Calvin Didier Njiki, Yolande Huguette Ebele Yigbedeck, Joseph Eric Martial Ndjaka Manyol, Thierry Ndzana Ndah
{"title":"Comparison between Predicted and Measured X-Ray Output in Some Conventional Radiography Units","authors":"Calvin Didier Njiki, Yolande Huguette Ebele Yigbedeck, Joseph Eric Martial Ndjaka Manyol, Thierry Ndzana Ndah","doi":"10.4236/IJMPCERO.2019.84018","DOIUrl":null,"url":null,"abstract":"This study aims to investigate how accurate are TASMICS and TASMIP \nmodels in predicting the X-ray output of some Conventional Radiology X-ray \nunits with high frequency generators. The X-ray output in microgray per milliampere \nseconds (μGy/mAs) at 100 cm from the X-ray tube was determined \nfor selected high voltages and taking into account the total filtration. The \nX-ray output was then measured directly with the multi-purpose detectors \n(MPD), Raysafe X2. The maximum relative error between measured and predicted \nvalues was found to be equal to 20%. The maximum relative error between \nmeasured and predicted values obtained demonstrates the difficulty of \naccurately predicting the X-ray tube output using TASMICS and TASMIP \nmodels since they are based on fixed anode angles and different composition \nof the tungsten anode.","PeriodicalId":14028,"journal":{"name":"International Journal of Medical Physics, Clinical Engineering and Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Medical Physics, Clinical Engineering and Radiation Oncology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4236/IJMPCERO.2019.84018","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This study aims to investigate how accurate are TASMICS and TASMIP
models in predicting the X-ray output of some Conventional Radiology X-ray
units with high frequency generators. The X-ray output in microgray per milliampere
seconds (μGy/mAs) at 100 cm from the X-ray tube was determined
for selected high voltages and taking into account the total filtration. The
X-ray output was then measured directly with the multi-purpose detectors
(MPD), Raysafe X2. The maximum relative error between measured and predicted
values was found to be equal to 20%. The maximum relative error between
measured and predicted values obtained demonstrates the difficulty of
accurately predicting the X-ray tube output using TASMICS and TASMIP
models since they are based on fixed anode angles and different composition
of the tungsten anode.