SU-FF-T-21: A Method to Increase the Resolution of IMRT Plan Verification with a Two-Dimensional Ionisation Chamber Array

2006 ◽  
Vol 33 (6Part7) ◽  
pp. 2054-2055 ◽  
Author(s):  
B Poppe ◽  
A Rubach ◽  
D Harder ◽  
K Willborn
Keyword(s):  
Two Dimensional ◽  
Imrt Plan ◽  
Ionisation Chamber

scholarly journals Two-dimensional readout in a liquid xenon ionisation chamber

2002 ◽  
Vol 477 (1-3) ◽  
pp. 184-190 ◽  
Author(s):  
V. Solovov ◽  
V. Chepel ◽  
A. Pereira ◽  
M.I. Lopes ◽  
R. Ferreira Marques ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Liquid Xenon ◽  
Ionisation Chamber

Two-dimensional ionization chamber arrays for IMRT plan verification

2006 ◽  
Vol 33 (4) ◽  
pp. 1005-1015 ◽  
Author(s):  
Bjoern Poppe ◽  
Arne Blechschmidt ◽  
Armand Djouguela ◽  
Ralf Kollhoff ◽  
Antje Rubach ◽  
...  
Keyword(s):  
Ionization Chamber ◽  
Two Dimensional ◽  
Imrt Plan

SU-FF-T-140: Dosimetric IMRT Plan Verification and Daily Quality Assurance with a Two-Dimensional Ionization Chamber Array

2005 ◽  
Vol 32 (6Part8) ◽  
pp. 1982-1982
Author(s):  
B Poppe ◽  
A Blechschmidt ◽  
A Djouguela ◽  
R Kollhoff ◽  
A Rubach ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Ionization Chamber ◽  
Two Dimensional ◽  
Imrt Plan

EP-1386 DYNAMIC IMRT PLAN VERIFICATION USING TWO-DIMENSIONAL ION-CHAMBER ARRAY – RESULTS AND EXPERIENCE WITH 100 PATIENTS

2012 ◽  
Vol 103 ◽  
pp. S526
Author(s):  
M. Durai ◽  
S. Seema ◽  
V. Subramani ◽  
A. Gandhi ◽  
A. Biswas ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Imrt Plan ◽  
Ion Chamber

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

Analysis of the 9th November 1990 flare

2000 ◽  
Vol 179 ◽  
pp. 229-232
Author(s):  
Anita Joshi ◽  
Wahab Uddin
Keyword(s):  
Image Processing ◽  
Two Dimensional ◽  
Temporal Behaviour ◽  
Contour Maps ◽  
Dimensional Measurements ◽  
Processing Software ◽  
Image Processing Software

AbstractIn this paper we present complete two-dimensional measurements of the observed brightness of the 9th November 1990Hαflare, using a PDS microdensitometer scanner and image processing software MIDAS. The resulting isophotal contour maps, were used to describe morphological-cum-temporal behaviour of the flare and also the kernels of the flare. Correlation of theHαflare with SXR and MW radiations were also studied.

High Resolution Microscopy of Multi-Layered Biological Crystals

1982 ◽  
Vol 40 ◽  
pp. 80-83
Author(s):  
H.A. Cohen ◽  
T.W. Jeng ◽  
W. Chiu
Keyword(s):  
High Resolution ◽  
Low Dose ◽  
Three Dimensional ◽  
Data Interpretation ◽  
Two Dimensional ◽  
Biological Objects ◽  
Density Maps ◽  
Density Map ◽  
Complex Crystal ◽  
High Resolution Microscopy

This tutorial will discuss the methodology of low dose electron diffraction and imaging of crystalline biological objects, the problems of data interpretation for two-dimensional projected density maps of glucose embedded protein crystals, the factors to be considered in combining tilt data from three-dimensional crystals, and finally, the prospects of achieving a high resolution three-dimensional density map of a biological crystal. This methodology will be illustrated using two proteins under investigation in our laboratory, the T4 DNA helix destabilizing protein gp32*I and the crotoxin complex crystal.

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