| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
The neutron energy spectra of carbon, iron, and gold targets with 140 MeV protons at 180° were measured at the RCNP cyclotron facility using the time-of-flight technique. Experimental neutron energy spectra at 180° were composed of two evaporation Maxwellian-type components (in two neutron energy regions of 1-4 MeV and 4-10 MeV) and a pre-equilibrium (in the neutron energy region above 10 MeV) Maxwellian-type component. All experimental spectra were fitted well by the sum of three Maxwellian-type equations across the entire energy region of the neutrons.
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