X Persei is a persistent low-luminosity X-ray pulsar of period $\sim$835 s in Be binary system. The field strength at the neutron star surface not known precisely, but indirect signs indicate magnetic above $10^{13}$ G, which makes object one most magnetized pulsars. Here we present results observations performed with Imaging Polarimetry Explorer (IXPE). polarization signal was found to be stro...

Introduction: To date, gold nanoparticles (GNPs) have been demonstrated to have great potential as contrast agent for CT imaging and therapeutics. This study was designed to evaluate any effect on X-ray attenuation that might result from using GNPs with a variety of size, surface chemistries and shapes.   Materials and Methods: Spherical GNPs and gold nanorod...

Background: People occasionally undergo medical diagnostic X-ray examinations and expose their red blood cells to radiation. Radiation that is generated from medical diagnostic X-ray machines is widely used in medical diagnoses. One of the important parameters is kilo-voltage (kV) that is applied across the X-ray tube in medical diagnostic X-ray machines. Kilo-voltage influences the radiation d...

the present study investigated the radioprotective efficacy of lentil ( lens culinaris ) sprouts against x-ray radiation-induced cellular damage. lentil seeds were dark germinated at low temperature and the sprout extract was prepared in pbs. free radical scavenging of extract was evaluated using 2,2-diphenyl-1-picrylhydrazyl (dpph) assay and then the radioprotective potency of extract (0 to 10...

the results of researches in the field of the using x-ray in all over the world have been successful. the main subject which needs more investigation and have been allocated part of the researches in most of the atomic research institutes, is the research about possible harms of irradiated food for human beings, base on the researches, using irradiation for inhibition of sprouting and preservat...

monte carlo method is a very accurate method to optimize medical diagnostic radiology spectra and simulation of radiation transportation. using mcnp code, radiology and mammography attenuated x-rayspectraweresimulated.the ipem report number 78 was used as a reference to compare with the geant4 and mcnp simulations because of its popularity and wide availability. the results of geant4 in 40kev s...

conclusions at present, no single diagnostic procedure is able to cause damage to the embryo or fetus. there are possible harmful effects for doses above 0.2 - 0.25 gy (20-25 rad). context many women of reproductive age and pregnant women require diagnostic tests involving ionizing radiation. fetal exposure to radiation worries both the patient and the obstetricians and could lead to inappropri...