Recent results at the SIRa test bench: Diffusion properties of carbon graphite and B4C targets
✍ Scribed by F. Landré-Pellemoine; J.C. Angelique; O. Bajeat; C. Barué; R. Bennett; F. Clapier; M. Ducourtieux; G. Gaubert; S. Gibouin; Y. Huguet; P. Jardin; S. Kandri-Rody; C. Lau; N. Lecesne; R. Leroy; M. Lewitowicz; R. Lichtenthäler; C. Marry; L. Maunoury; J. Obert; N.A. Orr; J.Y. Pacquet; M.G. Saint-Laurent; C. Stodel; J.P. Rataud; A.C.C. Villari
- Book ID
- 104335411
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 54 KB
- Volume
- 701
- Category
- Article
- ISSN
- 0375-9474
No coin nor oath required. For personal study only.
✦ Synopsis
The diffusion properties of graphite targets with 1, 4 and 15 microns microstructure has been measured for He and Ar isotopes. An important enhancement of the diffusion efficiency for the smaller microstructure is observed. A releasing efficiency of the order of 100% was obtained for 6 He (T 1/2 = 806 ms) at a temperature of 1600 K. The diffusion and production properties of He isotopes in a target of B 4 C (boron carbide) have also been studied. Yields of 1.4 × 10 8 pps and 5.0 × 10 5 pps for 6 He and 8 He has been obtained.