Neutron Beam Patents (Class 430/953)
  • Patent number: 7037641
    Abstract: A silver halide emulsion sheet for detecting track of charged elementary particles, in which emulsion at least one silver halide emulsion layer and at least one hydrophilic protective colloid layer are applied on both surfaces of a transparent support, and a compound selected from benzotriazoles is contained in said at least one silver halide emulsion layer. A processing method for processing the above-described silver halide emulsion sheet with a developer comprising a developing agent represented by formula (A): wherein R1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group. A developer for use in developing the above-described silver halide emulsion sheet, comprising a developing agent represented by the above-mentioned formula (A).
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 2, 2006
    Assignee: Fuji Photo Film Co.,Ltd.
    Inventor: Ken-ichi Kuwabara
  • Patent number: 6916600
    Abstract: A silver halide emulsion sheet for detecting track of charged elementary particles, in which emulsion at least one silver halide emulsion layer and at least one hydrophilic protective colloid layer are applied on both surfaces of a transparent support, and a compound selected from benzotriazoles is contained in said at least one silver halide emulsion layer. A processing method for processing the above-described silver halide emulsion sheet with a developer comprising a developing agent represented by formula (A): wherein R1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group. A developer for use in developing the above-described silver halide emulsion sheet, comprising a developing agent represented by the above-mentioned formula (A).
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: July 12, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Ken-ichi Kuwabara
  • Patent number: 6916598
    Abstract: This invention discloses compositions that can be polymerized/crosslinked imagewise upon exposure to ionization radiation such as x-ray, electron beam, ion beam, and gamma-ray. This invention also discloses methods of use for these compositions for microfabrication of ceramics, for stereolithography, and for x-ray, e-beam, and ion-beam lithography which can be used for photoresists.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: July 12, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ying Wang
  • Patent number: 6569602
    Abstract: This invention discloses compositions that can be polymerized/crosslinked imagewise upon exposure to ionization radiation such as x-ray, electron beam, ion beam, and gamma-ray. This invention also discloses methods of use for these compositions for microfabrication of ceramics, for stereolithography, and for x-ray, e-beam, and ion-beam lithography which can be used for photoresists.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: May 27, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ying Wang
  • Patent number: 4323641
    Abstract: A gold-toning neutron-activation process for intensifying or amplifying the ontrast in extremely weak images in photographic negatives where the exposure level may be as low as 1.5% of optimum. The method involves three main steps: (a) gold toning of the silver image on the negative; (b) neutron activation of the gold image to produce radioisotopes; and (c) transferring the image to an unexposed autoradiographic film as the ionizing radiation from the radioactive gold exposes the film to produce intensification of the contrast.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: April 6, 1982
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Clarence D. Bond