公开(公告)号：US20170076830A1

公开(公告)日：2017-03-16

申请号：US15143383

申请日：2016-04-29

Applicant: David R. Douglas ,  Rolland Paul Johnson ,  Andrew Kimber ,  Vasiliy S. Morozov ,  Amy Sy ,  Geoffrey A. Krafft

Inventor： David R. Douglas ,  Rolland Paul Johnson ,  Andrew Kimber ,  Vasiliy S. Morozov ,  Amy Sy ,  Geoffrey A. Krafft

IPC: G21G1/12 ,  H05H7/22 ,  H05H9/00

CPC classification number: G21G1/12 ,  G21G4/08 ,  H05H7/22 ,  H05H9/00 ,  H05H13/10

Abstract: A method and electron linac system for production of radioisotopes is provided. The electron linac is an energy recovery linac (ERL) with an electron beam transmitted through a thin bremsstrahlung radiator. Isotopes are produced through bremsstrahlung photon interactions in an isotope production target that is spatially separated from the bremsstrahlung radiator. The electron beam does not pass through the isotope production target. The electron beam energy is recollected and reinjected into the linac accelerating structure. The reduction of material in the beam by removing the isotope production target and making the radiator thin is the essential aspect of the invention because large spreads in energy and transverse scattering angles caused by material in the beam preclude efficient energy recovery. The method described here can reduce the cost of energy to produce a quantity of radioisotope by more than a factor of 3 compared to a non-ERL bremsstrahlung method.

Abstract translation: 提供了一种用于生产放射性同位素的方法和电子线性加速器系统。 电子线性加速器是一种能量回收线性加速器（ERL），电子束通过薄的bre致辐射器传播。 同位素通过与bre致辐射散热器空间分离的同位素生产目标中的bre致辐射光子相互作用产生。 电子束不通过同位素生产目标。 电子束能被回收并重新注入线性加速结构。 通过去除同位素生产目标并使散热器薄的梁中材料的减少是本发明的重要方面，因为由梁中的材料引起的能量和横向散射角的大量扩散妨碍了有效的能量回收。 与非ERL bre致辐射法相比，这里描述的方法可以降低产生一定量的放射性同位素的能量的成本超过3倍。