知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.03 seconds)

筛选除外

    DEFECT-RESISTANT PLASTIC SCINTILLATION RADIATION DETECTOR COMPOSITIONS AND FABRICATION METHODS
    2.
    发明申请
    DEFECT-RESISTANT PLASTIC SCINTILLATION RADIATION DETECTOR COMPOSITIONS AND FABRICATION METHODS 审中-公开

    公开(公告)号：US20200224087A1

    公开(公告)日：2020-07-16

    申请号：US16825926

    申请日：2020-03-20

    Applicant: Lawrence Livermore National Security, LLC

    Inventor： Natalia P. Zaitseva ,  M Leslie Carman ,  Andrew M. Glenn ,  Andrew Neil Mabe ,  Stephen A. Payne

    IPC: C09K11/02 ,  C09K11/06 ,  G01T1/203

    Abstract: Scintillating plastics resistant to crazing and fogging, methods of making and using the same are disclosed. The scintillating plastics include: one or more primary polymers present in an amount ranging from about 40 wt % to about 95 wt %; one or more secondary polymers present in an amount ranging from about 1 wt % to about 60 wt %; and one or more fluors present in an amount ranging from about 0.1 wt % to about 50 wt %. Methods of making such plastics include: creating a homogenous mixture of precursor materials including primary polymer, secondary polymer, and fluor in the amounts set forth above; and polymerizing the homogenous mixture. Methods of using such plastics include: exposing the scintillating plastic to one or more extreme environmental conditions for a predetermined amount of time without generating crazing or fogging within the scintillating plastic. Various additional features and specific embodiments of these inventive concepts are also disclosed.

    PLASTIC SCINTILLATOR WITH EFFECTIVE PULSE SHAPE DISCRIMINATION FOR NEUTRON AND GAMMA DETECTION
    5.
    发明申请
    PLASTIC SCINTILLATOR WITH EFFECTIVE PULSE SHAPE DISCRIMINATION FOR NEUTRON AND GAMMA DETECTION 审中-公开
    具有有效脉冲形状分辨率的塑料激光扫描仪用于中子和伽玛检测

    公开(公告)号：US20160186052A1

    公开(公告)日：2016-06-30

    申请号：US15063285

    申请日：2016-03-07

    Applicant: Lawrence Livermore National Security, LLC

    Inventor： Natalia P. Zaitseva ,  M Leslie Carman ,  Nerine Cherepy ,  Andrew M. Glenn ,  Sebastien Hamel ,  Stephen A. Payne ,  Benjamin L. Rupert

    IPC: C09K11/06

    CPC classification number: C09K11/06 ,  C09K11/025 ,  C09K2211/1007 ,  C09K2211/1475 ,  G01T1/203 ,  G01T1/2033 ,  G01T3/06

    Abstract: In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix comprising at least one of: polyvinyl xylene (PVX); polyvinyl diphenyl; and polyvinyl tetrahydronaphthalene; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %. A total loading of dye in the scintillator material is sufficient to cause the scintillator material to exhibit a pulse-shape discrimination (PSD) figure of merit (FOM) of about at least 2.0.

    Abstract translation: 在一个实施例中，闪烁体材料包括聚合物基体; 和在聚合物基质中的初级染料，初级染料是荧光染料，初级染料的存在量为5重量％以上; 其中闪烁体材料表现出与γ射线的光学响应特征不同的中子的光学响应特征。 在另一个实施方案中，闪烁体材料包括聚合物基质，其包含以下中的至少一种：聚乙烯基二甲苯（PVX）; 聚乙烯基二苯基; 和聚四氢呋喃; 和聚合物基质中的初级染料，初级染料是荧光染料，初级染料以大于10重量％的量存在。 闪烁体材料中染料的总载量足以使闪烁体材料呈现约至少2.0的脉冲形状鉴别（PSD）品质因数（FOM）。

    Defect-resistant plastic scintillation radiation detector compositions and fabrication methods
    6.
    发明授权
    Defect-resistant plastic scintillation radiation detector compositions and fabrication methods 有权

    公开(公告)号：US12129414B2

    公开(公告)日：2024-10-29

    申请号：US16825926

    申请日：2020-03-20

    Applicant: Lawrence Livermore National Security, LLC

    Inventor： Natalia P. Zaitseva ,  M Leslie Carman ,  Andrew M. Glenn ,  Andrew Neil Mabe ,  Stephen A. Payne

    IPC: C09K11/02 ,  C09K11/06 ,  G01T1/203

    CPC classification number: C09K11/025 ,  C09K11/06 ,  G01T1/2033

    Abstract: Scintillating plastics resistant to crazing and fogging, methods of making and using the same are disclosed. The scintillating plastics include: one or more primary polymers present in an amount ranging from about 40 wt % to about 95 wt %; one or more secondary polymers present in an amount ranging from about 1 wt % to about 60 wt %; and one or more fluors present in an amount ranging from about 0.1 wt % to about 50 wt %. Methods of making such plastics include: creating a homogenous mixture of precursor materials including primary polymer, secondary polymer, and fluor in the amounts set forth above; and polymerizing the homogenous mixture. Methods of using such plastics include: exposing the scintillating plastic to one or more extreme environmental conditions for a predetermined amount of time without generating crazing or fogging within the scintillating plastic. Various additional features and specific embodiments of these inventive concepts are also disclosed.

    Mixed crystal organic scintillators
    10.
    发明授权
    Mixed crystal organic scintillators 有权
    混合晶体有机闪烁体

    公开(公告)号：US08835865B2

    公开(公告)日：2014-09-16

    申请号：US13670778

    申请日：2012-11-07

    Applicant: Lawrence Livermore National Security, LLC

    Inventor： Natalia P. Zaitseva ,  M Leslie Carman ,  Andrew M. Glenn ,  Sebastien Hamel ,  Robert Hatarik ,  Stephen A. Payne ,  Wolfgang Stoeffl

    IPC: G01T3/06 ,  C30B7/08 ,  C30B29/54 ,  C30B7/06

    CPC classification number: G01T3/06 ,  C30B7/06 ,  C30B7/08 ,  C30B29/54

    Abstract: A mixed organic crystal according to one embodiment includes a single mixed crystal having two compounds with different bandgap energies, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source, wherein the signal response signature does not include a significantly-delayed luminescence characteristic of neutrons interacting with the organic crystal relative to a luminescence characteristic of gamma rays interacting with the organic crystal. According to one embodiment, an organic crystal includes bibenzyl and stilbene or a stilbene derivative, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source.

    Abstract translation: 根据一个实施方案的混合有机晶体包括具有两种具有不同带隙能量的化合物的单一混晶，所述有机晶体具有对来自放射源的中子表现出信号响应特征的物理性质，其中所述信号响应特征不包括 相对于与有机晶体相互作用的γ射线的发光特性，与有机晶体相互作用的中子的显着延迟的发光特性。 根据一个实施方案，有机晶体包括二苄基和二苯乙烯或二苯乙烯衍生物，该有机晶体具有对来自放射源的中子具有信号响应特征的物理性质。

Patent Agency Ranking