The self-calibration of a retarding-type Mott spin polarimeter with a large collection angle

Autor: K. Iori, Kazuaki Sakamoto, Koji Miyamoto, Shan Qiao, Hisashi Narita, Akio Kimura, Hirofumi Namatame, Masaki Taniguchi, Kenya Shimada
Rok vydání: 2006
Předmět:
Zdroj: Review of Scientific Instruments. 77:013101
ISSN: 1089-7623
0034-6748
DOI: 10.1063/1.2162752
Popis: We have developed a compact retarding-type Mott spin polarimeter with a large collection angle at the Hiroshima Synchrotron Radiation Center and obtained a reliable value of the effective Sherman function by a self-calibration method. The spin polarization of secondary electrons was evaluated by extrapolation of the left-right scattering asymmetry at the zero energy-loss limit, which enabled us to obtain the effective Sherman function (Seff) and the figure of merit of our polarimeter at different operating conditions.
Databáze: OpenAIRE