ENTRY 21622 20121108 22342162200000001 SUBENT 21622001 20121108 22342162200100001 BIB 16 63 2162200100002 INSTITUTE (2AUSATI) H.Kaiser,H.Rauch 2162200100003 (2AUSTHV) G.Badurek 2162200100004 (2GERDOR) W.Bauspiess,U.Bonse 2162200100005 (2FR ILL) W.Bauspiess. Experimental site. 2162200100006 REFERENCE (J,ZP/A,291,231,19790625) Main reference. 2162200100007 (C,78GRAZ,1,289,197808) Abstract. 2162200100008 (P,NEANDC(OR)-151,197704) Abst. 2162200100009 AUTHOR (H.Kaiser,H.Rauch,G.Badurek,W.Bauspiess,U.Bonse) 2162200100010 TITLE Measurement of coherent neutron scattering lengths 2162200100011 of gases 2162200100012 REL-REF (I,,Bauspiess+,J,NIM,157,495,1978) Details of facility.2162200100013 (M,,W.Bauspiess+,J,ZP,271,177,1974) Experimental Method2162200100014 FACILITY (REAC,2FR ILL) High flux reactor of Institute 2162200100015 Laue-Langevin. Also a perfect crystal neutron 2162200100016 interferometer is used. 2162200100017 INC-SOURCE (REAC) High flux reactor (neutron guide). 2162200100018 INC-SPECT Wave-length distribution has mean value 1.898+-0.003 2162200100019 Angstrom and width of about 0.7% and slightly 2162200100020 asymmetric form; measured in nondispersive position 2162200100021 without additional Ge-monochromator. 2162200100022 SAMPLE Gas vessel of Al alloy (Perradur S), with a 2162200100023 limit of ductility of 56 kp/mm/mm and a volume 2162200100024 of 11 cm**3 used at a pressure of 40 bars. The 2162200100025 quantity of gas used ranges between 0.5 and 1.0 2162200100026 grams. 2162200100027 Purity: H - 99.999%, D - 99.4% ( 0.6 H), He-3 - 99.98%2162200100028 He - 99.99995%, N - 99.999%, O - 99.998%, Ne - 99.99%,2162200100029 Ar - 99.999%, Kr - 99.99%, Xe - 99.99%. 2162200100030 Nuclei density, determined by real part of index of 2162200100031 refraction of sample ( 1.E+20 1/cm**3 ): 2162200100032 H - 3.938, D - 2.225, He-3 - 5.046, He - 8.938, 2162200100033 N - 1.550, O - 2.474, Ne - 6.263, Ar - 14.113, 2162200100034 Kr - 3.842, Xe - 6.168 . 2162200100035 METHOD (DIFFR) Two coherent beams traverse two different 2162200100036 path lengths in a gaseous sample of the material 2162200100037 to be studied. This causes a phase shift between 2162200100038 the two beams. By forcing these two beams to 2162200100039 interfere this phase shift can be determined from 2162200100040 the beam intensity oscillations as a function of 2162200100041 the density (i.e. the pressure, provided the 2162200100042 temperature is monitored) of the sample. For 2162200100043 more details and for formulas see Z.Physik,271,177. 2162200100044 DETECTOR (BF3) Two BF3 detectors. 2162200100045 CORRECTION For phase shift caused by the AL windows 2162200100046 of the pressure vessel. 2162200100047 Correction due to expansion of pressure vessels 0.5% 2162200100048 for H2, 1.7% for Ar. 2162200100049 Attenuation correction was considered for all gases, 2162200100050 but had noticeable influence for He-3 only. 2162200100051 ERR-ANALYS (ERR-S) Statistical errors. Gaussian error laws are 2162200100052 used for the calculation of the variances of the 2162200100053 data. 2162200100054 COMMENT Incoming neutron energy calculated from given neutron 2162200100055 wave length of 1.898+-0.003 Angstrom. 