Community Research and Development Information Service - CORDIS

Abstract

For the last six years we examined the use of a spallation neutron source (SNS) as a European alternative to the US fusion materials irradiation test facility (FMIT) whose parameters are: (I) linear accelerator: 35 MeV, 100 mA deuteron beam on a liquid, lithium target; (II) irradiation parameters: 83 displacements per atom per year in 10 cm**3, 11 He/appm/dpa. For an optimized spallation neutron source design we find now for the same beam power as FMIT the following design parameters: (i) linear accelerator: 600 MeV, 6MA proton beam on liquid lead target; (ii) irradiation parameters: 320 dpa/year in 20 cm**3 or 274 dpa/year in 31.5 cm**3., 6<He appm/dpa <or= 13.**2 If we compare FMIT with an optimized spallation neutron source we arrive at the following figure of merit: FM = (dpa. volume) SNS-/(dpa.volume) FMIT = (274x31.5)/(83 x 10) approximately equal 10.4. The present conceptual spallation neutron source target would allow us to use a 1200 MeV, 20 mA proton beam, if required. The Ispra SNS target station will be designed for these parameters. For synergetic experiments concerning fatigue and radiation damage the continuous proton beam will be periodically deflected on the target: "TRIANGLE" = 9 sec, f = 10**-1 sec --RU1 in order to simulate the pulsed mode of Tokamak power reactors. The deflected beam can be used for other experiments.

Additional information

Authors: KLEY W, JRC ISPRA ESTAB. (ITALY);BISHOP G R JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: EUR 9753 EN (1986) FS, 14 P., BFR 200, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989125016000 / Last updated on: 1987-02-01
Category: PUBLICATION
Available languages: en