Bae, Gwi-Nam Liu, Benjamin Y.H. 2024-01-12T11:09:53Z 2024-01-12T11:09:53Z 2022-03-07 1998-04 0073-9227 https://pubs.kist.re.kr/handle/201004/85420 Since in-situ particle monitors (ISPMs) have been evaluated in the past primarily at atmospheric pressures, their performance characteristics under vacuum conditions are not well understood. The performance of a Particle Measuring Systems (PMS) Vaculaz-2 ISPM at subatmospheric pressures has been studied experimentally in this research. We created uniform upstream conditions of particle concentration and measured the detection efficiency, the lower detection limit, and the particle size response of the ISPM using uniform sized methylene blue aerosol particles. The effect of particle size, particle velocity, particle concentration, and system pressure on the detection efficiency of the detector has been examined. English Institute of Environmental Sciences Performance characteristics of in-situ particle monitors at sub-atmospheric pressures Conference 1 1998 44th Annual Technical Meeting, pp.305 - 310 1998 44th Annual Technical Meeting 305 310 US Phoenix, AZ, USA 1998-04-26 Institute of Environmental Sciences - Proceedings, Annual Technical Meeting 2-s2.0-0031629923