2162200100056 STATUS (TABLE) Data from Z.Physik, A291,231,1979 2162200100057 HISTORY (19800805C) G.C. 2162200100058 (19800808E) 2162200100059 (20010608A) Updated to new date formats, BIB update. 2162200100060 Data error heading updated. 2162200100061 (20080126U) M.M. BIB information added. 2162200100062 Upper-lower case correction. 2162200100063 (20121108U) SD: Ref. on ZP,271,177 corrected (ZP/A->ZP)2162200100064 and moved to REL-REF. 2162200100065 ENDBIB 63 0 2162200100066 COMMON 2 3 2162200100067 EN WVE-LN 2162200100068 MILLI-EV ANGSTROM 2162200100069 2.2707E+01 1.898 2162200100070 ENDCOMMON 3 0 2162200100071 ENDSUBENT 70 0 2162200199999 SUBENT 21622002 20080126 21932162200200001 BIB 5 14 2162200200002 REACTION 1(1-H-1(N,EL)1-H-1,FA,AMP,,MSC,CALC) 2162200200003 Scattering length for scattering through a 2162200200004 singlet compound nucleus state. 2162200200005 2(1-H-1(N,EL)1-H-1,FA,AMP,,MSC,CALC) 2162200200006 Scattering length for scattering through 2162200200007 triplet compound nucleus state. 2162200200008 ASSUMED (ASSUM,1-H-1(N,THS)1-H-1,FA,SIG) 2162200200009 REL-REF (R,20597002,W.Dilg+,J,PR/C,11,103,1975) Reference for 2162200200010 ASSUM data. 2162200200011 (A,20609002,L.Koestler+,J,ZP/A,272,189,1975) Data of 2162200200012 Koestler+ : -23.749+-0.008 , 5.424+-0.003 fermi, 2162200200013 respectively (Comment of REL-REF). 2162200200014 STATUS Text, main reference, page 236. 2162200200015 HISTORY (20010608A) Target corrected. 2162200200016 ENDBIB 14 0 2162200200017 COMMON 2 3 2162200200018 ASSUM ASSUM-ERR 2162200200019 B B 2162200200020 2.0491E+01 1.4000E-02 2162200200021 ENDCOMMON 3 0 2162200200022 DATA 4 1 2162200200023 DATA 1ERR-S 1DATA 2ERR-S 2 2162200200024 FERMI FERMI FERMI FERMI 2162200200025 -2.3711E+01 1.4000E-02 5.4790E+00 1.6000E-02 2162200200026 ENDDATA 3 0 2162200200027 ENDSUBENT 26 0 2162200299999 SUBENT 21622003 20080126 21932162200300001 BIB 5 11 2162200300002 REACTION 1(1-H-2(N,EL)1-H-2,FA,AMP,,MSC,CALC) 2162200300003 Scattering amplitude for scattering through 2162200300004 the spin=2 state of the compound nucleus. 2162200300005 2(1-H-2(N,EL)1-H-2,FA,AMP,,MSC,CALC) 2162200300006 Scattering amplitude for scattering through 2162200300007 the spin=4 state of the compound nucleus. 2162200300008 ASSUMED (ASSUM,1-H-2(N,THS)1-H-2,FA,SIG) 2162200300009 REL-REF (R,20596003,W.Dilg+,J,PL/B,36,208,1971) Reference for 2162200300010 ASSUM values. 2162200300011 STATUS Text, main reference, page 236. 2162200300012 HISTORY (20010608A) Reaction corrected; D-2 corrected to H-2. 