title: (47)Ca production for (47)Ca/(47)Sc generator system using electron linacs.
abstract: In this work we have studied the feasibility of photonuclear production of (47)Ca from (48)Ca for (47)Ca/(47)Sc generators. Photon flux distribution for electron beams of different energies incident on a tungsten converter was calculated using the MCNPX radiation transport code. The (47)Ca production rate dependence on electron beam energy was found and (47)Ca/(47)Sc yields were estimated for a 40MeV electron beam. It was shown that irradiating enriched targets with a 40MeV, 1mA beam will result in tens of MBq g(-1) (few mCi g(-1)) activity of (47)Sc. The results of the simulations were benchmarked by irradiating 22.5g of CaCl2 powder with a 39MeV electron beam incident on a tungsten converter. Measured (47)Ca/(47)Sc activities were found to be in very good agreement with the predictions.
authors.affiliation: Idaho State University, Idaho Accelerator Center, Pocatello, ID 83201, USA; Waste Control Specialists, Dallas, TX 75240, USA.
authors.forename: Shraddha
authors.initials: S
authors.lastname: Rane
authors.affiliation: Idaho State University, Department of Nuclear Engineering and Health Physics, Pocatello, ID 83209, USA.
authors.forename: Jason T
authors.initials: JT
authors.lastname: Harris
authors.affiliation: Idaho State University, Idaho Accelerator Center, Pocatello, ID 83201, USA; Niowave Inc., Lansing, MI 48906, USA. Electronic address: valeriia@niowaveinc.com.
authors.forename: Valeriia N
authors.initials: VN
authors.lastname: Starovoitova