Radiation Evaluator, 'Victoreen 6000B Nero', metal / plastic / foam, made by Victoreen, Cleveland, Ohio, United States of America, 1960-1980
The detector is enclosed in a hard black carry case which is divided into two compartments. One side contains the monitor. The other compartment contains a power cord and battery pack. The monitor is blue with two black panels. The left hand panel contains the output screen and a set of push buttons, and the right hand side contains instructions printed in white.
The detector is a non-invasive evaluator of radiation outputs. In a single non-invasive exposure, it simultaneously measures all three variables that characterise image quality: kVp (peak kilovoltage), time and linearity. The unit features software that enables it to translate machine performance from raw data to final reports, eliminating the laborious calculations usually required in statistical and compliance analysis.
The instrument measures the characteristics of an X-ray unit. It includes two pairs of photo detectors to measure the kVp (peak kilovoltage) of the X-ray beam, a single photo detector to measure the relative film exposure produced by the beam, and another single photo detector used to measure the relative current in mA (milliamps) of the X-ray unit. The instrument multiplexes the signals and converts them to digital form for storage and analysis by a microprocessor. The output is a display whose content the user selects via either a switch panel or a remote control unit.