Linac Geocheck, SeeDOS Code GC1
The Geocheck-1 for fast and precise geometric tests of linear accelerators
The Geocheck-1 provides a fast and simple way to verify recommended (i.e. TG40), periodic checks of the treatment system and to perform higher level physics tests.
With
Geocheck-1, the following parameters can be evaluated.
![](_themes/st-pvfranblue/bull1.gif) |
Alignment of the laser system |
![](_themes/st-pvfranblue/bull1.gif) |
Mechanical isocenter 0°- 90°- 270° |
![](_themes/st-pvfranblue/bull1.gif) |
Agreement between the light field axis and the mechanical axis of the collimator |
![](_themes/st-pvfranblue/bull1.gif) |
Indication of the size of collimators |
![](_themes/st-pvfranblue/bull1.gif) |
Symmetry of collimators |
![](_themes/st-pvfranblue/bull1.gif) |
Collimator rotation scale |
![](_themes/st-pvfranblue/bull1.gif) |
Effect of gravity position on collimators at 90° and at 270° |
![](_themes/st-pvfranblue/bull1.gif) |
Value of the ODI isocenter distance |
![](_themes/st-pvfranblue/bull1.gif) |
Variations of the ODI with gantry rotation |
![](_themes/st-pvfranblue/bull1.gif) |
Linearity of the ODI |
![](_themes/st-pvfranblue/bull1.gif) |
Direction and scale of the rectilinear movements of the table |
![](_themes/st-pvfranblue/bull1.gif) |
Isocenter and scale of the rotation movement of the table |
![](_themes/st-pvfranblue/bull1.gif) |
Geometrical focus |
|
![](geoche1.jpg) |
Specifications
![](geoche2.gif)
Geocheck-1 - SeeDOS Code GC1
For a more detailed account of the Geocheck phantom please click here (pdf file)
For an Acrobat Reader to read the pdf file please click on the adjacent Acrobat logo ![](getacro.gif)
If you are interested in any of the products mentioned here, please complete a Quotation Request Form or an
Enquiry Form so that we may promptly respond to your detailed request.
Please contact Colin Walters at cwalters@seedos.com if you would like further information or you have questions
or comments about this web site. SeeDOS Ltd, 26, The Maltings, Leighton Buzzard, Bedfordshire LU7 4BS, United Kingdom Tel: +44 1525 850 670 • Fax: +44 1525 850 685
|
|