Speaker
Description
Interest in subsurface lunar water has grown due to plans for a permanent Moon base. A common approach involves sending a rover to drill and analyze soil samples, but site selection is largely random. To improve this, a feasibility study is exploring albedo neutron spectrum measurements, which vary in the presence of water. Hardpix detectors are specifically designed for space radiation environments featuring a Timepix3 chip. To convert a Timepix3 chip into a neutron detector, it is covered with a converter material that has high neutron cross section. A simulation was set up using the Allpix Squared framework with four sensors, each covered by LiF, Cd + LiF, and polyethylene, with one bare detector for reference. LiF enriched with ⁶Li has a high cross section for thermal and epithermal neutrons, while polyethylene is used for detecting fast neutrons. The simulation was validated with several measurements. The detector efficiency for neutrons in the range of 10 meV to 10 GeV has been simulated, along with the expected measured neutron spectrum for this four-detector configuration.
| Will the talk be given in person or remotely? | Remotely |
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