| 摘要 |
PURPOSE:To know the condition of an inspection material clearly, by using the laser beam from a light source oscillating argon laser beam and measuring the variation between the reflectance of the laser beam not applying a magnetic field and that at the time of applying the magnetic field to a material to be inspected. CONSTITUTION:An argon laser being capable of selecting wavelength by Littrow prism is used for a light source 1 and the measurement is performed by using a suitable oscillation wavelength. The argon laser beam of vertical polarized light is passed through an attenautor 2 and is made incident to a glass plate 4 placing blood as an inspection material 3 after making incident and reflecting to and from a mirror M1 set at an angle theta=45 deg.. About 2.5KOe direct current magnetic field 8 is applied to the material 3 at right angles to the incidence face and the reflected light from the material 3 is made incident and reflected to and from a mirror M2 and then, is taken out from a diaphragm 5. Then, said reflected light is photodetected by a detector 6 and is measured and is recorded by a recorder 7. The blood as the material 3 is discriminated as to whether it is the blood of a healthy person or a patient of a malign or benign disease. |
