The Direct Spectroscopy of Positronium Hyperfine Structure Using a Sub-THz Gyrotron

Increase in the beam intensity of the linac-based slow positron beam and its application at the Slow Positron Facility, KEK

(2012) K. Wada et al.   EUROPEAN PHYSICAL JOURNAL D

Direct Measurement of Positronium HyperFine Structure: ∼ A New Horizon of Precision Spectroscopy Using Gyrotrons ∼

(2012) Shoji Asai et al.   Journal of Infrared Millimeter and Terahertz Waves

Development of a kW Level-200 GHz Gyrotron FU CW GI with an Internal Quasi-optical Mode Convertor

(2012) Yoshinori Tatematsu et al.   Journal of Infrared Millimeter and Terahertz Waves

Development and Applications of High—Frequency Gyrotrons in FIR FU Covering the sub-THz to THz Range

(2012) Toshitaka Idehara et al.   Journal of Infrared Millimeter and Terahertz Waves

Direct Observation of the Hyperfine Transition of Ground-State Positronium

(2012) T. Yamazaki et al.   PHYSICAL REVIEW LETTERS

Positronium Hyperfine Interval Measured via Saturated Absorption Spectroscopy

(2012) D. B. Cassidy et al.   PHYSICAL REVIEW LETTERS

Frequency tunable gyrotron using backward-wave components

(2009) T. H. Chang et al.   JOURNAL OF APPLIED PHYSICS

Progress of high power 170 GHz gyrotron in JAEA

(2009) Keishi Sakamoto et al.   NUCLEAR FUSION