, equipped with a specifically conceived 6-m long external beam line, ending in a separate bunker. This facility allows performing daily positron emission tomography (PET) radioisotope production and research activities running in parallel. Some of the latest developments on accelerator and detector physics are reported. They encompass novel detectors for beam monitoring and studies of low current beams.

scholarly journals Faculty Use of Tablet Computers at the University of Ontario Institute of Technology

2007 ◽  
Vol 33 (1) ◽  
Author(s):  
Roland Van Oostveen ◽  
William Muirhead
Keyword(s):  
Present Article ◽  
Pedagogical Practices ◽  
Tablet Computers ◽  
Computer Design ◽  
Research Activities ◽  
Personal Use ◽  
Enseignement Supérieur ◽  
Institute Of Technology ◽  
La Modification ◽  
The University

This article describes instructor use of tablet computers for personal use, research activities and teaching practices within the Faculties of Science and Engineering at UOIT. The benefits of tablet use were evaluated on the basis of types of usage, personal and professional productivity and the “richness” of the overall computing experience. Major findings include the enhanced ubiquity of computer use by faculty as a result of increased mobility, and the modification of pedagogical practices before, during and after lectures. The article also reports on faculty speculation regarding the effects of tablet use by students as well as suggestions for improving tablet computer design. The article concludes with a number of recommendations for the expanded use of tablet computers within higher education settings. Résumé : Le présent article décrit l’utilisation par l’instructeur d’ordinateurs tablettes à des fins personnelles, pour des activités de recherche et la pratique de l’enseignement au sein des facultés de sciences et génie de l’UOIT. On a évalué les avantages de l’utilisation de la tablette en fonction des types d’utilisation, de la productivité personnelle et professionnelle et de la « richesse » de l’ensemble de l’expérience de traitement. Parmi les conclusions importantes, on trouve l’ubiquité améliorée de l’utilisation de l’ordinateur par la faculté en raison de la mobilité accrue et de la modification des pratiques pédagogiques avant, pendant et après les cours. Le présent article traite aussi des suppositions du corps professoral quant aux effets de l’utilisation des ordinateurs tablettes par les étudiants et de suggestions visant l’amélioration de la conception de ces ordinateurs. L’article termine sur des recommandations pour une utilisation accrue des ordinateurs tablettes en enseignement supérieur.

scholarly journals The Verification of the Technical Conditions of a Combat-Trainer Jet’s Airframe

2015 ◽  
Vol 2015 (7) ◽  
pp. 34-40
Author(s):  
Marcin Kurdelski ◽  
Michał Stefaniuk ◽  
Wojciech Zieliński ◽  
Tomasz Bartoszek
Keyword(s):  
Service Life ◽  
High Speed ◽  
Deformation Analysis ◽  
List Type ◽  
Destructive Testing ◽  
Surface Areas ◽  
Research Activities ◽  
Riveted Joints ◽  
Institute Of Technology ◽  
The Military

Abstract The combat-trainer jet aircraft is an important element in the process of fighter pilot training. This type of aircraft provides a means of transition from basic training on low-speed propeller trainers to piloting high-speed and highly maneuverable fighter aircraft. Nowadays, in Poland, the PZL TS-11 “ISKRA” jet trainers, designed in 1960s, are employed for training purposes. Because of financial considerations this trainer hasn’t been yet replaced by modern aircraft that conforms to current specifications and needs. As is the case with other aircraft in service of the PLAF, the TS-11 fleet has a large reserve of remaining Hourly Service Life (HSL). This opens an opportunity to extend the Calendar Service Life (CSL), so as it matches the HSL. To this end, a series of technical and research activities needed to be undertaken. The Air Force Institute of Technology is conducting the necessary verification of airframe structural conditions in cooperation with the Military Aviation Works No. 1 J.S.C. (branch in Dęblin) responsible for the overhaul and repair operations. The AFIT’s activities in this program include: deformation analysis of the selected surface areas of the wing and the fuselage; assessment of hidden corrosion in riveted joints; non-destructive testing of selected riveted joints. This paper describes the deformation analysis. As of today, the first stage of the deformation inspection has been completed. At this stage, baseline surface measurements were obtained. Further inspections shall be performed cyclically. The future measurements will be used to establish the areas that deform due to the aircraft operation.

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