REX RF 320 Manuale del Proprietario Scaricare il pdf (Pagina 41)

Operator manual REX-***R(F)

LISTEM Corporation 41/90

3.6 ABC operation

3.6.1 Introduction

Automatic Brightness Control(ABC) always makes a regular image on the monitor by controling

the fluoroscopic tube-voltage or fluoroscopic tube-current according to the X-ray absorption of

a subject.

REX-R/F quickly copes with reaction speed of the monitor brightness according to the change of

a subject by controling simultaneously the fluoroscopic tube-voltage and fluoroscopic

tube-current.

3.6.2 Operating Sequences

Start fluoroscopy by pressing the FLU button at tower part.

Fluoroscopic tube-voltage and fluoroscopic tube-

current

irradiated to a patient during the fluoroscopy are displayed on

the LCD screen to make controller know it.

ABC is geared with the range of 40∼

120KV for fluoroscopic

tube-voltage and of 0.4∼

4mA(Higher mA : Option) for

fluoroscopic tube-current according to the X-

ray absorption of

a subject during the fluoroscopy.

To prevent the radiation from exposing e

xcessively, the time

for fluoroscopy isn't over 5 minutes and you can hear the

warning signal when the set period passes.

Turning on the power by pressing the button for the x-

ray

sysytem.

2.Slecting tube 2(fluoroscpic mode).

3.Don't select the BUCKY because it

is fixed to the Tower

part.

Slecting ABC at workstation.

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REX RF 320 Manuale del Proprietario Pagina 41