X-Ray image converter devices utilizing rare earth oxyhalide pho
X-ray imaging tube
X-ray intensifying screens and method of manufacturing the same
X-ray lithography at .about.100 A linewidths using X-ray masks f
X-ray lithography mask
X-ray mask blank process
X-ray target
Xerographic method for dry sensitization and electroless coating
Xerographic reproduction process and toner carrier for use there