ENTRY 12666 19840525 00001266600000001 SUBENT 12666001 19840525 00001266600100001 BIB 11 23 1266600100002 INSTITUTE (1USAANL) 1266600100003 REFERENCE (J,PR,75,578,4902) 1266600100004 AUTHOR (E.FERMI,L.MARSHALL) 1266600100005 TITLE SPIN DEPENDENCE OF SLOW NEUTRON SCATTERING BY 1266600100006 DEUTERONS. 1266600100007 FACILITY (REAC) ANL HEAVY WATER PILE 1266600100008 METHOD EPITHERMAL NEUTRON CROSS SECTION FOR DEUTERIUM WAS 1266600100009 MEASURED FOR RESONANCE NEUTRONS OF INDIUM AND 1266600100010 SILVER. 1266600100011 THERMAL NEUTRONS WERE ABSORBED WITH THE HELP OF 1266600100012 A CADMIUM FOIL. 1266600100013 INC-SOURCE BEO FILTER WAS USED TO REMOVE NEUTRONS WHOSE WAVE 1266600100014 LENGTH IS LESS THAN 4.5A. THE AVERAGE WAVE LENGTH 1266600100015 OF THE NEUTRONS WAS FOUND TO BE 5.43A. 1266600100016 DETECTOR LONG BF3 COUNTER 1266600100017 SAMPLE DETETERIUM GAS IN A HEAVY WALLED GAS TUBE.THE 1266600100018 TEMPERATURE OF THE TUBE WAS MAINTAINED AT 77.5K. 1266600100019 ANALYSIS TWO ABSORBERS (D2O,H2O,BE) AND (BEO,O2,N2) WERE USED 1266600100020 IN TWO MEASUREMENTS. THE RATIO OF THE INTENSITY 1266600100021 TRANSMITTED BY ABSORBER 1 TO THAT TRANSMITTED BY 1266600100022 ABSORBER 2 WAS USED IN COMBINATION WITH CROSS 1266600100023 SECTIONS FOR BE(6.1B),O(4.1B),H(21.B) AND N(10.B). 1266600100024 HISTORY (840525C) 1266600100025 ENDBIB 23 0 1266600100026 NOCOMMON 0 0 1266600100027 ENDSUBENT 26 0 1266600199999 SUBENT 12666002 19840525 00001266600200001 BIB 4 13 1266600200002 REACTION (1-H-2(N,EL)1-H-2,,SIG) 1266600200003 ADD-RES DEUTERIUM MOLECULE TOTAL CROSS SECTION WAS 1266600200004 DETERMINED TO BE 21.3+-0.2B AT 77.5 KELVIN. 1266600200005 THE RATIO OF THE TRIPLET TO SIGLET SCATTERING 1266600200006 LENGTH WAS FOUND TO LIE BETWEEN THE LIMITS 1266600200007 OF 0.5 TO 2.3. 1266600200008 METHOD TRANSMISSION THROUGH ABSORBER CONTAINING D2O,H2O AND 1266600200009 BE.COMPARED WITH ABSORBER CONTAINING BEO,O2 AND N2. 1266600200010 ASSUMED ASSUMED TOTAL CROSS SECTIONS 1266600200011 OXYGEN- 4.1B 1266600200012 BERRILIUM- 6.1B 1266600200013 HYDROGEN- 21.B 1266600200014 NITROGEN- 10.B 1266600200015 ENDBIB 13 0 1266600200016 COMMON 1 3 1266600200017 TEMP 1266600200018 DEG-K 1266600200019 77.5 1266600200020 ENDCOMMON 3 0 1266600200021 DATA 3 1 1266600200022 EN-MEAN DATA DATA-ERR 1266600200023 ANGSTROM B B 1266600200024 5.43 3.44 0.06 1266600200025 ENDDATA 3 0 1266600200026 ENDSUBENT 25 0 1266600299999 ENDENTRY 2 0 1266699999999