CAJ | 학술논문

铷光谱灯是铷原子钟的核心部件。在铷光谱灯的研制中差式扫描量热技术( DSC)是不可或缺的测量手段和研究方法之一。本文通过对长期老化跟踪测量的铷量消耗数据拟合，得到了目前使用的铷灯的铷量消耗模型。分析结果显示：铷与灯泡内的杂质反应消耗了约37.5μg金属铷，铷的消耗率稳定在0.23μg/ hr ，预计10年使用寿命期内铷的消耗量约106μg。铷熔融曲线的熔点和纯度测量结果显示：铷的熔点和纯度在老化开始前2个月变化明显，具有较好的相关性。老化6个月以后铷的熔点和纯度从老化开始前的36℃和99.56%提高到39.5℃和99.84%，并趋于稳定，其变化趋势与老化初期铷量的消耗规律较好地吻合。
여광보등시여원자종적핵심부건。재여광보등적연제중차식소묘량열기술( DSC)시불가혹결적측량수단화연구방법지일。본문통과대장기노화근종측량적여량소모수거의합，득도료목전사용적여등적여량소모모형。분석결과현시：여여등포내적잡질반응소모료약37.5μg금속여，여적소모솔은정재0.23μg/ hr ，예계10년사용수명기내여적소모량약106μg。여용융곡선적용점화순도측량결과현시：여적용점화순도재노화개시전2개월변화명현，구유교호적상관성。노화6개월이후여적용점화순도종노화개시전적36℃화99.56%제고도39.5℃화99.84%，병추우은정，기변화추세여노화초기여량적소모규률교호지문합。
The rubidium ( Rb ) spectral lamp is the critical component of Rb gas cell atomic fre-quency standard. As a measuring tool and research method the differential scanning calorimetry technique was indispensable in the manufacture of rubidium spectral lamp. Through fitting the rubidium consump-tion data obtained by Long-term tracing measurement, the consumption model of a rubidium spectral lamp used currently was established. The analysis result shows that the reactive loss of Rb consume about 37. 5μg metal rubidium, The speed of rubidium consumption maintain constant at 0. 23 microgram per square root of hour. The predicted total rubidium consumption in the ten years lifetime is about 106μg. The measurment result of melting point and purity of rubidium in lamp show that in the first two months, the melting point and purity change sharply with close relativity. After six months aging time, the melting point and purity of rubidium reach at 39 . 5℃ and 99 . 8% from initial 36℃ and 99 . 5% which is fit to the trend of rubidium consumption.