Performance of neutron polarimeter SMART-NPOL

✍ Scribed by S. Noji; K. Miki; K. Yako; T. Kawabata; H. Kuboki; H. Sakai; K. Sekiguchi; K. Suda

• Book ID: 104066312
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 603 KB
• Volume: 578
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2007.05.149

✦ Synopsis

The neutron polarimeter SMART-NPOL has been constructed at the RIKEN Accelerator Research Facility for measuring polarization correlations of proton-neutron systems. The SMART-NPOL system consists of 12 parallel neutron counter planes of two dimensionally position-sensitive plastic scintillators with a size of 60 Â 60 Â 3:0 cm 3 . Polarimetry measurements were made using the analyzing power of the 1 Hðñ; nÞ 1 H reaction occurring in the plastic scintillators. The effective analyzing power of SMART-NPOL was measured with polarized neutrons from the zero-degree 6 Lið d; ñÞ reaction with an incident deuteron energy of 135 MeV=A. The effective analyzing power thus obtained was 0:26 AE 0:01 stat AE 0:03 syst and the double scattering efficiency was 1:1 Â 10 À3 .