CRYOPAD on the triple-axis spectrometer TAS-1 at JAERI

Takeda, Masayasu  ; Nakamura, Mitsutaka; Kakurai, Kazuhisa; Lelivre-Berna, E.*; Tasset, F.*; Regnault, L.-P.*

It is now well known that CRYOPAD (CRYOgenic Polarization Analysis Device) is a powerful device which enables us to investigate the spherical changes of neutron-spin polarization in the scattering processes of magnetic materials. ILL and CEA-Grenoble, in the framework of EC/ENPI, and JAERI, in the framework of the MoU between ILL and ASRC JAERI, initiated to assemble three third generation CRYOPADs at ILL (CRYOPADUM project), optimized both for elastic and inelastic neutron scattering. One is installed on the ILL instrument D3 (Millennium Project) and the other on the CEA-Grenoble instrument IN22. The JAERI CRYOPADUM is installed on the triple-axis spectrometer TAS-1 at JRR-3 and is now in commissioning with powerful data acquisition software implanted from D3. We present the status of the CRYOPADUM on TAS-1 at JAERI and describe some of the planned experiments.