Principle Investigators Suzanne V Smith CAD, BNL

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Presentation transcript:

Principle Investigators Suzanne V Smith CAD, BNL Production of High Specific Activity 72As, 77As and 67Cu for Research and Clinical Applications: Effective design and recycling of targets and radioisotope separation. Principle Investigators Suzanne V Smith CAD, BNL Silvia Jurisson, University of Missouri ≈$1.2 million over 2 years

Project 1: Production of high specific activity 67Cu moderate energy protons ( 43 MeV): Reduce - 3 column to < 2 columns and simultaneously recycle enriched 68Zn. Project 2: Accelerator production of 72As using protons of moderate energy (~50 MeV): To design natAs target - robust at high proton currents for 72As (p, 4n) 72Se reaction; and Assess radiation stability of 72Se/72As generator system for up to 50 mCi of 72Se. Project 3: Reactor production of high specific activity 77As: Produce therapeutic matched pair for the diagnostic 72As. Project 4: Development of no carrier added radioarsenic (72/77As) precursor:

Current Process – Challenge for 67Cu Project No. 1 Current Process – Challenge for 67Cu Production rate of 64Cu is >> 67Cu at 100 – 118 MeV

Excitation Function for Production of 67Cu using protons Project No. 1 Excitation Function for Production of 67Cu using protons Current energy range used New energy

High Specific Activity 72As (BNL and MU) Project 2: High Specific Activity 72As (BNL and MU) Arsenic-72 (half-life 26 h) - positron emitting daughter of 72Se (8.5 d) Generator style production of 72As. Proton irradiation of natural As is preferred for production of 72Se.

Challenge - Design of Target Material for BLIP ?? Project 2: Challenge - Design of Target Material for BLIP ?? Alloys of As and Copper (i.e. Cu3As) have been produced in an effort to stabilize arsenic from volatilization during irradiation. The final choice will depend on the heat load calculations and ease of chemical conversion to desired 72Se form

Collaboration Opportunities Funding independent of normal BLIP/RHIC funds. Dedicated Beam Time Targetry Design - canning; machining; loading; target arrays Modelling - heat calculations - MCNPX calculations for comparison with Empire Materials – target cans Automating processes. Suzanne@bnl.gov