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Niowave’s Domestic Production of Mo-99 from LEU without a Nuclear Reactor
Niowave, Inc.Lansing MI
May 2018Presented at the Mo-99 Stakeholders Meeting
Washington, DC
This document contains Niowave Proprietary Data. Not for release without prior written permission from Niowave.
Outline
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• Superconducting Linacs and Their Applications• Mo-99 Production from LEU
– Uranium Target Assembly– Uranium Targets – Isotope Separation (LMC and UREX)– Uranium Recycling
• Future Steps
Niowave’s Commercial Markets
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Sterilization & Advanced ManufacturingEliminate dirty bomb material
Medical & Industrial RadioisotopesDomestic supply without nuclear reactor or highly-enriched uranium
Nuclear Energy Advanced TechnologiesDomestic fast neutron irradiation and advanced reactor development
< 9 MeV
> 9 MeV
9 MeV
Supe
rcon
duct
ing
Elec
tron
Lina
cs
Radiography & Active InterrogationCargo inspection for contraband and shielded nuclear bombs
> 9 MeV
Superconducting Linac Facility
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Turn-key Systems • Superconducting Linac• Helium Cryoplant• Microwave Power• End Station• Licensing
End Stations
Beam Energy 1-40 MeV
Average Beam Power 10-100 kWDuty Cycle 10-100%Closed-loop Cooling Capacity
40-110 W @ 4 K
Isotope Production Flowchart
• 10 kg LEU will be processed each week• 10 kCi of Mo-99 per week
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LEUtargets
Target FabricationLEU
LEU
targetsSuperconducting Electron Linac
Rad
ioch
emis
try
Mo-99I-131Xe-133FF
Waste
LEU
Subcritical Assembly
(UTA)
UTA Characterization
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Cf-252 port
He-3 sphere
Li-6 panel (silverside)
UTA
HPGe
NaI
Stilbene scintillator (UMich)
Instrument rod (i.e. gold foil activation
Volatile gas extraction module
NU LEU
Neutron source coupler
• Commissioning and characterization of UTA and instrumentation system• Validate computer models and simulations
UTA Driven by a Linac
Successfully operational fully coupled system:– Superconducting linac coupled to UTA– Neutron production verified and validated– Mo-99 and other FF are produced
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UTA
Two-pass Accelerator UTA
X-ray converter (second end station)
LEU Acquisition and Target Preparation
Natural uranium– 345 kgU (metal and oxide) at
Niowave
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Low Enriched Uranium (<20 wt% 235U)– 1.8 kgU oxide at Niowave– 18 kgU metal purchased from Y-12/NNSA
LEU pellets LEU pellets
Aluminum cladding
NU pellets
Mo-99 Extraction
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• Working with ANL since 2015:– Training Niowave’s staff – Helping to establish a radiochemistry facility at Niowave– Assisting in improving the efficiency of separation and scaling up the processes
Training at ANL facility
Performing LMC at Niowave facility
Uranium Recovery and Target Preparation
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• Working with Y-12 since 2017:– UREX– Mechanical pressing of uranium oxide powder
Pellet pressing
Uranium denitration
Uranium oxide powder
Pressed pellets are loaded for re-irradiation
Na2MoO4 and Xe samples
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Mo-99739 keV
Mo-99778 keV
Tc-99m141 keV
Mo-99181 keV Mo-99
366 keV
Xe-1382016 keV
Xe-1381768 keV
Xe-135250 keV
Xe-138258 keV
Kr-882196 keV
Kr-882392 keV
Na2MoO4 is packaged for shipment
Xe-135m527 keV
Future Steps
• Niowave will continue work with Y-12 and ANL to improve and scale up our processes
• In the next 2 years we will be producing:– 10 Ci per week of Mo-99 and Xe-133– 10 Ci of other beta emitting fission fragments
• Revenue from therapeutic beta emitters:– Coproduced during uranium fission– Will fund scale up to 10 kCi/week
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