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公开(公告)号：US10823861B2
公开(公告)日：2020-11-03
申请号：US15350943
申请日：2016-11-14
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Daniel Ferenc
Abstract: A large area position-sensitive single-photon detector and radiation detector is described. Photon detectors are coupled to a large area panel configured with an equipotential feedthrough chamber that operates in combination with a photocathode of a hemispherical window to provide electrostatic focusing for the photoelectrons. The panels can be assembled into an enveloping structure, such as a PET scanner, which is globally and/or locally curved, such as into a sphere, ovoid, elongated cylinder, or similar structure providing significant sensitive surface surrounding an object, such as a patient being scanned in a medical positron emission tomography (PET) scanner. Increased sensitivity is provided in response to registering radiation by surrounding the patient, so that reduced patient radiation dosing levels are required.
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公开(公告)号：US09064678B2
公开(公告)日：2015-06-23
申请号：US13660837
申请日：2012-10-25
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Daniel Ferenc
Abstract: A scalable vacuum photosensor configured to simplify mass production with a housing having an evacuated first side at an ultrahigh vacuum and a second side which does not require high vacuum. The first side of the device is sealed to a base plate, having a central electron readout element, using an oxide-free sealing technique, with the deposited sealing areas serving as high voltage throughputs from the first to second sides. A conductive photocathode layer on the transparent first side converts photons to photoelectrons and concentrates the photoelectrons upon the readout. The first and second sides together form an electrostatic lens for accelerating and focusing photoelectrons upon the readout, preferably having a scintillator which generates secondary light measured by an optical detector in the second side of the housing.
Abstract translation: 一种可缩放的真空光电传感器，其被配置为通过具有在超高真空下的抽真空的第一侧的壳体和不需要高真空的第二侧来简化批量生产。 该装置的第一侧被密封到具有中央电子读出元件的基板，使用无氧化物密封技术，沉积的密封区域用作从第一至第二侧的高电压通过量。 透明第一面上的导电光电阴极层将光子转换为光电子，并将光电子集中在读出中。 第一和第二面一起形成用于在读出时加速和聚焦光电子的静电透镜，优选地具有产生由壳体的第二侧中的光学检测器测量的二次光的闪烁体。
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公开(公告)号：US20130112856A1
公开(公告)日：2013-05-09
申请号：US13660837
申请日：2012-10-25
Applicant: The Regents of the University of California
Inventor： Daniel Ferenc
IPC: H01L31/0232
Abstract: A scalable vacuum photosensor configured to simplify mass production with a housing having an evacuated first side at an ultrahigh vacuum and a second side which does not require high vacuum. The first side of the device is sealed to a base plate, having a central electron readout element, using an oxide-free sealing technique, with the deposited sealing areas serving as high voltage throughputs from the first to second sides. A conductive photocathode layer on the transparent first side converts photons to photoelectrons and concentrates the photoelectrons upon the readout. The first and second sides together form an electrostatic lens for accelerating and focusing photoelectrons upon the readout, preferably having a scintillator which generates secondary light measured by an optical detector in the second side of the housing.
Abstract translation: 一种可缩放的真空光电传感器，其被配置为通过具有在超高真空下的抽真空的第一侧的壳体和不需要高真空的第二侧来简化批量生产。 该装置的第一侧被密封到具有中央电子读出元件的基板，使用无氧化物密封技术，沉积的密封区域用作从第一至第二侧的高电压通过量。 透明第一面上的导电光电阴极层将光子转换为光电子，并将光电子集中在读出中。 第一和第二面一起形成用于在读出时加速和聚焦光电子的静电透镜，优选地具有产生由壳体的第二侧中的光学检测器测量的二次光的闪烁体。
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4.发明申请公开(公告)号：US20170123084A1
公开(公告)日：2017-05-04
申请号：US15350943
申请日：2016-11-14
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Daniel Ferenc
IPC: G01T1/29
CPC classification number: G01T1/2985 , A61B6/037 , G01T1/2018
Abstract: A large area position-sensitive single-photon detector and radiation detector is described. Photon detectors are coupled to a large area panel configured with an equipotential feedthrough chamber that operates in combination with a photocathode of a hemispherical window to provide electrostatic focusing for the photoelectrons. The panels can be assembled into an enveloping structure, such as a PET scanner, which is globally and/or locally curved, such as into a sphere, ovoid, elongated cylinder, or similar structure providing significant sensitive surface surrounding an object, such as a patient being scanned in a medical positron emission tomography (PET) scanner. Increased sensitivity is provided in response to registering radiation by surrounding the patient, so that reduced patient radiation dosing levels are required.
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