WAVELENGTH CHANGE-OVER DEVICE FOR SYNCHROTRON RADIATION

摘要

PURPOSE: To obtain a wavelength change-over device for a synchrotron radiation which switches the wavelength at a high speed. ;CONSTITUTION: High energy electrons are moved in wave motion vertically around the electron orbit to change the angle of outgoing synchrotron radiation. This synchrotron radiation is projected through a first slit 7a and a second slit 7b to analyzing crystals 8, 9. These analyzing crystals 8, 9 are fixed to have different incident angles to the coming synchrotron radiation. From the first analyzing crystal 8, monocolor X-rays 21b having the wavelength below the absorption end of iodine K-shell are reflected, and from the second analyzing crystal 9, monocolor X-rays 22b having the wavelength above the absorption end of iodine K-shell are reflected. These monocolor X-rays 21b, 22b go through a heart of an examinee including iodine in the blood, to an X-ray image sensing device, and the data are processed to obtain a clear image of the heart part.;COPYRIGHT: (C)1993,JPO&Japio