公开(公告)号：US20220344144A1

公开(公告)日：2022-10-27

申请号：US17723501

申请日：2022-04-19

Applicant: FASMATECH SCIENCE AND TECHNOLOGY SA

Inventor： DIMITRIS PAPANASTASIOU

IPC: H01J49/42 ,  H01J49/02

Abstract: An apparatus (100, 300, 700) is described, comprising: a linear ion trap (102) comprising two pairs of pole electrodes and a radiofrequency, RF, electrical potential supply (117) configured to apply respective RF waveforms to the pairs of pole electrodes, thereby forming a RF trapping field component to trap analyte ions (116) radially in a trapping region (115) of the linear ion trap for processing of the analyte ions (116) therein; a charged particle source (101) comprising a pulse valve (103), a conduit (106, 107), having an entrance in fluid communication therewith and an exit, wherein the conduit (106, 107) extends in the direction of the trapping region (115), and a discharge device (108) electrically coupled to an electrical potential supply (109) and disposed between the entrance and the exit of the conduit (106, 107), wherein the pulse valve (103) is configured to release a gas pulse from a gas supply into the entrance of the conduit (106, 107) and wherein the electrical potential supply (109) is configured to apply a high voltage to the discharge device (108) to generate a discharge (110) in the gas pulse in the conduit (106, 107), thereby generating charged particles (114) from the gas and accelerating the generated charged particles in the direction of the trapping region (115). A method is also described.

公开(公告)号：US20160049285A1

公开(公告)日：2016-02-18

申请号：US14781618

申请日：2014-04-04

Applicant: FASMATECH SCIENCE AND TECHNOLOGY SA

Inventor： DIMITRIS PAPANASTASIOU ,  EMMANUEL RAPTAKIS ,  DIAMANTIS KOUNADIS ,  ALEXANDER LEKKAS ,  IOANNIS ORFANOPOULOS

IPC: H01J49/16 ,  H01J49/04

CPC classification number: H01J49/167 ,  H01J49/0404 ,  H01J49/045 ,  H01J49/0495 ,  H01J49/162

Abstract: Techniques are provided for generating charged droplets of liquid entrained within a gas flow within a vacuum chamber and for controlling the gas flow. The gas flow with the entrained charged droplets of liquid is jetted into the vacuum chamber along a predetermined jetting axis. The gas jet is received within a gas conduit housed within the vacuum chamber and having a conduit bore coaxial with the predetermined jetting axis. The received gas jet is caused to be restrained to form a laminar gas flow entrained with charged droplets inside of the gas conduit for guiding the entrained charged droplets therealong.

Abstract translation: 提供了技术来产生夹带在真空室内的气流中的带电液滴并用于控制气流。 具有夹带的液体的带电液滴的气流沿着预定的喷射轴线被喷射到真空室中。 气体射流被容纳在容纳在真空室内的气体管道中，并且具有与预定喷射轴线同轴的导管孔。 引起接收的气体射流被限制以形成夹带在气体导管内部的带电荷的液滴的层流气流，用于在其上引导夹带的带电液滴。