| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
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| Research Abstract |
A miniature X-ray source using electron emission from a pyroelectric crystal excited by a laser light was developed without an external high voltage power supply. Electron emission from the crystal and X-ray generation from the counter electrode were observed with a continuous wave (CW) infra-red (IR) laser light. The peak and average X-ray yields using a 0.89 W CW Neodymium-doped yttrium lithium fluorides (Nd:YLF) laser light were 234 and 78 MBq, respectively, while those using a 5 W CW fiber laser light were 9.8 and 3.2 times higher than those using a CW Nd:YLF laser light. The miniature X-ray source capsule was designed for mounting on an endoscope.
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