Home / Jobs / APXS on Pragyan (PRL) Job APXS on Pragyan (PRL) APXS is the Physical Research Laboratory's alpha particle X-ray spectrometer. Themes: Science & sensing CompaniesIndian Space Research Organisation (ISRO) FlightsChandrayaan-32023-07-14 · ISRO national soft-landing mission near lunar south polar highlands. Cargo Alpha Particle X-ray Spectrometer Sourcesisro.gov.inprl.res.in