搜索结果: 1-9 共查到“Xenon”相关记录9条 . 查询时间(0.082 秒)
新型探测器Xenon-1T帮助寻找暗物质
新型探测器 Xenon-1T 暗物质
2017/6/13
根据理论推测，宇宙大部分由不可见的“暗物质”组成，由于他们之间的引力才保持宇宙星系处于平衡状态。根据各种间接观测结果，科学家估计暗物质是正常物质的5倍以上，但迄今尚未获得有关暗物质存在的直接证据。寻找暗物质粒子是当今世界基础科学的一个重要前沿领域，欧洲、美国、中国的科学家竞争激烈。瑞士苏黎世大学近日举行新闻发布会称，该校参与的寻找暗物质的国际合作计划“Xenon-Kollaboration”在该领...
Pumping speed of cryopump for xenon
vacuum plume large-diameter external cryopump xenon pumping speed test
2015/8/11
The xenon pumping speed testing system of the large-diameter external cryopump was designed to meet the plume test requirements for prototype electric propulsion. The flowmeter method was utilized to ...
Simulations of a micro-PET System based on Liquid Xenon
micro-PET System Liquid Xenon Simulations PET images
2011/8/11
Abstract: The imaging performance of a high-resolution preclinical PET system employing liquid xenon as the gamma ray detection medium was simulated. The arrangment comprises a ring of detectors consi...
Scintillation-only Based Pulse Shape Discrimination for Nuclear and Electron Recoils in Liquid Xenon
Scintillation-only Pulse Shape Discrimination Nuclear Electron Recoils
2011/7/21
In a dedicated test setup at the Kamioka Observatory we studied pulse shape discrimination (PSD) in liquid xenon (LXe) for dark matter searches. PSD in LXe was based on the observation that scintillat...
NEST: A Comprehensive Model for Scintillation Yield in Liquid Xenon
Ionization and excitation processes Noble-liquid detectors Scintillators, scintillation and light emission processes Simulation methods and programs
2011/8/31
A comprehensive model for explaining scintillation yield in liquid xenon is introduced.We unify various definitions of work function which abound in the literature and incorporate all available data o...
Nuclear recoil scintillation and ionisation yields in liquid xenon from ZEPLIN–III data
Neutron scattering simulatton Neutron data
2011/8/29
Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr(nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources. The nuclear recoil d...
Xenon washout from the rabbit femur during short hyperbaric exposures
decompression hyperbaric Xenon elimination femur animal rabbit
2009/7/8
133Xenon washout from the femora of 5 anesthetized rabbits was recorded during short hyperbaric exposures (3 atm abs). Equipment tests showed that the scintillation counter was heat sensitive. The rec...
Low-Frequency NMR of Laser-Polarized Xenon on a Liquid Surface
High-power laser-diode Polarized xenon Surface NMR
2009/6/10
We have optically polarized the nuclear spin of xenon atoms using a frequency-narrowed high-power laser-diode. The free-induction signals of polarized xenon in gas and liquid phases were measured in a...
Xenon washout from the rabbit femur during short hyperbaric exposures
decompression hyperbaric Xenonelimination femuranimal rabbit
2009/3/23
133Xenon washout from the femora of 5 anesthetized rabbits was recorded during short hyperbaric exposures (3 atm abs). Equipment tests showed that the scintillation counter was heat sensitive. The rec...