Helium liquefier for human brain magnetometry

蒙特利尔大学（UoM）脑磁图（MEG）实验室能够对人类大脑进行尖端的非侵入性功能成像。 UoM最先进的MEG系统能够测量大脑活动，与其他基于血流动力学反应的非侵入性成像技术相比，该系统提供了精致的时间分辨率，具有比EEG更优越的上级空间分辨率。 UoM MEG实验室可以进行一系列基础研究，包括睡眠，感知，认知，记忆，注意力，决策的基本大脑机制，在正常和异常发育和衰老的各个阶段。 应用包括理解感觉剥夺中大脑可塑性的机制，损伤后（例如，脑震荡）或各种神经系统疾病。 MEG实验室迫切需要氦（He）恢复和液化系统，以优化学生支持，科学工作人员而不是He的赠款资金的使用。 MEG实验室，这是由许多高生产力的认知神经科学研究人员和他们的学员使用，目前需要每周120升的液体氦，在相当大的费用。 通过购买液化设备，这些成本可以降低80%以上，这将节省大量运营成本，减少不可再生He资源的使用，并更好地利用资金，特别是用于HQP的培训。

The University of Montreal (UoM) Magnetoencephalography (MEG) Laboratory enables cutting-edge non-invasive functional imaging of the human brain. The state-of-the-art MEG system at UoM enables measurements of brain activity that offers exquisite temporal resolution in comparison with other non-invasive imaging techniques based on the hemodynamic response, with superior spatial resolution than EEG. The UoM MEG lab enables a range of basic research including fundamental brain mechanisms of sleep, perception, cognition, memory, attention, decision making, at various stages of normal and abnormal development and aging. Applications include understanding mechanisms of brain plasticity in sensory deprivation, following injury (e.g., concussion), or various neurological disorders. The MEG Lab has an urgent need for a helium (He) recuperation and liquefaction system to optimize use of grant funds for student support, scientific staff, rather than He. The MEG Lab, which is used by numerous highly-productive cognitive neuroscience researchers and their trainees, presently requires 120L of liquid He per week, at considerable expense. These costs could be reduced by more than 80% with the purchase of liquefaction equipment, which would enable major operating cost savings and a reduction in the use of non-renewable He resources, and a better use of funds, in particular for the training of HQP.