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3
Table of Contents
1. Important Notice for Field Engineers for Preventive Maintenance and QA.....................3
1.1. Introduction.........................................................................................................................3
1.2. Intended Use........................................................................................................................3
1.3. How to Use a Favourite........................................................................................................4
1.4. Radiography and Fluoroscopy Systems................................................................................4
1.5. Mammography Systems......................................................................................................5
1.6. Mammography Dose Measurements with the IQST Phantom............................................5
1.7. Vascular Systems.................................................................................................................6
1.8. Other Measurements...........................................................................................................6
2. Using the Piranha Dose Probe Holder...............................................................................7
2.1. Setup for IQST jig and phantom...........................................................................................7
2.2. Setup for Rad and Flu Above Table Measurements.............................................................8
2.3. Setup for Rad and Flu Under Table Measurements.............................................................9
2.4. Setup for Rad and Flu with Max Extension........................................................................10
2.5. Setup for Measuring Fluoro Dose on an R&F System........................................................11
2.6. Rad Dose Measurements Using the GE Standard Jig.........................................................13
2.7. Rad kV Measurements Using the GE Standard Jig.............................................................14
2.8. Innova Measurements.......................................................................................................15
Appendix 1 – Ion chamber energy correction factors for Cu..............................................16
1. Important Notice for Field Engineers for Preventive
Maintenance and QA
1.1. Introduction
This short description is an addition to GE’s own “Operation
Documentation” for measurements on different type of
modalities.
This description only refers to the operational documentation
and does not cover measurements on other types of X-ray
modalities that are not produced by GE.
In the text, the internal detector refers to the Piranha itself
whereas the external detector is the Piranha Dose Probe,
in short PDP.
1.2. Intended Use
The Piranha may be used instead of the Keithley/RMI/RadCal systems, which use is
described in the different GE procedures (operation documentation). The use of the
Dose Probe Holder in the GE jigs is described in the second part of this manual.
2009-09/1.0B
Piranha Dose Probe Holder User’s Manual
Piranha – the internal
detector
Piranha Dose Probe – the external
detector