描述了大屏幕液晶电视图像画质的改善。在屏幕尺寸上已经超过C R T的液晶电视,即使屏幕尺寸达到60英寸,也可以实现全屏100%亮度的高水准。另一方面,高亮度和大尺寸屏幕使液晶电视在图像画质方面存在的问题变得更加明显,因此应当对它们...描述了大屏幕液晶电视图像画质的改善。在屏幕尺寸上已经超过C R T的液晶电视,即使屏幕尺寸达到60英寸,也可以实现全屏100%亮度的高水准。另一方面,高亮度和大尺寸屏幕使液晶电视在图像画质方面存在的问题变得更加明显,因此应当对它们加以解决。例如可见轮廓、动画模糊以及M PEG压缩引起的图像压缩失真及其补偿算法都将在本文中描述。展开更多
The rare radioactive-isotope(RI)ring is an isochronous storage ring for deriving the masses of extremely short-lived rare RIs.Since the successful commissioning experiment in 2015,the time of flight mass measurement t...The rare radioactive-isotope(RI)ring is an isochronous storage ring for deriving the masses of extremely short-lived rare RIs.Since the successful commissioning experiment in 2015,the time of flight mass measurement technique has been established through test experiments using unstable nuclei with well-known masses.The experiments for unknown masses were started in 2018.While conducting experiments,we continue to develop equipment to further improve the efficiency and precision of mass measurements.The upgraded kicker system can generate a magnetic field with an extractable duration equivalent to the revolution time of the ring.This is essential for extracting extremely rare events as well as shortening the measurement time compared with that in the initial experiments.New steering magnets make it possible to eliminate an uncertain vertical beam deviation that occurs upstream.As a result,we confirm that the extraction yield is increased.A new resonant Schottky pick-up is able to detect single particles in timeframes on the order of milliseconds.It will be useful not only for beam diagnostics but also for lifetime measurement experiments of extremely short-lived rare RIs planned as a future application.展开更多
文摘描述了大屏幕液晶电视图像画质的改善。在屏幕尺寸上已经超过C R T的液晶电视,即使屏幕尺寸达到60英寸,也可以实现全屏100%亮度的高水准。另一方面,高亮度和大尺寸屏幕使液晶电视在图像画质方面存在的问题变得更加明显,因此应当对它们加以解决。例如可见轮廓、动画模糊以及M PEG压缩引起的图像压缩失真及其补偿算法都将在本文中描述。
基金Supported by RIKEN Pioneering Project funding and JSPS KAKENHI(17H01123,18H03695,21H04461,23K25876.)。
文摘The rare radioactive-isotope(RI)ring is an isochronous storage ring for deriving the masses of extremely short-lived rare RIs.Since the successful commissioning experiment in 2015,the time of flight mass measurement technique has been established through test experiments using unstable nuclei with well-known masses.The experiments for unknown masses were started in 2018.While conducting experiments,we continue to develop equipment to further improve the efficiency and precision of mass measurements.The upgraded kicker system can generate a magnetic field with an extractable duration equivalent to the revolution time of the ring.This is essential for extracting extremely rare events as well as shortening the measurement time compared with that in the initial experiments.New steering magnets make it possible to eliminate an uncertain vertical beam deviation that occurs upstream.As a result,we confirm that the extraction yield is increased.A new resonant Schottky pick-up is able to detect single particles in timeframes on the order of milliseconds.It will be useful not only for beam diagnostics but also for lifetime measurement experiments of extremely short-lived rare RIs planned as a future application.
