| Project/Area Number |
21740186
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Hiroshima University |
|---|
Principal Investigator |
TAKAHASHI Hiromitsu Hiroshima University, 宇宙科学センター, 特任助教 (10536775)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | 宇宙物理 / 宇宙線 / 中性子 / シンチレータ結晶 / 地球大気 |
|---|
| Research Abstract |
Neutrons become background of hard X-ray/soft gamma-ray detectors observing celestial sources from the universe, since they are charge-less and relatively hard to be detected or rejected. In this research, we have developed a neutron detector consisting of the newly developed LiCaAlF_6 crystal scintillator, to detect only neutrons efficiently. The detector performance was verified at ground measurements, and it is now onboard the PoGOLite balloon experiment launched in 2011. The neutron detector measures the flux of atmospheric neutrons, which are thought to proportion to the background of the PoGOLite detector, in real time.
|
