Fluke Biomedical 35080M User Manual

Page 60

Appendix

Procedure For Making kVp Measurements

C-1

Section C

Procedure for Making kVp Measurements on Rhodium

Anode, Rhodium Filtration Selection of

GE DMR Mammography X-ray System

C.1 Introduction

The GE DMR mammography X-ray system has both molybdenum and rhodium anode selections.
Measurements on the Mo anode track can be made in the same manner as on any other Mo anode
mammography generator, provided Mo is also selected as the additional filter material. This involves
using the Model 35080M Dosimeter and its two associated mammo filter packs, the Cadmium K-edge
Mammo Filter Pack (37355) and the Linear Mammo Filter Pack (37351), as instructed in the Model
10100A TRIAD

Field Service Kit Instruction Manual (37580) or the Model 35080M kVp Divider

Instruction Manual (37648). This addendum is intended to provide a method to measure kVp on the
rhodium anode track, with rhodium also selected as the additional filter material.

C.2 Procedure

The automatic K-edge correction feature of the
35050AT (available in firmware versions 11-Jan-
95 and later) should not be used when following
this procedure. When preparing to make
measurements with the Linear Mammo Filter
Pack (37351), be sure to press the
RESET/MEASURE button twice, until the phrase
“kVp NOT Corrected” appears on the top line of
the Model 35050AT display. All subsequent
measurements made with the Linear Mammo
Filter Pack (37351) should also have this phrase
on the top line of the display. If you have an
older version of the Model 35050AT Dosimeter
that does not provide automatic K-edge
corrections, ignore this note.

NOTE