2162200300013 ENDBIB 11 0 2162200300014 COMMON 2 3 2162200300015 ASSUM ASSUM-ERR 2162200300016 B B 2162200300017 3.3900E+00 1.2000E-02 2162200300018 ENDCOMMON 3 0 2162200300019 DATA 4 1 2162200300020 DATA 1ERR-S 1DATA 2ERR-S 2 2162200300021 FERMI FERMI FERMI FERMI 2162200300022 3.8000E-01 1.7000E-01 6.3550E+00 1.3000E-02 2162200300023 ENDDATA 3 0 2162200300024 ENDSUBENT 23 0 2162200399999 SUBENT 21622004 20080126 21932162200400001 BIB 4 16 2162200400002 REACTION 1(2-HE-3(N,EL)2-HE-3,FA,AMP,,MSC,CALC) 2162200400003 Scattering length for scattering through the 2162200400004 singlet state of the compound nucleus. 2162200400005 2(2-HE-3(N,EL)2-HE-3,FA,AMP,,MSC,CALC) 2162200400006 Scattering length for scattering through the 2162200400007 triplet state of the compound nucleus. 2162200400008 ASSUMED (ASSUM1,2-HE-3(N,EL)2-HE-3,FA,SIG) 2162200400009 (ASSUM2,2-HE-3(N,G)2-HE-4,PAR,SIG) Calculated 2162200400010 from the corresponding scattering length. Cross 2162200400011 section for the reaction through the singlet 2162200400012 state of the compound nucleus only. For the 2162200400013 calculation the formula given in the text is 2162200400014 used. 2162200400015 REL-REF (R,40654002,V.P.Alfimenkov+,J,YF,25,607,1977) Reference2162200400016 for ASSUM1 value. 2162200400017 STATUS (TABLE) Table 2, main reference. 2162200400018 ENDBIB 16 0 2162200400019 COMMON 3 3 2162200400020 ASSUM1 ASSUM1-ERR ASSUM2 2162200400021 B B B 2162200400022 3.1600E+00 2.0000E-01 5.6240E+03 2162200400023 ENDCOMMON 3 0 2162200400024 DATA 4 1 2162200400025 DATA 1ERR-S 1DATA 2ERR-S 2 2162200400026 FERMI FERMI FERMI FERMI 2162200400027 6.1000E+00 1.1000E+00 3.5000E+00 4.0000E-01 2162200400028 ENDDATA 3 0 2162200400029 ENDSUBENT 28 0 2162200499999 SUBENT 21622005 20080126 21932162200500001 BIB 4 11 2162200500002 REACTION (2-HE-3(N,EL)2-HE-3,INC,SIG) 2162200500003 ASSUMED (ASSUM1,2-HE-3(N,EL)2-HE-3,FA,SIG) 2162200500004 (ASSUM2,2-HE-3(N,G)2-HE-4,PAR,SIG) Calculated 2162200500005 from the corresponding scattering length. Cross 2162200500006 section for the reaction through the singlet 2162200500007 state of the compound nucleus only. For the 2162200500008 calculation the formula given in the text is 2162200500009 used. 2162200500010 REL-REF (R,40654002,V.P.Alfimenkov+,J,YF,25,607,1977) Reference2162200500011 for ASSUM1 value. 2162200500012 STATUS (TABLE) Table 2, main reference. 2162200500013 ENDBIB 11 0 2162200500014 COMMON 3 3 2162200500015 ASSUM1 ASSUM1-ERR ASSUM2 2162200500016 B B B 2162200500017 3.1600E+00 2.0000E-01 5.6240E+03 2162200500018 ENDCOMMON 3 0 2162200500019 DATA 2 1 2162200500020 DATA ERR-S 2162200500021 B B 2162200500022 6.8000E-01 1.6000E-01 2162200500023 ENDDATA 3 0 2162200500024 ENDSUBENT 23 0 2162200599999 SUBENT 21622006 20080126 21932162200600001 BIB 4 11 2162200600002 REACTION (2-HE-3(N,EL)2-HE-3,COH,AMP) 2162200600003 ASSUMED (ASSUM1,2-HE-3(N,EL)2-HE-3,FA,SIG) 2162200600004 (ASSUM2,2-HE-3(N,G)2-HE-4,PAR,SIG) Calculated 2162200600005 from the corresponding scattering length. Cross 2162200600006 Section for the reaction through the singlet 2162200600007 state of the compound nucleus only. For the 2162200600008 calculation the formula given in the text is 2162200600009 used. 2162200600010 REL-REF (R,40654002,V.P.Alfimenkov+,J,YF,25,607,1977) Reference2162200600011 for ASSUM1 value. 