公开(公告)号：US08644442B2

公开(公告)日：2014-02-04

申请号：US12364942

申请日：2009-02-03

申请人： John M. Gahl ,  Michael A. Flagg

发明人： John M. Gahl ,  Michael A. Flagg

IPC分类号： G21G1/12 ,  G21G1/08

CPC分类号： G21G1/12 ,  G21G1/08

摘要： The invention provides methods for the production of radioisotopes or for the treatment of nuclear waste. In methods of the invention, a solution of heavy water and target material including fissile material present in subcritical amounts is provided in a shielded irradiation vessel. Bremsstrahlung photons are introduced into the solution, and have an energy sufficient to generate photoneutrons by interacting with the nucleus of the deuterons present in the heavy water and the resulting photoneutrons in turn cause fission of the fissile material. The bremsstrahlung photons can be generated with an electron beam and an x-ray converter. Devices of the invention can be small and generate radioisotopes on site, such as at medical facilities and industrial facilities. Solution can be recycled for continued use after recovery of products.

摘要翻译： 本发明提供了用于生产放射性同位素或用于处理核废料的方法。 在本发明的方法中，在屏蔽的照射容器中提供重金属和靶材料，包括以亚临界量存在的易裂变材料。 将Bre致辐射光子引入溶液中，并且具有足以通过与存在于​​重水中的氘核的相互作用产生光子酮的能量，并且所得的光子酮再次引起裂变材料裂变。 可以用电子束和x射线转换器产生bre致辐射光子。 本发明的装置可以很小并且在现场产生放射性同位素，例如在医疗设施和工业设施。 解决方案可以在回收产品后再循环使用。

公开(公告)号：US20090196390A1

公开(公告)日：2009-08-06

申请号：US12364942

申请日：2009-02-03

申请人： John M. Gahl ,  Michael A. Flagg

发明人： John M. Gahl ,  Michael A. Flagg

IPC分类号： G21G1/00

CPC分类号： G21G1/12 ,  G21G1/08

摘要： The invention provides methods for the production of radioisotopes or for the treatment of nuclear waste. In methods of the invention, a solution of heavy water and target material including fissile material present in subcritical amounts is provided in a shielded irradiation vessel. Bremsstrahlung photons are introduced into the solution, and have an energy sufficient to generate photoneutrons by interacting with the nucleus of the deuterons present in the heavy water and the resulting photoneutrons in turn cause fission of the fissile material. The bremmssrrahlung photons can be generated with an electron beam and an x-ray converter. Devices of the invention can be small and generate radioisotopes on site, such as at medical facilities and industrial facilities. Solution can be recycled for continued use after recovery of products.

摘要翻译： 本发明提供了用于生产放射性同位素或用于处理核废料的方法。 在本发明的方法中，在屏蔽的照射容器中提供重金属和靶材料，包括以亚临界量存在的易裂变材料。 将Bre致辐射光子引入溶液中，并且具有足以通过与存在于​​重水中的氘核的相互作用产生光子酮的能量，并且所得的光子酮再次引起裂变材料裂变。 可以用电子束和x射线转换器产生微粒子光子。 本发明的装置可以很小并且在现场产生放射性同位素，例如在医疗设施和工业设施。 解决方案可以在回收产品后再循环使用。

公开(公告)号：US20140029709A1

公开(公告)日：2014-01-30

申请号：US10141471

申请日：2002-05-08

申请人： John M. Gahl ,  Gregory E. Dale

发明人： John M. Gahl ,  Gregory E. Dale

IPC分类号： H05H3/06

CPC分类号： H05H3/06

摘要： Apparatus for generating thermal neutrons includes an electron accelerator for generating an electron beam and a converter for converting the electron beam into photons. A receiving device is provided for receiving the photons and includes a material which provides a photoneutron target for the photons, for producing high energy neutrons in a photonuclear reaction between the photons and the photoneutron target, and for moderating the high energy neutrons to generate the thermal neutrons. The electron beam has an energy level high enough to produce photons of sufficient energy to exceed the photodissociation threshold of the selected target material, but that is sufficiently low as to enable the material to moderate the high energy neutrons resulting from the photonuclear reaction.

摘要翻译： 用于产生热中子的装置包括用于产生电子束的电子加速器和用于将电子束转换成光子的转换器。 提供接收装置用于接收光子并且包括为光子提供光子中子靶的材料，用于在光子和光子目标靶之间的光子核反应中产生高能中子，并用于调节高能中子以产生热 中子 电子束具有足够高的能量水平以产生足够能量的光子以超过所选择的靶材料的光解离阈值，但是足够低以使材料能够调节由于光子核反应而产生的高能中子。

公开(公告)号：US20240312793A1

公开(公告)日：2024-09-19

申请号：US18606024

申请日：2024-03-15

申请人： Marko J. Tadjer ,  Travis J. Anderson ,  Francis J. Kub ,  Alan G. Jacobs ,  Noel A. Guardala ,  John D. Brockman ,  John M. Gahl

发明人： Marko J. Tadjer ,  Travis J. Anderson ,  Francis J. Kub ,  Alan G. Jacobs ,  Noel A. Guardala ,  John D. Brockman ,  John M. Gahl

IPC分类号： H01L21/423 ,  C01G15/00 ,  C30B29/16 ,  C30B33/04 ,  H01L29/24

CPC分类号： H01L21/423 ,  C01G15/00 ,  C30B29/16 ,  C30B33/04 ,  H01L29/24 ,  C01P2002/54 ,  C01P2006/40 ,  C01P2006/88

摘要： A germanium (Ge)-doped gallium oxide (Ga2O3) semiconductor material and method of making are provided. In embodiments, a method of making the Ge-doped Ga2O3 semiconductor material includes: subjecting a Ga2O3 semiconductor material to neutron irradiation comprising a higher thermal neutron content than fast neutron content, thereby producing a Ge-doped Ga2O3 semiconductor material; and annealing the Ge-doped Ga2O3 semiconductor material at a temperature of at least 700° C. in an atmosphere of nitrogen gas, thereby generating an electrically conductive n-type Ge-doped Ga2O3 semiconductor material.

公开(公告)号：US08666015B2

公开(公告)日：2014-03-04

申请号：US10141471

申请日：2002-05-08

申请人： John M. Gahl ,  Gregory E. Dale

发明人： John M. Gahl ,  Gregory E. Dale

IPC分类号： G21G1/00

CPC分类号： H05H3/06

摘要： Apparatus for generating thermal neutrons includes an electron accelerator for generating an electron beam and a converter for converting the electron beam into photons. A receiving device is provided for receiving the photons and includes a material which provides a photoneutron target for the photons, for producing high energy neutrons in a photonuclear reaction between the photons and the photoneutron target, and for moderating the high energy neutrons to generate the thermal neutrons. The electron beam has an energy level high enough to produce photons of sufficient energy to exceed the photodissociation threshold of the selected target material, but that is sufficiently low as to enable the material to moderate the high energy neutrons resulting from the photonuclear reaction.

摘要翻译： 用于产生热中子的装置包括用于产生电子束的电子加速器和用于将电子束转换成光子的转换器。 提供接收装置用于接收光子并且包括为光子提供光子中子靶的材料，用于在光子和光子目标靶之间的光子核反应中产生高能中子，并用于调节高能中子以产生热 中子 电子束具有足够高的能量水平以产生足够能量的光子以超过所选择的靶材料的光解离阈值，但是足够低以使材料能够调节由于光子核反应而产生的高能中子。