IRIS : Charged particle reaction spectroscopy at ISAC

IRIS：ISAC 的带电粒子反应光谱

• 批准号: SAPPJ-2015-00033
• 负责人: Kanungo, Rituparna
• 金额: $ 10.93万
• 依托单位: Saint Mary's University
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=614420
• 关键词: IRIS; Charged; particle; reaction; spectroscopy

A large part of our universe is powered by nuclear reactions, that are the secret behind the glow of the sun and the shine of the stars. In our laboratories nuclear reactions and scattering are the ways to unearth the secrets that lie in the heart of the atom. This project focuses on exploring the isotopes with a large excess of neutrons over protons or vice versa, that possibly exist in certain environments of our universe such as supernovae, neutron stars etc. The ground breaking new discoveries about their unknown properties will become possible using the newly constructed facility IRIS at Canada's National Laboratory for subatomic physics, TRIUMF in Vancouver, BC. The IRIS facility has pioneered in the use of a thin ice sheet of solid hydrogen (i.e. hydrogen gas solidified directly) on a silver foil. This will allow us to unravel how nature creates the majority of the elements that we depend on today. The unexpected characteristics of these unstable nuclei make it necessary to seek answers to the fundamental question on how nature organizes the neutrons and protons to form a bound system and how do they behave at the limit when they become unbound.

我们宇宙的很大一部分是由核反应提供动力的，这是太阳发光和恒星发光背后的秘密。在我们的实验室里，核反应和散射是揭开隐藏在原子核心的秘密的方法。该项目的重点是探索可能存在于超新星、中子星等宇宙某些环境中的中子比质子多或反之亦然的同位素。利用位于不列颠哥伦比亚省温哥华的加拿大国家亚原子物理实验室新建造的IRIS设备，可能会有关于它们未知性质的突破性新发现。IRIS设施率先在银箔上使用了薄薄的固态氢(即直接凝固的氢气)冰层。这将使我们能够解开自然是如何创造我们今天所依赖的大多数元素的。这些不稳定核的意想不到的特性使得有必要寻求基本问题的答案，即自然如何组织中子和质子形成束缚系统，以及当它们变成非束缚时，它们在极限时如何表现。