The design of a fast-neutron (E > 1MeV) irradiation facility, devoted to investigating neutron-induced Single Event Effects in microelectronic devices and systems, is under development at the 70 MeV, 0.7mA SPES proton cyclotron at LNL (Legnaro, Italy). Here we report on the progress in the design of ANEM (Atmospheric-Neutron EMulator): a water-cooled rotating target capable of producing neutrons with an energy spectrum similar to that of the neutrons present at sea level. In ANEM the protons from the cyclotron alternatively impinge on two circular sectors of Be and W of different areas; the effective neutron spectrum is a weighted combination of the spectra from the two sectors. Thermalmechanical Finite Element Analysis calculations of the performance of the ANEM prototype indicate that ANEM can deliver fast neutrons with an atmospheric-like energy spectrum in the 1-65MeV energy range with a maximum integral flux On (1-65 MeV) ∼ 107 n cm-2s-1 at 6m from the target, a very competitive value for Single Event Effects testing.
ANEM: The future neutron production target for Single Event Effect studies at LNL
WYSS, JEFFERY
2015-01-01
Abstract
The design of a fast-neutron (E > 1MeV) irradiation facility, devoted to investigating neutron-induced Single Event Effects in microelectronic devices and systems, is under development at the 70 MeV, 0.7mA SPES proton cyclotron at LNL (Legnaro, Italy). Here we report on the progress in the design of ANEM (Atmospheric-Neutron EMulator): a water-cooled rotating target capable of producing neutrons with an energy spectrum similar to that of the neutrons present at sea level. In ANEM the protons from the cyclotron alternatively impinge on two circular sectors of Be and W of different areas; the effective neutron spectrum is a weighted combination of the spectra from the two sectors. Thermalmechanical Finite Element Analysis calculations of the performance of the ANEM prototype indicate that ANEM can deliver fast neutrons with an atmospheric-like energy spectrum in the 1-65MeV energy range with a maximum integral flux On (1-65 MeV) ∼ 107 n cm-2s-1 at 6m from the target, a very competitive value for Single Event Effects testing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
