Application Note: Too high kV reading on some GE systems with collimator made in China from 2010 onwards

APPLICATION NOTE

2014-04-15

Too high kV reading on some
GE systems with collimator made in
China from 2010 onwards

BACKGROUND

Some GE systems manufactured in China from 2010 onwards has a K9 Barium glass mirror in the collimator. When measuring with RaySafe Xi (verified on base unit firmware 5.27 and higher) on these systems, you need to correct the kV value.

INSTRUCTIONS

1. Calculate the correction factor (CF) using the formula:

CF = 1.02 - measured kV / 2070

2. Multiply the correction factor (CF) with the measured kV to get a corrected kV value:

Corrected kV = CF x measured kV

EXAMPLE

RaySafe Xi measures 104 kV.

CF = 1.02 - 104 / 2070 => CF = 0.970

Corrected kV = 0.970 x 104 =>

Corrected kV = 100.9

The corrected kV value is 100.9 kV.

 

CONTACT

Please visit http://www.raysafe.com for more information.

Application Note

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