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

Use of a two-dimensional ionization chamber array for proton therapy beam quality assurance

2008 ◽  
Vol 35 (9) ◽  
pp. 3889-3894 ◽  
Author(s):  
Bijan Arjomandy ◽  
Narayan Sahoo ◽  
Xiaoning Ding ◽  
Michael Gillin
Keyword(s):  
Quality Assurance ◽  
Proton Therapy ◽  
Ionization Chamber ◽  
Beam Quality ◽  
Two Dimensional

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-435: Use of a Two-Dimensional Ionization Chamber Array for Proton Therapy Quality Assurance Checks

2007 ◽  
Vol 34 (6Part14) ◽  
pp. 2502-2502
Author(s):  
B Arjomandy ◽  
N Sahoo ◽  
M Gillin ◽  
X Zhu
Keyword(s):  
Quality Assurance ◽  
Proton Therapy ◽  
Ionization Chamber ◽  
Two Dimensional ◽  
Therapy Quality

scholarly journals Use of a novel two-dimensional ionization chamber array for pencil beam scanning proton therapy beam quality assurance

2015 ◽  
Vol 16 (3) ◽  
pp. 270-276 ◽  
Author(s):  
Liyong Lin ◽  
Minglei Kang ◽  
Timothy D. Solberg ◽  
Thierry Mertens ◽  
Christian Baumer ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Proton Therapy ◽  
Ionization Chamber ◽  
Beam Quality ◽  
Pencil Beam ◽  
Two Dimensional ◽  
Beam Scanning ◽  
Pencil Beam Scanning

Reproducibility and quality assurance of two-dimensional gel electrophoresis of serum specimens.

1982 ◽  
Vol 28 (4) ◽  
pp. 908-914 ◽  
Author(s):  
R P Tracy ◽  
R M Currie ◽  
D S Young
Keyword(s):  
Quality Assurance ◽  
Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Two Dimensional ◽  
Protein Loss ◽  
Serum Samples ◽  
Silver Stain ◽  
Two Dimensional Gel Electrophoresis ◽  
Report Quality ◽  
Wide Range

Abstract Currently we are using two different ISO-DALT two-dimensional gel electrophoresis systems, designated MC-Iso 1 and MC-Iso 2, for the analysis of serum and plasma samples. Here we report quality-assurance data for both of these systems. CV values for the slopes of the pH gradient (ISO dimension) are 5.6% of less; CV values for the slopes of the molecular-mass curves (log Mr vs relative mobility in the DALT dimension) are 3.4% or less. We examined the various steps of the analysis in detail for reproducibility and protein loss, using radiolabeled albumin, alpha 2-macroglobulin, and beta 2-microglobulin. Generally, in the first dimension, less protein enters the MC-Iso 2 gels (our routine system in which silver stain is used) than enters the MC-Iso 1 gels (our wide-range system for myeloma serum samples, in which the gel is stained with Coomassie Blue), on the average, 87% as much. The CV at this stage for both systems is 5--8%. During equilibration, considerable amounts of protein are lost (approximately 30% in 10 min) from the ISO gel, and the reproducibility is also decreased. Resolution in the DALT dimension has, in most cases, little or no effect on either recovery or reproducibility. Overall, for most proteins expected to appear in an ISO gel of a given pH range, approximately 50--60% of the starting material may be expected to reside in the sodium dodecyl sulfate slab gel, under our conditions. The two most important variables affecting recovery are the concentration of the NaOH (used as catholyte) and the pH of the starting sample. The overall CV for the process is between 8 and 12%.

Quality assurance of IMRT treatment plans for a 1.5 T MR-linac using a 2D ionization chamber array and a static solid phantom

2020 ◽  
Vol 65 (16) ◽  
pp. 16NT01
Author(s):  
David Mönnich ◽  
Jasmin Winter ◽  
Marcel Nachbar ◽  
Luise Künzel ◽  
Simon Boeke ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Ionization Chamber ◽  
Treatment Plans

SU-E-T-125: VMAT Monthly Quality Assurance Using a 2D Ionization Chamber Array

2011 ◽  
Vol 38 (6Part12) ◽  
pp. 3515-3515
Author(s):  
P Myers ◽  
C Buckey ◽  
D Mihailidis ◽  
P Mavroidis ◽  
C Esquivel ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Ionization Chamber

Patient specific IMRT quality assurance with film, ionization chamber and detector arrays: Our institutional experience

2015 ◽  
Vol 115 ◽  
pp. 12-16 ◽  
Author(s):  
Wilbert Cruz ◽  
Ganesh Narayanasamy ◽  
Morgan Regan ◽  
Panayiotis Mavroidis ◽  
Niko Papanikolaou ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Ionization Chamber ◽  
Patient Specific ◽  
Detector Arrays ◽  
Institutional Experience
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