2162200600012 STATUS (TABLE) Table 2, main reference. 2162200600013 ENDBIB 11 0 2162200600014 COMMON 3 3 2162200600015 ASSUM1 ASSUM1-ERR ASSUM2 2162200600016 B B B 2162200600017 3.1600E+00 2.0000E-01 5.6240E+03 2162200600018 ENDCOMMON 3 0 2162200600019 DATA 2 1 2162200600020 DATA ERR-S 2162200600021 FERMI FERMI 2162200600022 4.3000E+00 5.0000E-02 2162200600023 ENDDATA 3 0 2162200600024 ENDSUBENT 23 0 2162200699999 SUBENT 21622007 20080126 21932162200700001 BIB 4 11 2162200700002 REACTION (2-HE-3(N,EL)2-HE-3,COH,SIG) 2162200700003 ASSUMED (ASSUM1,2-HE-3(N,EL)2-HE-3,FA,SIG) 2162200700004 (ASSUM2,2-HE-3(N,G)2-HE-4,PAR,SIG) Calculated 2162200700005 from the corresponding scattering length. Cross 2162200700006 section for the reaction through the singlet 2162200700007 state of the compound nucleus only. For the 2162200700008 calculation the formula given in the text is 2162200700009 used. 2162200700010 REL-REF (R,40654002,V.P.Alfimenkov+,J,YF,25,607,1977) Reference2162200700011 for ASSUM1 value. 2162200700012 STATUS (TABLE) Table 2, main reference. 2162200700013 ENDBIB 11 0 2162200700014 COMMON 3 3 2162200700015 ASSUM1 ASSUM1-ERR ASSUM2 2162200700016 B B B 2162200700017 3.1600E+00 2.0000E-01 5.6240E+03 2162200700018 ENDCOMMON 3 0 2162200700019 DATA 2 1 2162200700020 DATA ERR-S 2162200700021 B B 2162200700022 2.4900E+00 5.0000E-02 2162200700023 ENDDATA 3 0 2162200700024 ENDSUBENT 23 0 2162200799999 SUBENT 21622008 20080126 21932162200800001 BIB 2 2 2162200800002 REACTION (1-H-1(N,THS)1-H-1,BA/COH,AMP) 2162200800003 STATUS (TABLE) Table 1 of main reference. 2162200800004 ENDBIB 2 0 2162200800005 NOCOMMON 0 0 2162200800006 DATA 2 1 2162200800007 DATA ERR-S 2162200800008 FERMI FERMI 2162200800009 -3.6400E+00 3.0000E-02 2162200800010 ENDDATA 3 0 2162200800011 ENDSUBENT 10 0 2162200899999 SUBENT 21622009 20080126 21932162200900001 BIB 2 2 2162200900002 REACTION (1-H-2(N,THS)1-H-2,BA/COH,AMP) 2162200900003 STATUS (TABLE) Table 1 of main reference. 2162200900004 ENDBIB 2 0 2162200900005 NOCOMMON 0 0 2162200900006 DATA 2 1 2162200900007 DATA ERR-S 2162200900008 FERMI FERMI 2162200900009 6.5500E+00 8.0000E-02 2162200900010 ENDDATA 3 0 2162200900011 ENDSUBENT 10 0 2162200999999 SUBENT 21622010 20080126 21932162201000001 BIB 2 2 2162201000002 REACTION (2-HE-3(N,THS)2-HE-3,BA/COH,AMP) 2162201000003 STATUS (TABLE) Table 1 of main reference. 2162201000004 ENDBIB 2 0 2162201000005 NOCOMMON 0 0 2162201000006 DATA 2 1 2162201000007 DATA ERR-S 2162201000008 FERMI FERMI 2162201000009 5.7400E+00 7.0000E-02 2162201000010 ENDDATA 3 0 2162201000011 ENDSUBENT 10 0 2162201099999 SUBENT 21622011 20080126 21932162201100001 BIB 2 2 2162201100002 REACTION (2-HE-4(N,THS)2-HE-4,BA/COH,AMP) 2162201100003 STATUS (TABLE) Table 1 of main reference. 