Dosimetry device for charged particle radiation
First Claim
1. A dosimetry device for charged particle radiation comprising:
- a printed circuit board having one surface and other surface opposing to each other, the one surface including a central region, and the other surface including a first portion that overlaps the central region of the one surface and a second portion positioned out side of the first portion so as to not overlap the central region;
a plurality of first electrodes formed on the central region of the one surface of the printed circuit board;
a spacing frame disposed on the one surface of the printed circuit board to surround the central region of the one surface;
a second electrode substrate disposed on the spacing frame and having a second electrode opposing to each of the first electrodes through an ionized space; and
a signal processing circuit disposed on the other surface of the printed circuit board,wherein the signal processing circuit includes a plurality of signal processing blocks each comprising;
a plurality of integrating capacitors, coupled to the plurality of first electrodes, for integrating charge at each of the first electrodes;
at least one amplifying circuit; and
at least one selector switch that switchably connects each corresponding one of the integrating capacitors to the amplifying circuit,wherein the plurality of integrating capacitors are disposed on the second portion of the other surface of the printed circuit board.
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Accused Products
Abstract
A dosimetry device for charged particle radiation that can be exclusive of cables and connectors between substrates is provided. A plurality of first electrodes are formed on one surface of a printed circuit board, a second electrode substrate having a second electrode opposing each of the plurality of first electrodes through an ionized space is provided, and a signal processing circuit is provided on the other surface opposing the surface of the printed circuit board. The signal processing circuit includes at least one amplifying circuit, a plurality of integrating capacitors corresponding to the amplifying circuit for integrating charge at each corresponding one of the first electrodes, and at least one selector switch that switchably connects each of the integrating capacitors to the amplifying circuit. The printed circuit board may be a multi-layer printed circuit board.
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Citations
20 Claims
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1. A dosimetry device for charged particle radiation comprising:
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a printed circuit board having one surface and other surface opposing to each other, the one surface including a central region, and the other surface including a first portion that overlaps the central region of the one surface and a second portion positioned out side of the first portion so as to not overlap the central region; a plurality of first electrodes formed on the central region of the one surface of the printed circuit board; a spacing frame disposed on the one surface of the printed circuit board to surround the central region of the one surface; a second electrode substrate disposed on the spacing frame and having a second electrode opposing to each of the first electrodes through an ionized space; and a signal processing circuit disposed on the other surface of the printed circuit board, wherein the signal processing circuit includes a plurality of signal processing blocks each comprising; a plurality of integrating capacitors, coupled to the plurality of first electrodes, for integrating charge at each of the first electrodes; at least one amplifying circuit; and at least one selector switch that switchably connects each corresponding one of the integrating capacitors to the amplifying circuit, wherein the plurality of integrating capacitors are disposed on the second portion of the other surface of the printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dosimetry device for charged particle radiation comprising:
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a printed circuit board having one surface and other surface opposing to each other, the one surface including a central region, and the other surface including a first portion that overlaps the central region of the one surface and a second portion positioned out side of the first portion so as to not overlap the central region; a plurality of first electrodes formed on the central region of the one surface of the printed circuit board; a spacing frame disposed on the one surface of the printed circuit board to surround the central region of the one surface; a second electrode substrate disposed on the spacing frame and having a second electrode opposing to each of the first electrodes through an ionized space; and a signal processing circuit disposed on the other surface of the printed circuit board, wherein the signal processing circuit includes a plurality of signal processing blocks each comprising; a plurality of integrating ceramic capacitors resistant to charged particle radiation, coupled to the plurality of first electrodes, for integrating charge at each of the first electrodes; at least one amplifying circuit; and at least one selector switch that switchably connects each corresponding one of the integrating capacitors to the amplifying circuit, wherein the plurality of integrating ceramic capacitors are disposed on the first portion of the other surface of the printed circuit board, the first portion is a back surface of the first electrodes.
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9. A dosimetry device for charged particle radiation comprising:
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a multi-layer printed circuit board having three or more wiring layers including at least first wiring layer, n-th wiring layer and a plurality of intermediate wiring layers between the first wiring layer and the n-th wiring layer opposing to one another, the multi-layer printed circuit board having one surface positioned on the first wiring layer and other surface positioned on the n-th wiring layer; a plurality of first electrodes formed on the one surface on the first wiring layer; a second electrode substrate having a second electrode opposing to each of the first electrodes through an ionized space; and a signal processing circuit including a plurality of signal processing blocks, wherein each of the signal processing blocks comprising; a plurality of integrating capacitors, coupled to the correspondent electrodes of the plurality of first electrodes, for integrating charge at them; at least one amplifying circuit disposed on the n-th wiring layer; and at least one selector switch disposed on the n-th wiring layer that switchably connects each corresponding one of the integrating capacitors to the amplifying circuit, wherein each of the plurality of signal processing blocks comprises a wiring combination for connecting the selector switch to corresponding one of integrating capacitors, and wherein each wiring combination of the plurality of signal processing blocks is disposed on a different one of the intermediate wiring layers in the multi-layer printed circuit board. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A dosimetry device for charged particle radiation comprising:
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a multi-layer printed circuit board having three or more wiring layers including at least a first wiring layer and an n-th wiring layer, which oppose one another, and a plurality of intermediate wiring layers between the first wiring layer and the n-th wiring layer, the multi-layer printed circuit board having one surface positioned on the first wiring layer and another surface positioned on the n-th wiring layer; a number A of a plurality of first electrodes formed on the one surface positioned on the first wiring layer; a second electrode opposing each of the first electrodes through an ionized space; and a signal processing circuit disposed on the other surface positioned on the n-th wiring layer, the signal processing circuit including a plurality of amplifying circuits and a number B of a plurality of selector switches, each selector switch switchably connecting each of the first electrodes in a corresponding group that includes a number C=A/B of the first electrodes among the number A of plurality of first electrodes to the corresponding amplifying circuit, wherein a number D of a plurality of wirings connecting the number A of the plurality of first electrodes to the number B of the plurality of selector switches are divided into a number E of a plurality of wiring combinations, and the number E of the plurality of wiring combinations are scattered on the plurality of intermediate wiring layers, and wherein the number D is equal to the number C and the number E is equal to the number B.
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Specification