公开(公告)号：US2837659A

公开(公告)日：1958-06-03

申请号：US54599055

申请日：1955-11-09

Applicant: PHILIPS CORP

Inventor： CHARLES HENDEE ,  SAMUEL FINE

IPC: H01J47/02

CPC classification number: H01J47/022

公开(公告)号：US2479271A

公开(公告)日：1949-08-16

申请号：US71143346

申请日：1946-11-21

Applicant: SHONKA FRANCIS R

Inventor： SHONKA FRANCIS R

IPC: G01T1/185 ,  H01J47/02

CPC classification number: H01J47/02 ,  G01T1/185

公开(公告)号：US2469460A

公开(公告)日：1949-05-10

申请号：US58802245

申请日：1945-04-12

Applicant: STANOLIND OIL & GAS CO

Inventor： FEARON ROBERT E

IPC: G01T1/18 ,  H01J47/02

CPC classification number: H01J47/02 ,  G01T1/18

公开(公告)号：US11885920B2

公开(公告)日：2024-01-30

申请号：US17477512

申请日：2021-09-16

Applicant: SILVERSIDE DETECTORS INC.

Inventor： Andrew Inglis ,  Alison Forsyth ,  Thomas Nadovich ,  Timothy Teal ,  Philip Taber ,  Hidefumi Tomita

IPC: G01T3/00 ,  H01J47/02 ,  H01J47/12

CPC classification number: G01T3/008 ,  G01T3/00 ,  H01J47/02 ,  H01J47/12 ,  H01J47/1205

Abstract: A narrow thermal neutron detector includes a slidably receivable ionization thermal neutron detector module within an overall housing body. An active sheet layer of the ionization thermal neutron detector module can be tensioned across its width. The ionization thermal neutron detector module can include module upper major surface extents and module lower surface extents such that, when installed within the housing body, the module upper major surface extents are in a first spaced apart confronting relationship with housing upper major surface extents to define a first clearance and module lower major surface extents are in a second spaced apart confronting relationship with housing lower major surface extents to define a second clearance to accommodate housing flexing due to ambient pressure change. The housing body can be formed with a single opening for receiving the ionization thermal neutron detection module or with opposing first and second opposing end openings.

公开(公告)号：US11841104B2

公开(公告)日：2023-12-12

申请号：US16854821

申请日：2020-04-21

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Jonathan Maltz ,  Johannes Stahl

IPC: F16L51/00 ,  G05D16/20 ,  H01J47/02 ,  F16L51/02 ,  G01T1/185 ,  A61B6/00 ,  G01T1/02 ,  A61N5/10

CPC classification number: F16L51/00 ,  A61B6/44 ,  A61B6/54 ,  F16L51/02 ,  G01T1/185 ,  G05D16/2013 ,  G05D16/2066 ,  H01J47/02 ,  A61N5/1071 ,  G01T1/02

Abstract: A system for equalizing a pressure in an ionization chamber of a radiation device is provided. The system may include the ionization chamber including: a chamber housing including one or more chamber walls; a chamber volume inside the chamber housing, the chamber volume being filled with a radiation sensitive material; and a pressure adjustment apparatus operably coupled to the chamber volume via at least one wall of the one or more chamber walls, the pressure adjustment apparatus being configured to equalize a first pressure of the radiation sensitive material inside the chamber volume and a second pressure of ambient air outside the chamber housing.

公开(公告)号：US20230352285A1

公开(公告)日：2023-11-02

申请号：US18026368

申请日：2021-09-03

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsuyoshi KODAMA ,  Masaki YAMADA ,  Shinichi HARA ,  Naoki UMEBAYASHI

IPC: H01J47/02

CPC classification number: H01J47/02

Abstract: A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion held by a recess provided in the housing, the electron emitting portion including a concave photoelectric surface facing a light transmitting portion side inside the housing, and an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing. At least a part of the electron capturing portion is located inside a region on an inside of the photoelectric surface.

