XIA—UltraLo-1800—超低本底α谱仪

theultralo-1800 is a windowless, ultra low background alpha particlecounter designed to measure the alpha particle emissivity of solidmaterials. the system employs the patentedue of electronicbackground suppression, which drives achievable background rates to0.0001 alphas/cm2/hr and below. this is a factor of 50 or morebetter than can be achieved by the conventional proportionalcounter systems that are currently available. with theultralo-1800, it becomes feasible to measure samples havingemissivities in the 0.001 to 0.0005 alpha/cm2/hr range in fewerthan 10 hours, and to measure emissivities below 0.0005alpha/cm2/hr in fewer than 100 hours.