Research Project
Grant-in-Aid for Young Scientists (B)
I researched the improvement on the data acquisition (DAQ) efficiency of the KamLAND experiment for enormous number of neutrinos emitted from nearby supernovae. When a nearby supernova explodes, it is predicted that more than a million events will occur in about 10 seconds in the KamLAND detector, but since the current DAQ cannot process the whole events, an effective pre-selection is necessary. Since there is relation between event position and time distribution of observed photons, I investigated spatial event selection utilizing the temporal variance of events using real data and simulation. I discovered that it is not expected to improve selection efficiency in the current DAQ, while it was clarified that ideal selection efficiency can be obtained by developing the same DAQ using faster clock, thus I started to develop a new electronics with high speed clock actually.
All 2017 2016
All Journal Article (2 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 2 results, Open Access: 2 results, Acknowledgement Compliant: 1 results) Presentation (2 results)
Physical Review Letters
Volume: 117 Issue: 8 Pages: 082503-082503
10.1103/physrevlett.117.082503
Nuclear Physics A
Volume: 946 Pages: 171-181
10.1016/j.nuclphysa.2015.11.011