公开(公告)号：US20210124068A1

公开(公告)日：2021-04-29

申请号：US17072730

申请日：2020-10-16

Applicant: Silverside Detectors Inc.

Inventor： Andrew INGLIS ,  Zachary S. HARTWIG ,  Philip C. TABER ,  Timothy TEAL

IPC: G01T3/00 ,  H01J47/12 ,  H01J47/02 ,  G01T1/185

Abstract: A fissile neutron detection system includes a neutron moderator and a neutron detector disposed proximate such that a majority of the surface area of the neutron moderator is disposed proximate the neutron detector. Fissile neutrons impinge upon and enter the neutron moderator where the energy level of the fissile neutron is reduced to that of a thermal neutron. The thermal neutron may exit the moderator in any direction. Maximizing the surface area of the neutron moderator that is proximate the neutron detector beneficially improves the reliability and accuracy of the fissile neutron detection system by increasing the percentage of thermal neutrons that exit the neutron moderator and enter the neutron detector.

公开(公告)号：US20200072989A1

公开(公告)日：2020-03-05

申请号：US16381602

申请日：2019-04-11

Applicant: SILVERSIDE DETECTORS INC.

Inventor： Andrew Inglis ,  Alison Forsyth ,  Thomas Nadovich ,  Timothy Teal ,  Philip Taber ,  Hidefumi Tomita

IPC: G01T3/00 ,  H01J47/02 ,  H01J47/12

Abstract: A narrow thermal neutron detector includes a slidably receivable ionization thermal neutron detector module within an overall housing body. An active sheet layer of the ionization thermal neutron detector module can be tensioned across its width. The ionization thermal neutron detector module can include module upper major surface extents and module lower surface extents such that, when installed within the housing body, the module upper major surface extents are in a first spaced apart confronting relationship with housing upper major surface extents to define a first clearance and module lower major surface extents are in a second spaced apart confronting relationship with housing lower major surface extents to define a second clearance to accommodate housing flexing due to ambient pressure change. The housing body can be formed with a single opening for receiving the ionization thermal neutron detection module or with opposing first and second opposing end openings.

公开(公告)号：US10036728B2

公开(公告)日：2018-07-31

申请号：US14441218

申请日：2013-11-12

Applicant: Northeastern University

Inventor： Bo Li ,  Ji Hao ,  Hyun Young Jung ,  Yung Joon Jung ,  Swastik Kar

IPC: G01N27/70 ,  G01N27/62 ,  H01J41/02 ,  H01J47/02 ,  H01J49/02

CPC classification number: G01N27/70 ,  G01N27/62 ,  H01J41/02 ,  H01J47/02 ,  H01J49/025

Abstract: An ion detection device has a strip of carbon-based nanomaterial (CNM) film and a chamber enclosing the CNM film. A low bias voltage is applied at the ends of the CNM film strip, and ions present in the chamber are detected by a change in the magnitude of current flowing through the CNM film under the bias. Also provided are methods for fabricating the device, methods for measuring pressure of a gas, and methods for monitoring or quantifying an ionizing radiation using the device.

公开(公告)号：US09911581B2

公开(公告)日：2018-03-06

申请号：US15136102

申请日：2016-04-22

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Ioannis Giomataris ,  Patrick Magnier ,  Jacques Derre

IPC: H01J37/32 ,  G01T1/185 ,  G01T3/00 ,  H01J47/02

CPC classification number: H01J37/32541 ,  G01T1/185 ,  G01T3/008 ,  H01J37/32596 ,  H01J47/026

Abstract: A device for detecting includes a cathode forming a hollow sphere, filled with an ionisation and amplification gas, and an anode placed at the centre of the hollow sphere by the intermediary of a maintaining cane, wherein the anode is formed by an insulating ball and by at least two conductive balls positioned around the insulating ball and at the same predetermined distance from the insulating ball.