@article{oai:nagoya.repo.nii.ac.jp:00011665,
 author = {丹生, 越子 and Niu, Etsuko},
 journal = {名古屋大学加速器質量分析計業績報告書},
 month = {Mar},
 note = {TANDETRON II (Model-4130 AMS, HVEE) in Nagoya University is an accelerator mass spectrometer for the ^<14>C dating. Getting over numbers of trouble, the performance test was done in January 1999. However, we could not place it straightway at the regular service, suffering from successive big troubles happened after that test. We restarted the measurement from the beginning of November 1999. After the checking of total systems by HVEE engineer in September 2000,no big trouble on the machine came in 2001,so we applied ourselves to the routine measurement whose procedure was established in 2000.The operation status in 2001 is shown in Table 1. The number of targets measured in 2001 was 2077 targets/year or 173 targets/month. In our routine procedure, it takes one week to measure 45 targets (32 samples and 13 standards). Total measurement time was 3232 hours/year and 269 hours/month in that period. The monthly number of measured targets in 2001 and the yearly change in these 3 years are shown in Fig. 1 and Fig. 2,respectively. It is since 6 years from the installation of the machine, or 4 years from the starting of its practical service. Hereafter, we should be careful to the deterioration or the aging of each part, to hold the machine ever in good condition. More careful and foreseeing measures of maintenance should be devised to avoid any destructive trouble. We aim to measure steadily target-by-target as carefully as possible to fit the condition of each sample, rather than forcing to increase a number of measured targets., 第14回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成13 (2001)年度)報告},
 pages = {21--28},
 title = {名古屋大学タンデトロン2号機の現状},
 volume = {13},
 year = {2002}
}