نتایج جستجو برای: absorbed ratio
تعداد نتایج: 521179 فیلتر نتایج به سال:
Ultra -high molecular weight polyethylene (UHMWPE) is the current material of choice for bearing surface applications in total joint arthroplasty. In an effort to enhance the wear properties of the material many companies have recently resorted to electron beam and gamma irradiation of the components prior to the machining. It is of considerable interest to accurately determine the dose absorbe...
Objective(s): The purpose of this research is to study the effect of beta spectrum on absorbed fraction ( ) and to find suitable analytical functions for beta spectrum absorbed fractions in spherical and ellipsoidal volumes with a uniform distribution for several radionuclides that are commonly used in nuclear medicine.Methods: In order to obtain the beta particle absorbed fraction, Monte Carlo...
We present broadband properties of sources in the Chandra Deep Field-North (CDF-N) with known spectroscopic redshifts. The high luminosity and high redshift bins are dominated by typical quasars. The intermediate redshift (z ∼ 0.7− 1.5) and luminosity ranges (L0.5−8.0keV ∼ 10 42.5−43.5 erg s) show a mix of different source types, with the apparently absorbed objects in the majority. At the fain...
BACKGROUND The aim of the present study is to evaluate the kinetics and dosimetry of 64CuCl2 in human prostate cancer (PCa) lesions. We prospectively evaluated 50 PCa patients with biochemical relapse after surgery or external beam radiation therapy. All patients underwent 64CuCl2-PET/CT to detect PCa recurrence/metastases. Volumes of interest were manually drawn for each 64CuCl2 avid PCa lesio...
Computational phantoms are commonly used in internal radiation dosimetry to assess the amount and distribution pattern of energy deposited in various parts of the human body from different internal radiation sources. Radiation dose assessments are commonly performed on predetermined reference computational phantoms while the argument for individualized patient-specific radiation dosimetry exist...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید