| Project/Area Number |
19740167
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
TSUCHIYA Harufumi The Institute of Physical and Chemical Research, 牧島宇宙放射線研究室, 基礎科学特別研究員 (70415230)
|
|---|
| Research Collaborator |
ENOTO Teruaki 東京大学東京大学, 大学院・理学系研究科・日本学術振興会, 特別研究員(DC1)
KATO Hiroshi 独立行政法人理化学研究所, 牧島宇宙放射線研究室, 先任技師
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,300,000 (Direct Cost: ¥2,300,000)
|
|---|
| Keywords | 粒子加速 / 雷 / 雷雲 / ガンマ線 / 放射線観測 / 雷放電 / 衝突系プラズマ / γ線 / 雷活動 |
|---|
| Research Abstract |
High-energy gamma rays, which are possibly associated with electron acceleration in thunderstorm activity, have been observed. Given these observations, we obtained a new idea that such gamma rays reveal mechanisms of electric-field acceleration, which is difficult to be investigated by space measurement. Hence, gamma-ray observations have been performed since 2006, at the coastal area of Japan sea and at a high mountain. By 2010 February, 8 thundercloud gamma-ray events were obtained. These detections confirmed that thunderclouds are indeed natural particle accelerators.
|
