MULTIELEMENT CAPABILITY OF A NONDISPERSIVE COHERENT FORWARD SCATTERING RESONANCE MONOCHROMATOR

A two-element coherent forward scattering resonance monochromator (CFS RM) was developed. It worked without any additional monochromator. In this report, a Cu-Fe CFSRM was investigated. Transmission signals for each element were recorded with one photomultiplier via time-sharing b y a gated pulse-counting technique. Background from stray and leakage light through the crossed polarizers was corrected. The transmission e fficiency of the CFSRM could be varied separately for each element. Ra diation from a Grimm-type glow discharge lamp with an Fe-Cu alloy cath ode (0, 2, 5 and 10 mg/g Cu) was filtered through a Cu-Fe CFSRM and a linear analytical curve could be obtained for Cu. The investigated two -element CFSRM can be easily extended to a multielement CFSRM system t hat also works without any additional dispersive instrumentation.