A detector assembly for simultaneous conversion electron M össbauer spectroscopy (CEMS), conversion x-ray M össbauer spectroscopy (CXMS) and transmission M össbauer spectroscopy (TMS) is presented. Two proportional flow counters combined together are used for CEMS and CXMS. The incident 14.4 keV γ -rays are able to permeate the sample and are detected by a conventional proportional detector located behind the CEMS/CXMS detector. The characteristics of the CEMS/CXMS detector, operating at room temperature, are reported.

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In this paper we consider the coherent scattering of the solar neutrino flux off target matter in a terrestrial detector. We propose a heuristic approach that targets the apparent abnormal neutrinos scattering on high Debye temperature monocrystals. The possibility of observing the diurnal effect of solar neutrinos using the presumed coherent scattering on high Debye temperature monocrystals, such as sapphire, is presented and discussed. A 'Cavendish-type' torsion balance is used for the measurement of the presumed neutrino-induced torques. An effect correlated with the direction of the sun was observed.

Transmission and Conversion Electron MossbauerInvestigation of Fe81B13a5Si3.5C2 Glass under RF Thermal Treatment BY 1. BIBICU, M. S. ROGALSKI, and G. NICOLESCU Pulsed 54.8 MHz rf annealing of Fe,lB,,,5Si,,,C, glass inducesbefore any crystallization can be detected by X-ray diffractiondifferent short-range ordering effects reflected in the simultaneous recording of conversion electron (CEM) and transmission (TM) Mossbauer spectra. A quadrupole interaction analysis reveals an almost identical threshold energy for the bulk stress relief and for the chemical short-range order growth evidenced in CEM spectra, attributed to different strength and distribution of the atomic bonding.Les spectres Mossbauer de transmission (TM) et des electrons de conversion (CEM), enregistres simultankment, mettent en evidence un ordre different a parcours rCduit induit a Yetat vitreux du compose Fe8,B1,,,Si-&, durant le recuit dans un champ de radiofrequence pulsatoire de 54,8 MHz. L'analyse de l'interaction quadrupolaire montre un seuil presque tquivalent l'hergie de relaxation de tension du milieu dans les spectres TM et a celle de la croissance de l'ordre chimique a parcours rtduit dans les spectres CEM, effets d2 aux differentes forces de liaison.

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