Abstract: An apparatus for recording and reproducing an image of a specimen produced by an electron microscope includes a two-dimensional image sensor for storing the energy of an electron beam having passed through the specimen, a stimulating system for scanning the two-dimensional image sensor with stimulating energy to discharge the stored electron beam energy as light from the two-dimensional image sensor, a photoelectric transducer for photoelectrically detecting the light discharged from the two-dimensional image sensor, and an erasing system for applying erasing energy to the two-dimensional image sensor to discharge energy remaining thereon after the light has been photoelectrically detected.

Abstract: An image read-out apparatus includes a main scanning device for scanning a sheet carrying an image recorded thereon with a light beam in a main scanning direction and obtaining light carrying the image information from the sheet, a sub-scanning device for moving the sheet with respect to the light beam in a sub-scanning direction approximately normal to the main scanning direction, and a light detector for detecting the light obtained from the sheet. The light detector comprises a long photomultipler having a light receiving face extending along the main scanning line and positioned close to the sheet.

Abstract: An apparatus for recording and reproducing an image of a specimen produced by an electron microscope includes a two-dimensional image sensor for storing the energy of an electron beam having passed through the specimen, a stimulating system for scanning the two-dimensional image sensor with stimulating energy to discharge the stored electron beam energy as light from the two-dimensional image sensor, a photoelectric transducer for photoelectrically detecting the light discharged from the two-dimensional image sensor, and an erasing system for applying erasing energy to the two-dimensional image sensor to discharge energy remaining thereon after the light has been photoelectrically detected. The apparatus further includes an optical filter for cutting off light which has a wavelength in the wavelength region of the stimulating energy. The stimulating system includes a deflecting element for deflecting the stimulating energy towards the two-dimensional sensor.

Abstract: A method for recording and reproducing an electron beam image information comprising:recording an electron beam image transmitted through reflected from the sample as an electron beam energy latent image on a stimulable phosphor sheet comprising a stimulable phosphor layer having a thickness in the range of 10 to 150 .mu.m or an exposed stimulable phosphor layer with no protective layer;irradiating said stimulable phosphor sheet with an electromagnetic wave to release at least a portion of electron beam energy stored in said stimulable phosphor sheet as stimulated emission;detecting the stimulated emission; andphotoelectrically processing the detected stimulated emission to obtain an electron beam image information of the sample.

Abstract: A radiation image recording and read-out apparatus comprises a case housing a stimulable phosphor sheet and having an opening, a light shielding cover housed in the case for projection therefrom through the opening, a recording section for exposing the stimulable phosphor sheet disposed at an exposure position in the light shielding cover projected out of the case to radiation, and a read-out section having a sub-scanning system for moving the stimulable phosphor sheet between the exposure position and a position in the case. Or, the apparatus comprises a case having an opening for passing the stimulable phosphor sheet therethrough, a recording section for exposing the stimulable phosphor sheet disposed at the exposure position in the case to radiation, and a read-out section having a sub-scanning system for moving the stimulable phosphor sheet between the exposure position and a position projected out of the case.

Abstract: A radiation image read-out apparatus comprises a stimulating ray source constituted by many point light sources for sequentially emitting stimulating rays onto a portion of a stimulable phosphor sheet carrying a radiation image stored therein, and a line sensor constituted by many solid state photoelectric conversion devices. The line sensor extends over the length of the portion of the stimulable phosphor sheet linearly exposed to stimulating rays. Light emitted by the exposed portion of the stimulable phosphor sheet is received and photoelectrically converted by the solid state photoelectric conversion devices. The stimulating ray source and the line sensor are moved with respect to the stimulable phosphor sheet in a main scanning direction normal to the array of the solid state photoelectric conversion devices, and then moved with respect thereto in the array direction each time one main scanning step is finished.

Abstract: A method for detecting radiation image which comprises steps of: causing a radiation image storage panel which comprises a phosphor layer containing a stimulable phosphor to absorb a radiation having passed through an object or radiated from an object; placing said radiation image storage panel and a photosensor composed of numerous photosensitive elements in regular and two-dimensional arrangement together in layers, and irradiating the panel with an electromagnetic wave to release the radiation energy stored in the panel as stimulated emission; and photoelectrically detecting the stimulated emission with said photosensor. A method for detecting radiation image using a radiation image detector which comprises a photosensitive member composed of numerous photosensitive elements and a phosphor layer containing a stimulable phosphor provided thereon is also disclosed.

