geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The Prediction Algorithm of the Optimal X-Ray Tube Voltage in Variable Energy Imaging


, : The Prediction Algorithm of the Optimal X-Ray Tube Voltage in Variable Energy Imaging. Guang Pu Xue Yu Guang Pu Fen Xi 35(3): 820-824

X-ray variable energy imaging can obtain the sectional information of complicated structural component successively, and get the whole information by multi-spectrum fusion. Now the energy parameters of X ray imaging mainly depend on man-made setting with the certain step voltage. However this modulation doesn't match to the attenuation thickness variation of the object. Therefore, this paper proposes an optimum tube voltage prediction algorithm based on variable energy imaging. It extracts the effective thickness (ET) and near the effective thickness (NET) in the image sequences which are acquired by pre-scanning the detected object. Then it establishes a physical model between image gray, tube voltage and X ray spectrum. And the model of voltage and gray difference between the ET (high quality area) and NET (prediction area) is also established. On the basis of these two models, the optimal imaging energy forecasting model of NET is modeled. Then, solve the model and get the optimal voltage for NET. At last, by the experiment of the steel blocks with different thickness, testify this prediction algorithm. The results compared with the actual values showed that the prediction algorithm can accurately predict 3 or 4 mm at low voltage and 7 or 10 mm at high voltage. Prediction accuracy is over 95%.

US$29.90

PMID: 26117904


Other references

Aoyagi, Masaru, 1995: Objective Audiometry by Amplitude-Modulation Following Response. Yamagata Medical Journal 13(2): 1-27

Hanak, F.; Hudecek, J., 1998: Collecton of birds of District county museum in Novy Jicin Sbirka ptaku Okresniho vlastivedneho muzea v Novem Jicine. Zpravy MOS: 56: 165-172

Anonymous, 1979: Evaluation of brines. U S

Uriel, J.; Scheidegger, J.J., 1955: Electrophoresis on gelose and staining of the constituents. Bulletin de la Societe de Chimie Biologique 37(1): 165-168

Turchan, W.T.; Shapiro, R.H.; Sevigny, G.V.; Chin-Sinex, H.; Pruden, B.; Mendonca, M.S., 2016: Irradiated human endothelial progenitor cells induce bystander killing in human non-small cell lung and pancreatic cancer cells. Purpose To investigate whether irradiated human endothelial progenitor cells (hEPC) could induce bystander killing in the A549 non-small cell lung cancer (NSCLC) cells and help explain the improved radiation-induced tumor cures observed in A549 tu...

Gionfriddo, P., 2013: Patient-centered research: the author replies. Health Affairs 32(2): 439-439

Anonymous, 2013: Tissus pulmonaires qualite, preparation des prelevements, et recherche dalterations moleculaires le point de vue du pathologiste et du biologiste moleculaire. ce jour, plusieurs mol cules ont montr leur efficacit chez les patients ayant un carcinome broncho-pulmonaire non petites cellules m tastatique. La prescription de ces mol cules est restreinte aux patients pr sentant une alt ration du g ne <it...

Krishnan, R.; Sivaramakrishnan, V., 1993: Occurrence and seasonal wood-destroying activity of Odontotermes sp. of termites. Myforest ch; 29(1): 59-64

Rao, S.V.N., 1998: Modeling the effect of partial forest cutting on stream flow. Forest hydrology studies often use two or more similar watersheds, with one of them serving as a control, to evaluate the effects of various practices on stream flow. Data from two small forested watersheds that were partially harvested (helicopte...

Farrell, R.J.; Duffy, M.J.; Duffy, G.J.; Callan, F.; McKenna, T.J., 1982: The free T3 index in familial TBG deficiency. Clinica Chimica Acta; International Journal of Clinical Chemistry 118(1): 121-123