| Budget Amount *help |
¥3,610,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥510,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,400,000 (Direct Cost: ¥1,400,000)
|
|---|
| Research Abstract |
The fluorescence and long-lasting emission properties are examined by irradiating it by some ions to improve its long-lasting property. The spectral shape of long-lasting phosphor has dependencies to the kind of ions and incident energy. Therefore, this material has the potential of being employed to identify the kinds of ion and the incident energy. The radiation damages exhibit incident particle dependence and damages by protons is smallest. Proton is a good candidate for improving the long-lasting property of the materials. By irradiating protons, it was found that the decay time of the long-lasting emission is different for different irradiation fluence, and the time increased with increasing the proton irradiation fluence. Long-lasting emission after the irradiation of protons with fluences of 6.8 × 10^<20> /m^2 is strongest in all conditions.
|
