US 11,869,757 B2
Detector comprising transmission secondary electron emission means
Russell Jurek, Clyde (AU); Kevin Hunter, Clyde (AU); Antony Jones, Clyde (AU); and Aditya Wakhle, Clyde (AU)
Assigned to ADAPTAS SOLUTIONS PTY LTD, Clyde (AU)
Appl. No. 17/616,831
Filed by ADAPTAS SOLUTIONS PTY LTD, Clyde (AU)
PCT Filed Jun. 5, 2020, PCT No. PCT/AU2020/050581
§ 371(c)(1), (2) Date Dec. 6, 2021,
PCT Pub. No. WO2020/243795, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 2019901981 (AU), filed on Jun. 7, 2019.
Prior Publication US 2022/0293402 A1, Sep. 15, 2022
Int. Cl. H01J 43/10 (2006.01); H01J 43/02 (2006.01); H01J 1/32 (2006.01); H01J 43/24 (2006.01); H01J 43/28 (2006.01); G01T 1/28 (2006.01); H01J 49/02 (2006.01); H01J 49/26 (2006.01)
CPC H01J 43/10 (2013.01) [H01J 43/02 (2013.01); H01J 43/28 (2013.01); G01T 1/28 (2013.01); H01J 49/025 (2013.01); H01J 49/26 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A self-contained particle detector comprising:
an enclosure formed in part by a transmission mode secondary electron emissive element, the enclosure defining an internal environment and an external environment and the enclosure prevents or inhibits movement of a contaminant from the external environment to the internal environment, wherein the transmission mode secondary electron emissive element has an externally facing surface and an internally facing surface and is configured such that impact of a particle on the externally facing surface causes emission of one or more secondary electrons from the internally facing surface.