SiiH. Ι«5»1;ΕΕ1'Γ" ' .Π' t·';'.' THiTuS ■V,iLïï^*3&:.?'.-MVmwrwCentral Nuclear Measurements Burea eau (C.N.M.B.) Reprinted from M ■"wiiilflBB JUMENTS 24 1963 ^«« :r*' ΓfflWTfJfcl in"<:*IWf'. r·.··· **r.vNr% " i 'iSí^íhnJiK.'····. AJttMtariEi.Iïl. !! '»aß· K?f.r· · "·*■ i.f'· W!ff his document was prepared under the Atomic Energy Community (EURATOM). » Neitte the EURATOM Corion, «. coacto, n„r a„y person a*g o» t^ behalí:, H.'tTg.iBi.k.í 1 i'L''!)«P:'i anty or representation, express or implied, with respect to theaccuracy,r usefulness of the information contained in this document, orthattheuseofanyinformation tion,apparatus, method, or process disclosed in this documentmaynot»lil infringeprivate"l y owned nghts; or 2o_Assumeany liabüity with respect to the use of, or for damages resulting fromtheuseofanyinformation, apparatus, method or process disclosed in this document.Wi !'.!! fyJE^ËJmiffii v!· ill ^Jii'iÀ^i:« äletSS Msiftllii!' imi Theauthors'namesare listed in alphabetical order.mm m ¡F tim m ti*' o ¿#1*«! 'w¡j{¥í***'*'is1ví<í,it^íi ' yycfllalMiluiFtiiLLiÍτ2 lift!'ίir ' .gJTiüiiiinaKli UÆH r'!i8ubHwn "íí»llF'?nillF't'f í This reprint is intended for restricted distribution only. It reproduces, by kind permission of the publisher, an article from "NUCLEAR INSTRUMENTS AND METHODS", 24 - 1963, 465-470. For further Box 103. Dieser Sonderdruck ist für eine beschränkte Verteilung bestimmt.