ENTRY 14213 20090505 13531421300000001 SUBENT 14213001 20090505 13531421300100001 BIB 10 21 1421300100002 TITLE Magnetic scattering of slow neutrons by gaseous oxygen 1421300100003 AUTHOR (H.Palevsky,R.M.Eisberg) 1421300100004 INSTITUTE (1USABNL) 1421300100005 REFERENCE (J,PR,98,492,1955) 1421300100006 FACILITY (REAC,1USABNL) Collimated neutron beam of neutrons from1421300100007 BNL pile was chopped into series of 200 microsecond 1421300100008 bursts by slow chopper and filtered by a 4 inches of 1421300100009 Be maintained at liquid N2 temperature to eliminate 1421300100010 neutrons of thermal and higher energies. 1421300100011 SAMPLE Gaseous O2 sample in sample vessel with length of 3.5 m1421300100012 Sample vessel may be evacuated or filled to 10 atm 1421300100013 with O2. Sample temperature was 296 K. 1421300100014 DETECTOR (BF3) Neutrons were detected with a shielded BF3 1421300100015 counter in a good geometry.Chopped beam was monitored 1421300100016 by a BF3 counter placed in a beam obtained from the 1421300100017 same region of the pile as the chopped beam. Monitor 1421300100018 beam was filtered through the graphite. 1421300100019 METHOD (TOF)The velocities of detected neutrons were 1421300100020 determined by time of flight over the 5 m flight path 1421300100021 ERR-ANALYS (ERR-S) Statistical uncertainties given 1421300100022 HISTORY (20090106C) Compiled by S.H. 1421300100023 ENDBIB 21 0 1421300100024 NOCOMMON 0 0 1421300100025 ENDSUBENT 24 0 1421300199999 SUBENT 14213002 20090505 13531421300200001 BIB 2 3 1421300200002 REACTION (8-O-16(N,THS)8-O-16,,SIG,,FCT) Data are given in 1421300200003 units barns / oxygen molecule 1421300200004 STATUS (CURVE) data taken from fig. 2 of the reference 1421300200005 ENDBIB 3 0 1421300200006 COMMON 1 3 1421300200007 TEMP 1421300200008 K 1421300200009 296.0 1421300200010 ENDCOMMON 3 0 1421300200011 DATA 3 23 1421300200012 EN DATA ERR-S 1421300200013 ANGSTROM B B 1421300200014 2.60 9.02 1421300200015 2.80 9.41 1421300200016 3.01 9.86 1421300200017 3.24 10.30 1421300200018 3.46 11.01 1421300200019 3.68 11.25 0.14 1421300200020 3.88 11.92 0.14 1421300200021 4.11 12.38 0.21 1421300200022 4.33 13.05 0.19 1421300200023 4.55 13.45 0.25 1421300200024 4.79 14.12 0.25 1421300200025 5.02 14.49 1421300200026 5.46 15.40 1421300200027 5.92 16.35 1421300200028 6.38 17.02 1421300200029 6.84 18.18 1421300200030 7.26 18.76 1421300200031 7.75 19.57 1421300200032 8.17 20.36 0.14 1421300200033 8.64 21.35 0.12 1421300200034 9.12 21.70 0.16 1421300200035 9.58 22.47 0.21 1421300200036 10.02 23.79 0.42 1421300200037 ENDDATA 25 0 1421300200038 ENDSUBENT 37 0 1421300299999 ENDENTRY 2 0 1421399999999