easurement of 99 Mo production with the high-energy neutron enerated through 65MeV p+Be reaction on nat Mo target Be target 65MeV proton Stack of metal pellets Mo Pellet 10mmφ x 2mm 1.6 gr Ni Pellet 10mmφ x 5mm 1 μA Beam on : 2010.7.31, 15:00 Beam off : 2010.7.31, 15:30 γ-ray counting : 2010.8.3, 18:30 〜 20:00 Counting time 300sec Detector: Ge Efficiency: 0.62% for 142-kev – γray from 99 Tc m [from a parasite experiment to the ASEAN-students program at RCNP ] by Hoang Van Khanh, M.Taniguchi, Ong Hooi Jin and K. Nakai 142-kev –ray 100cps ility Test for Production of 99 Mo via Accelerator Ne A Primitive Experiment
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Measurement of 99 Mo production with the high-energy neutrons
Feasibility Test for Production of 99 Mo via Accelerator Neutrons. A Primitive Experiment. Measurement of 99 Mo production with the high-energy neutrons generated through 65MeV p+Be reaction on nat Mo target. Be target. Stack of metal pellets. 65MeV proton. - PowerPoint PPT Presentation
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Measurement of 99Mo production with the high-energy neutronsgenerated through 65MeV p+Be reaction on natMo target
Be target
65MeV protonStack of metal pellets
Mo Pellet10mmφ x 2mm1.6 gr
Ni Pellet10mmφ x 5mm
1 μA
Beam on : 2010.7.31, 15:00Beam off : 2010.7.31, 15:30
γ-ray counting : 2010.8.3, 18:30 〜 20:00 Counting time 300sec Detector: Ge Efficiency: 0.62% for 142-kev –γray from 99Tcm
[from a parasite experiment to the ASEAN-students program at RCNP ] by Hoang Van Khanh, M.Taniguchi, Ong Hooi Jin and K. Nakai
142-kev –ray
100cps
Feasibility Test for Production of 99Mo via Accelerator Neutrons
A Primitive Experiment
Enhancement Factors (towardsGBq)
(1)x20 bombarding time 0.5hr → 10hr
(2)X5 Mo-target 10mm thick [1 MBq ]
(3)X1000 1mA proton beam [1 GBq ]
How to get mA proton beam.
(1)30MeV 1.5mA beam exists at KUR
(2)J-PARC Injector ???
(3)New Accelerator at the cost of 6 億円 (+5 億円 for building)
⇧ ⇧ ⇧ ⇧ comparable to the cost for importing100Mo 〜 20億円 /年
Summary of the ASEAN-students experiment
Radioactivity of the first Mo pellet(1.6gr) about one half life after 30 min irradiation toneutrons generated through 65MeV 1μA Proton bombardment on the Be thick target was:
100cps/0.62% = 1.6x104 dps =16kBq 10 kBq/(gr of natural Mo metal) ☞