公开(公告)号：US10338236B2

公开(公告)日：2019-07-02

申请号：US15719571

申请日：2017-09-29

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Yuanjing Li ,  Ziran Zhao ,  Jianmin Li ,  Yulan Li ,  Weibin Zhu ,  Xiang Zou ,  Qingjun Zhang ,  Chunguang Zong ,  Xiaolin Zhao ,  Shuwei Li ,  Junxiao Wang

IPC: G01T1/24 ,  G01T1/17

Abstract: This disclosure provides a radiation detection apparatus and a method, a data processing method and a processor, which relates to the field of radiation detection technology. Wherein, the radiation detection apparatus of this disclosure comprises: a radiation detector which generates an electrical signal by interacting with X-rays; an Analog-to-Digital Converter (ADC) which is coupled to the radiation detector and transmits the electrical signal to a waveform data; and a data processor which receives the waveform data from the ADC, determines the number of single photon signals according to the waveform data, and determines whether an integral signal and/or a count signal of the waveform data will be used for imaging according to the number of the single photon signals.

公开(公告)号：US09513266B2

公开(公告)日：2016-12-06

申请号：US14577653

申请日：2014-12-19

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Qiufeng Ma ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Xiang Zou ,  Yanchun Wang ,  Junxiao Wang ,  Jianping Chang

IPC: H01J49/00 ,  G01N30/72 ,  G01N27/62 ,  G01N27/64 ,  H01J49/04

CPC classification number: G01N30/7206 ,  G01N27/622 ,  G01N27/64 ,  H01J49/0422

Abstract: A GC-IMS system is disclosed. The system includes a sample transfer device. The sample transfer device connects the gas chromatograph to the reaction region and, the sample from the gas chromatograph is transferred to the reaction region by the sample transfer device. With the GC-IMS system, generation of sample molecular ion fragments can be avoided so that the spectrum is easily identified; moreover, the application field of the GC-IMS system is extended to a range of analysis of organic macromolecule samples which have a high polarity, are difficult to volatilize, and are thermally instable. On the other hand, the GC-IMS system overcomes the defect of ion destruction due to neutralization reaction among positive and negative ions so as to evade the detection.

Abstract translation: 公开了一种GC-IMS系统。 该系统包括样品转移装置。 样品转移装置将气相色谱仪连接到反应区域，样品转移装置将样品从气相色谱仪转移到反应区域。 使用GC-IMS系统，可以避免样品分子离子片段的产生，从而可以容易地鉴定光谱; 此外，GC-IMS系统的应用领域扩展到具有高极性，难以挥发和热不稳定的有机大分子样品的分析范围。 另一方面，GC-IMS系统克服了由于正离子和负离子之间的中和反应引起的离子破坏的缺陷，以避免检测。