In response to the global shortage of Helium-3 gas, various alternative technologies have been developed for the detection of neutrons. Boron-10 (B-10) lined proportional counters represent one alternative that has been developed by GE Reuter-Stokes and deployed in applications such as Radiation ...
In the absence of neutrons, the boron compound is a non-toxic and non-radioactive agent that accumulates into cancer cells. After a period of time, boron is optimally located in the tumour cells, while the healthy tissue has a lower boron concentration. The tumour site is irradiated with ...
A gas, disposed within a gas-tight container enclosing the plate, insulators and wires, and capable of stopping alpha and Lithium-7 particles and generating electrons produces a signal on the second wire which is detected and subsequently related to the number of neutrons impinging on the plate....
A gas, disposed within a gas-tight container enclosing the plate, insulators and wires, and capable of stopping alpha and Lithium-7 particles and generating electrons produces a signal on the second wire which is detected and subsequently related to the number of neutrons impinging on the plate....
This new narrow plate design (~ 5mm-thick) minimizes the parasitic loss of thermal neutrons to hydrogen capture because the ~(10)B capture reactions are dominant. Preliminary MCNP calculations identifies optimum ~(10)B deposit thickness and increases in efficiency as a function of the number of ...
It is worth to mention that 14C is an important time stamping tool, which is also produced mostly in the upper atmosphere by spallation of 14N with secondary cosmic-ray neutrons. After its formation, it is attached with oxygen atoms to form 14CO2, becomes part of global biogeochemical cycle...
While the high mean neutron energy permits 252 Cf to deliver a high LET, low OER dose to tumor on a macroscopic scale, thermalization of neutrons followed by 10 B capture may augment this dose at the cellular level if adequate loading of tumor cells with 10 B is possible. This paper ...