Negative-ion Research and Source Development

负离子研究与源开发

• 批准号: 9417364
• 负责人: Roy Middleton
• 金额: --
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9417364&HistoricalAwards=false
• 关键词: Negative; ion; Research; Source; Development

9417364 Middleton This award will support and maintain the negative-ion source and AMS development program at the University of Pennsylvania for a period of three years. The principal objective of the program are: (1) to extend the present studies of polyatomic and molecular ions that are currently underway with carbon and aluminum. In particular, to search for new double-negative clusters, utilizing the methods developed to detect and veridy double-negative clusters of carbon by acceleration in the tandem Van de Graaff accelerator. (2) to revise, expand, and prepare the Negative Ion Cookbook for formal publication. Much new data would be included on polyatomic and molecular ions and on the negative-ion signatures of some common compounds and minerals. (3) Continue to develop the triode source that is expected to produce an order of magnitude more current than the present high-intensity source. The availability of such a source will have impact in several fields including nuclear science where it should enable higher intensity relativistic heavy-ion beams to be accelerated in RHIC. (4) develop new techniques for accelerator mass spectroscopy (AMS). ***

9417364米德尔顿该奖项将支持和维护在宾夕法尼亚大学的负离子源和AMS开发计划为期三年。 该计划的主要目标是：（1）扩展目前正在进行的碳和铝的多原子和分子离子的研究。 特别是利用串列式货车德格拉夫加速器对碳原子双负团簇的探测和验证方法，寻找新的双负团簇。 (2)修订、扩充和准备《负离子食谱》，以便正式出版。 许多关于多原子和分子离子以及一些常见化合物和矿物的负离子特征的新数据将被包括在内。 (3)继续开发预期将产生比目前高强度源大一个数量级的电流的高强度源。这种源的可用性将在包括核科学在内的几个领域产生影响，在这些领域，它将使更高强度的相对论重离子束在RHIC中加速。 (4)开发加速器质谱（AMS）的新技术。***