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Adelphi technology inc. Experiments and simulations using a high flux DD neutron generator 1 J. H. Vainionpaa 1, A. X. Chen 1, M. A. Piestrup 1, C. K.

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Presentation on theme: "Adelphi technology inc. Experiments and simulations using a high flux DD neutron generator 1 J. H. Vainionpaa 1, A. X. Chen 1, M. A. Piestrup 1, C. K."— Presentation transcript:

1 Adelphi technology inc. Experiments and simulations using a high flux DD neutron generator 1 J. H. Vainionpaa 1, A. X. Chen 1, M. A. Piestrup 1, C. K. Gary 1, G. Jones 2, R. H. Pantell 3, S. Custodero 4 http://www.adelphitech.com/ 1)Adelphi technology, 2003 E. Bayshore Rd. 94061, Redwood City, CA, USA 2)G&J Enterprice, 7486 Brighton Ct, Dublin CA 94568, United States 3)Department of Electrical Engineering, Stanford University, Stanford CA, United States 4)EUROSEA Committee, c/o Envipark S.p.A. via Livorno 60 I-10144 Turin, Italy

2 Adelphi technology inc. Adelphi Technology, Inc. 2 Radial Design Neutron Generator Moderator Shielding Reflector Neutron Generators Fast neutron sources pointed inwardly toward moderator and patient

3 Adelphi technology inc. Adelphi Technology, Inc. 3 Therapeutic Ratio: Radial vs. Single Beam Source

4 Adelphi technology inc. DD110MB

5 Adelphi technology inc. DD110MB

6 Adelphi technology inc. DD110MB features 4x Over-dense off resonance ECR ion source High D + 1 fraction High current density 80-200mA/cm 2 90-120kV, 70-95mA Deuterium beam 4x flat neutron production faces around central sample and moderator cavity Sample and moderator next to target Power consumption ~15kW Neutron flux at sample expected to reach 5-7e7 n/(s-cm 2 ) Modification to reflector and moderator materials/geometries easy to do Prize tag 400-600k$ Useful for small animal testing 6-12month lead time Multi-head dose uniform over large volumes compared to single source setups

7 Adelphi technology inc. Four ion beams with central moderator

8 Adelphi technology inc. Moderator thickness for various materials Assumes total Yield is 10 11 n/s

9 Adelphi technology inc. DD110MB MCNP simulations

10 Adelphi technology inc. Neutron Spectrum Epithermal moderator Current moderator

11 Adelphi technology inc. DD110MB MCNP simulations MCNP estimated thermal neutron flux is 6.7x10 7 n/(s-cm 2 ) Reflector materialFlux (<0.5eV) @ sample Steel6.7x10 7 Graphite6.8x10 7 Ni7.0x10 7 HDPE6.2x10 7 Be7.3x10 7 Sample hole filled HDPE 8.1x10 7 Isotropic neutron flux 5.7x10 7

12 Adelphi technology inc. DD110MB Activation experiment Estimated thermal (<0.5eV) flux from Au activation 2.7e7 n/(cm 2 -s) Gold foil experiment By comparing the activation against known Cf source the estimated yield is ~5e7 n/(cm 2 -s) Salt experiment

13 Adelphi technology inc. Future developments 10 12 -10 13 generators High yield single beam systems Partners with strong medical background

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