Fusion reactors are expected to be safer, more environmentally friendly, and have a lower nuclear proliferation risk, compared with other energy systems. However, it is widely recognized that large amount of radioactive materials will produced by fusion reactor. Therefore, important fully understand the overall radiation risk level wastes (radwaste) existing Studies on treatment radwaste been c...

This paper presents an advanced optimization analysis of the newly developed transmission measurement method conducted in MARIA MTR reactor for thermal neutrons absorbers estimation irradiated beryllium elements. Several neutron sources combination with various detectors are investigated, along moderating polyethylene layer to improve signal background ratio. It was concluded that use 239 PuBe ...

Simulations of isotope-production irradiations of targets in the radiation environments of fission reactors or particle accelerators require the evaluation of proton and/or neutron particle fluxes within the target and the integration of these with appropriate cross-section data. In fission reactors, proton fluxes are typically considered negligible and the approach reduces to neutron reactions...

spring 1944. Work at Los Alamos, Oak Ridge, and Hanford to design, build, and provide fissionable material for the first atomic bombs was shifting into high gear. In stark contrast, initial bomb project studies on the nuclear chain reaction and plutonium were winding down at the Chicago Metallurgical Laboratory, Argonne National Laboratory’s wartime predecessor. Even as others zeroed in on the ...

Boron Neutron Capture Therapy (BNCT) [4, 5] is a form of a radiation therapy used for treatment of some kinds of cancer (mainly glioblastoma multiforme) which, due to their character, are hard to be extracted with surgical methods. The BNCT method involves the delivery of a capture compound − the B isotope is usually used – which preferentially concentrates in the cancer tissue, followed by the...

Efficient burnup of minor actinides is one of the most promising alternatives for minimizing waste in advanced nuclear fuel cycles. This work examines the concept of employing a Z-pinch driven fusion source in a sub-critical transmutation reactor designed to burn up actinides and generate constant power. Its fuel cycle is designed to allow on-line fission product removal and fuel replenishment....

The Gasdynamic Mirror (GDM) fusion reactor is investigated for utilization as a propulsion device, as well as for use as a surface power system when driven by antiprotons in both instances. The deuterium-tritium fusion reactions in the device will be initiated by the heating provided by the fission fragments and the annihilation products resulting from the “at rest” annihilation of antiprotons ...

Dosimetry cross sections are fundamental quantities for proper determination of the neutron fluences in points interest under heavy radiation load. One critical applications is Reactor Pressure Vessel aging management, related to correct estimation its residual lifetime or many non-reactor including dosimetry accelerator-based fields space applications. The flux neutrons above 12 MeV reference ...