TY - JOUR
T1 - Performance of neutron polarimeter SMART-NPOL
AU - Noji, S.
AU - Miki, K.
AU - Yako, K.
AU - Kawabata, T.
AU - Kuboki, H.
AU - Sakai, H.
AU - Sekiguchi, K.
AU - Suda, K.
N1 - Funding Information:
The authors would like to thank the RIKEN Ring Cyclotron crew for their help. The experiments were performed at RIKEN under program number R391n. They would also like to thank the R391n collaborators. This work is partially supported by Grant in Aid for Scientific Research no. 15340071 of the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2007/7/21
Y1 - 2007/7/21
N2 - 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 × 60 × 3.0 cm3. Polarimetry measurements were made using the analyzing power of the 1H (over(n, ⇒), n) 1H reaction occurring in the plastic scintillators. The effective analyzing power of SMART-NPOL was measured with polarized neutrons from the zero-degree 6Li (over(d, ⇒), over(n, ⇒)) reaction with an incident deuteron energy of 135 MeV / A. The effective analyzing power thus obtained was 0.26 ± 0 . 01stat ± 0 . 03syst and the double scattering efficiency was 1.1 × 10- 3.
AB - 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 × 60 × 3.0 cm3. Polarimetry measurements were made using the analyzing power of the 1H (over(n, ⇒), n) 1H reaction occurring in the plastic scintillators. The effective analyzing power of SMART-NPOL was measured with polarized neutrons from the zero-degree 6Li (over(d, ⇒), over(n, ⇒)) reaction with an incident deuteron energy of 135 MeV / A. The effective analyzing power thus obtained was 0.26 ± 0 . 01stat ± 0 . 03syst and the double scattering efficiency was 1.1 × 10- 3.
KW - Neutron polarimeter
KW - Position sensitive detector
KW - Time of flight
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U2 - 10.1016/j.nima.2007.05.149
DO - 10.1016/j.nima.2007.05.149
M3 - Article
AN - SCOPUS:34347361732
VL - 578
SP - 267
EP - 278
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1
ER -