Linear accelerator for security, industrial and medical applications with rapid beam parameter variation

We review advanced accelerators for medical applications with respect to the following key technologies: (i) higher RF electron linear accelerator (hereafter “linac”); (ii) optimization of alignment for the proton linac, cyclotron and synchrotron; (iii) superconducting magnet; (iv) laser technology. Advanced accelerators for medical applications are categorized into two groups. The first group consists of compact medical linacs with high RF, cyclotrons and synchrotrons downsized by optimization of alignment and superconducting magnets. The second group comprises laser-based acceleration systems aimed of medical applications in the future. Laser plasma electron/ion accelerating systems for cancer therapy and laser dielectric accelerating systems for radiation biology are mentioned. Since the second group has important potential for a compact system, the current status of the established energy and intensity and of the required stability are given.

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Injector for a 100-500 kV Linac Electron Microscopy Source

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100061380 ◽

1967 ◽

Vol 25 ◽

pp. 274-275

Author(s):

John W. Coleman

Keyword(s):

Electron Microscopy ◽

Linear Accelerator ◽

Beam Current ◽

Ion Trapping ◽

University Of Virginia ◽

Electron Injector ◽

Illumination System ◽

Radio Corporation Of America ◽

The University ◽

Optical Integration

The injector to be described is a component in the Electron Injector-Linear Accelerator—Condenser Module for illumination used on the variable 100-500kV electron microscope being built at the Radio Corporation of America for the University of Virginia.The injector is an independently powered, autonomous unit, operating at a constant 6kV positive with respect to accelerator potential, thereby making beam current independent of accelerator potential. The injector provides for on-axis ion trapping to prolong filament lifetime, and incorporates a derived Einzel lens for optical integration into the overall illumination system for microscopy. Electrostatic beam deflectors for alignment are an integral part of the apparatus. The entire injector unit is cantilevered off a door for side loading, and is topped with a 4-filament turret released electrically but driven by a self-contained Negator spring motor.

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Review of Research, Comparisons and Medical Applications of Ericksonian Techniques.

Contemporary Psychology ◽

10.1037/028304 ◽

1990 ◽

Vol 35 (2) ◽

pp. 185-185

Author(s):

Paul L. Wachtel

Keyword(s):

Medical Applications

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COMPARISON OF EMPIRICAL AND THEORETICAL LAWS OF PARAMETER VARIATION OF EXPLOSION WAVES IN THE SEA

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1979813 ◽

1979 ◽

Vol 40 (C8) ◽

pp. C8-62-C8-67

Author(s):

V. E. Fridman

Keyword(s):

Parameter Variation

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SARI : A User-Oriented Data Bank System for Medical Applications

Methods of Information in Medicine ◽

10.1055/s-0038-1635729 ◽

1976 ◽

Vol 15 (02) ◽

pp. 69-74

Author(s):

M. Goldberg ◽

B. Doyon

Keyword(s):

Data Base ◽

Personal Data ◽

Data Bank ◽

Medical Applications ◽

Basic Principles ◽

Base Management ◽

General Data ◽

Privacy Problem ◽

Bank System ◽

Made In

This paper describes a general data base management package, devoted to medical applications. SARI is a user-oriented system, able to take into account applications very different by their nature, structure, size, operating procedures and general objectives, without any specific programming. It can be used in conversational mode by users with no previous knowledge of computers, such as physicians or medical clerks.As medical data are often personal data, the privacy problem is emphasized and a satisfactory solution implemented in SARI.The basic principles of the data base and program organization are described ; specific efforts have been made in order to increase compactness and to make maintenance easy.Several medical applications are now operational with SARI. The next steps will mainly consist in the implementation of highly sophisticated functions.

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