Abstract: A process for the preparation of a radiation image storage panel which comprises a support, a light-reflecting layer and a stimulable phosphor layer, superposed in this order, characterized in that applying a binder solution-I containing a light-reflecting material and a binder solution-II containing a stimulable phosphor onto a surface of a support or a sheet in such a manner that both the binder solutions are superposed, to form a light-reflecting layer and a stimulable phosphor layer simultaneously.

Abstract: A radiation image recording and reproducing method comprising steps of:causing a stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object,exciting said stimulable phosphor with an electromagnetic wave having a wavelength within the range of 450-900 nm to release the radiation energy stored therein as light emission, anddetecting the emitted light,in which said stimulable phosphor is a divalent europium activated barium fluorohalide phosphor having the formula (I):BaF(Br.sub.1-x I.sub.x):yEu.sup.2+ (I)in which x and y are numbers satisfying the conditions of 1.times.10.sup.-3 .ltoreq.x<1.0 and 0<y.ltoreq.0.2, respectively.

Abstract: A two-dimensional image sensor such as a stimulable phosphor sheet is exposed under vacuum to an electron beam that has passed through a specimen to cause the two-dimensional image sensor to store the energy of the electron beam, then stimulating energy is applied to the two-dimensional image sensor for discharging light therefrom which represents the stored energy of the electron beam, and the light discharged from the two-dimensional image sensor is photoelectrically detected to produce an image signal. A reference image signal is also produced in a similar manner by exposing the two-dimensional image sensor to an electron beam that has not passed through the specimen. One of the first-mentioned image signal and the reference image signal is subtracted from the other per pixel to generate a difference signal, from which an electron microscope image of the specimen is reproduced.

Abstract: A two-dimensional image sensor is exposed under vacuum to an electron beam having passed through a specimen in an electron microscope to enable the image sensor to store the energy of the electron beam. Then, stimulating energy is applied to the image sensor to discharge the stored energy as light. The light discharged from the image sensor is photoelectrically detected to produce an image signal. A defocus value of the image is detected on the basis of the image signal. The image signal is also subject electrically to the Fourier transform to produce a converted image signal indicative of a ring pattern. The degree of one ring, the length of minor and major axes of the ring, and the angle of inclination of the major axis are computed from the converted image signal for computing currents to be fed to a stigmeter of the electron microscope to eliminate astigmatism.

Abstract: A two-dimensional image sensor is exposed under vacuum to an electron beam having passed through a specimen, and instantaneous light emitted from the image sensor upon exposure to the electron beam is detected with an image intensifier to reproduce an image observed to attain a desired focused condition and/or a desired field. After the image has been focused by the operator while observing the image, the image sensor is exposed under vacuum to an electron beam having been transmitted through the specimen to store the energy of the electron beam representative of the image of the specimen on the image sensor. Then, stimulating energy is applied to the image sensor for discharging light therefrom which represents the stored energy of the electron beam. The light discharged from the image sensor is photoelectrically detected to reproduce the transmitted electron-beam image of the specimen as a final output image thereof under the desired focused condition and/or with said desired field.

Abstract: A stimulable phosphor sheet is exposed to an electron beam having passed through a specimen in an electron microscope to record a first magnified image of the specimen on the sheet. A stimulating energy is applied to the sheet for discharging light therefrom which represents the first magnified image. The light discharged from the image sensor is photoelectrically detected to reproduce the first magnified image which can be observed to attain a desired focused condition and/or a desired field on the electron microscope. Then, the same or another stimulable phosphor sheet is exposed to the electron beam to record a second magnified image of the specimen on the sheet, and the second magnified image is reproduced as a final image under the desired focused condition and/or with the desired field.

Abstract: A radiation image read-out system comprises a point-source light for projecting a spot of stimulating rays onto a stimulable phosphor sheet carrying a radiation image stored therein, and a solid state photoelectric converter which is opposed to the spot-like portion of the stimulable phosphor sheet exposed to the spot of stimulating rays and is adapted to receive light from the spot-like portion. The point-source light and the solid state photoelectric converter are moved with respect to the stimulable phosphor sheet to two-dimensionally scan the stimulable phosphor sheet, thereby reading out the radiation image stored therein.

Abstract: A radiation image recording and reproducing method which is improved in efficiency of erasure and comprises steps of:(i) causing a radiation image storage panel containing a divalent europium activated barium fluorohalide stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object;(ii) exposing the panel to stimulating rays to release the radiation energy stored therein as light emission;(iii) detecting the emitted light; and(iv) exposing the panel to light having a wavelength at least within the stimulation wavelength region of the phosphor to erase the radiation energy remaining therein,in which said stimulating rays are electromagnetic waves having a wavelength within the range of 640-900 nm.