The cluster target system was installed to the due position last year. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the insta...The cluster target system was installed to the due position last year. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the installation and collimation of cluster internal target. However, there are two problems which hinder us from going further. One is the blocking of nozzle which results in the failure of a long-term system running; the other is the low pumping power for Hydrogen gases in the first stage of the cluster source cham-展开更多
The cluster target is one of two operation modes of HIRFL-CSR internal target system. The cluster beam is obtained by cooling a supersonic gas-jet. The cluster target has been finished and installed to the due positio...The cluster target is one of two operation modes of HIRFL-CSR internal target system. The cluster beam is obtained by cooling a supersonic gas-jet. The cluster target has been finished and installed to the due position. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the installation and collimation of cluster internal target.展开更多
基金Supported by the National Natural Science Foundation of China (10304019, 10134010 and 10375080)
文摘The cluster target system was installed to the due position last year. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the installation and collimation of cluster internal target. However, there are two problems which hinder us from going further. One is the blocking of nozzle which results in the failure of a long-term system running; the other is the low pumping power for Hydrogen gases in the first stage of the cluster source cham-
文摘The cluster target is one of two operation modes of HIRFL-CSR internal target system. The cluster beam is obtained by cooling a supersonic gas-jet. The cluster target has been finished and installed to the due position. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the installation and collimation of cluster internal target.