2162201100004 ENDBIB 2 0 2162201100005 NOCOMMON 0 0 2162201100006 DATA 2 1 2162201100007 DATA ERR-S 2162201100008 FERMI FERMI 2162201100009 3.2600E+00 3.0000E-02 2162201100010 ENDDATA 3 0 2162201100011 ENDSUBENT 10 0 2162201199999 SUBENT 21622012 20080126 21932162201200001 BIB 3 3 2162201200002 REACTION (7-N-0(N,THS)7-N-0,BA/COH,AMP) 2162201200003 STATUS (TABLE) Table 1 of main reference. 2162201200004 HISTORY (20010608A) Reaction product added. 2162201200005 ENDBIB 3 0 2162201200006 NOCOMMON 0 0 2162201200007 DATA 2 1 2162201200008 DATA ERR-S 2162201200009 FERMI FERMI 2162201200010 9.3000E+00 8.0000E-02 2162201200011 ENDDATA 3 0 2162201200012 ENDSUBENT 11 0 2162201299999 SUBENT 21622013 20080126 21932162201300001 BIB 3 3 2162201300002 REACTION (8-O-0(N,THS)8-O-0,BA/COH,AMP) 2162201300003 STATUS (TABLE) Table 1 of main reference. 2162201300004 HISTORY (20010608A) Reaction product added. 2162201300005 ENDBIB 3 0 2162201300006 NOCOMMON 0 0 2162201300007 DATA 2 1 2162201300008 DATA ERR-S 2162201300009 FERMI FERMI 2162201300010 5.8300E+00 5.0000E-02 2162201300011 ENDDATA 3 0 2162201300012 ENDSUBENT 11 0 2162201399999 SUBENT 21622014 20080126 21932162201400001 BIB 3 3 2162201400002 REACTION (10-NE-0(N,THS)10-NE-0,BA/COH,AMP) 2162201400003 STATUS (TABLE) Table 1 of main reference. 2162201400004 HISTORY (20010608A) Reaction product added. 2162201400005 ENDBIB 3 0 2162201400006 NOCOMMON 0 0 2162201400007 DATA 2 1 2162201400008 DATA ERR-S 2162201400009 FERMI FERMI 2162201400010 4.6300E+00 4.0000E-02 2162201400011 ENDDATA 3 0 2162201400012 ENDSUBENT 11 0 2162201499999 SUBENT 21622015 20080126 21932162201500001 BIB 3 3 2162201500002 REACTION (18-AR-0(N,THS)18-AR-0,BA/COH,AMP) 2162201500003 STATUS (TABLE) Table 1 of main reference. 2162201500004 HISTORY (20010608A) Reaction product added. 2162201500005 ENDBIB 3 0 2162201500006 NOCOMMON 0 0 2162201500007 DATA 2 1 2162201500008 DATA ERR-S 2162201500009 FERMI FERMI 2162201500010 2.0700E+00 2.0000E-02 2162201500011 ENDDATA 3 0 2162201500012 ENDSUBENT 11 0 2162201599999 SUBENT 21622016 20080126 21932162201600001 BIB 3 3 2162201600002 REACTION (36-KR-0(N,THS)36-KR-0,BA/COH,AMP) 2162201600003 STATUS (TABLE) Table 1 of main reference. 2162201600004 HISTORY (20010608A) Reaction product added. 2162201600005 ENDBIB 3 0 2162201600006 NOCOMMON 0 0 2162201600007 DATA 2 1 2162201600008 DATA ERR-S 2162201600009 FERMI FERMI 2162201600010 7.5200E+00 6.0000E-02 2162201600011 ENDDATA 3 0 2162201600012 ENDSUBENT 11 0 2162201699999 SUBENT 21622017 20080126 21932162201700001 BIB 3 3 2162201700002 REACTION (54-XE-0(N,THS)54-XE-0,BA/COH,AMP) 2162201700003 STATUS (TABLE) Table 1 of main reference. 2162201700004 HISTORY (20010608A) Reaction product added. 2162201700005 ENDBIB 3 0 2162201700006 NOCOMMON 0 0 2162201700007 DATA 2 1 2162201700008 DATA ERR-S 2162201700009 FERMI FERMI 2162201700010 4.6900E+00 4.0000E-02 2162201700011 ENDDATA 3 0 2162201700012 ENDSUBENT 11 0 2162201799999 ENDENTRY 17 0 2162299999999