ENTRY 13908 20041026 00001390800000001 SUBENT 13908001 20041026 00001390800100001 BIB 12 21 1390800100002 INSTITUTE (1USANCS,1USANIS,1USAMIS,1USANCA,1USAINU) 1390800100003 + Univ. North Carolina, Wilmington, NC. 1390800100004 REFERENCE (J,PR/C,70,014004,200407) 1390800100005 AUTHOR (P.R.Huffman,D.L.Jacobson,K.Schoen,M.Arif,T.C.Black, 1390800100006 W.M.Snow,S.A.Werner) 1390800100007 TITLE Precision neutron interferometric measurement of the 1390800100008 n-3He coherent neutron scattering length 1390800100009 FACILITY (INTFM,1USANIS) NIST Center for Neutron Research 1390800100010 Interferometer and Optics Facility - perfect crystal 1390800100011 silicon neutron interferometer. 1390800100012 SAMPLE 3He gas (99.99% isotopically pure) at a pressure of 1390800100013 3.34 atm. housed in aluminum cell. 1390800100014 METHOD (DIFFR) 1390800100015 DETECTOR (HE3SP) 1390800100016 ANALYSIS Value given is weighted average of data from many runs.1390800100017 ERR-ANALYS (DATA-ERR) Uncertainty is dominated by statistical 1390800100018 uncertainty in phase shift difference. See Table I in 1390800100019 reference for details of relative uncertainties. 1390800100020 STATUS Data taken from reference text. 1390800100021 No reply from P. Huffman to author proof. 1390800100022 HISTORY (20040825C) 1390800100023 ENDBIB 21 0 1390800100024 NOCOMMON 0 0 1390800100025 ENDSUBENT 24 0 1390800199999 SUBENT 13908002 20040825 00001390800200001 BIB 1 1 1390800200002 REACTION (2-HE-3(N,THS)2-HE-3,COH,AMP) 1390800200003 ENDBIB 1 0 1390800200004 NOCOMMON 0 0 1390800200005 DATA 3 1 1390800200006 EN DATA DATA-ERR 1390800200007 MILLI-EV FERMI FERMI 1390800200008 11.1 5.8572 0.0072 1390800200009 ENDDATA 3 0 1390800200010 ENDSUBENT 9 0 1390800299999 ENDENTRY 2 0 1390899999999