ENTRY 30998 19931202 31303099800000001 SUBENT 30998001 19931202 31303099800100001 BIB 9 37 3099800100002 TITLE Measurements of neutron capture cross sections of 3099800100003 wolfram and thulium 3099800100004 AUTHOR (Xia Yijun, Wang Chunhao, Yang Jingfu, Yang Zhihua, 3099800100005 Luo Xiaobing, Liu Jianfeng) 3099800100006 INSTITUTE (3CPRSIU) 3099800100007 FACILITY (VDG,3CPRSIU) 2.5 MV pulsed Van De Graaff Accelerator 3099800100008 INC-SOURCE (P-LI7) - Proton Energy was adjusted to 20 keV above 3099800100009 the reaction threshold of 1.881 MeV in order 3099800100010 to obtain kinematically collimated neutrons. 3099800100011 - Neutrons have a half maximum opening angle 3099800100012 of 45.5 deg. 3099800100013 - Continuous energy neutron beam between 10 3099800100014 and 100 keV was obtained. 3099800100015 DETECTOR (MOXR) Capture events were detected by a pair of 3099800100016 Moxon-Rae Detectors located outside neutron 3099800100017 cone. 3099800100018 (GLASD) An Li-6-Glass detector was placed at 0 deg 3099800100019 with respect to the proton beam axis to 3099800100020 measure the transmitted neutron spectra. 3099800100021 METHOD (TOF) - Neutron energy was determined by the Time-Of- 3099800100022 Flight method. 3099800100023 - The TOF spectra was detected by the Moxon-Rae 3099800100024 detectors and the Li-6-Glass detector. 3099800100025 ERR-ANALYS (EN-ERR) -Energy Resolution: 24 ns/m; 3099800100026 -Flight path: 7 cm. 3099800100027 HISTORY (19920917C) HW 3099800100028 (19930407U) HW.- MONITOR, MON-REF, ERR-1, ERR-S and 3099800100029 ERR-T moved from SUBENT 001 to SUBENT 3099800100030 002 SUBENT 003 with pointers. 3099800100031 (19930826U) HW.1.Duplicate pointers deleted. 3099800100032 2.REFERENCE, SAMPLE, CORRECTION and 3099800100033 STATUS added in SUBENTS 002 and 002. 3099800100034 3.SUBENT 004 added (previously 3099800100035 32504.002) 3099800100036 (19931027U) HW.1.REFERENCE deleted in SUBENTS. 001 3099800100037 2.New REFERENCE added in SUB 002. 3099800100038 (20080814A) BG+On. BIB updated 3099800100039 ENDBIB 37 0 3099800100040 NOCOMMON 0 0 3099800100041 ENDSUBENT 40 0 3099800199999 SUBENT 30998002 19940228 31303099800200001 BIB 9 26 3099800200002 REACTION 1((74-W-0(N,G),,SIG)/(79-AU-197(N,G)79-AU-198,,SIG)) 3099800200003 2(74-W-0(N,G),,SIG) 3099800200004 REFERENCE (C,91BEIJIN,,147,1991) 3099800200005 (J,CNP,12,(4),375,1990) 3099800200006 MONITOR 2(79-AU-197(N,G)79-AU-198,,SIG) 3099800200007 MONIT-REF 2(,JIANG SONSHENG,R,HSJ-77141,1978) 3099800200008 SAMPLE -Metal disc with chemical purity 99. % 3099800200009 ERR-ANALYS (ERR-T) Total uncertainty 3099800200010 (ERR-SYS) - Systematic error, includes detector 3099800200011 efficiency from a linear relation with 3099800200012 gamma-ray energies (2%) 3099800200013 (ERR-S) - Statistical uncertainty 3099800200014 CORRECTION - Background in the TOF spectra; 3099800200015 - Multiple scattering; 3099800200016 - Self-shielding; 3099800200017 - gamma-ray self-absorption 3099800200018 STATUS (TABLE) Taken from Beijing International Symposium of 3099800200019 Fast Neutron Physics, Beijing, 9-13 September 3099800200020 1991, p.147 Tables 1 and 2. 3099800200021 HISTORY (19930407U) HW.1.MONITOR, MONIT-REF, ERR-ANALYS added. 3099800200022 2.Point. 2 added to ERR-S, ERR-1, ERR-T 3099800200023 (19930826U) HW.1.Duplicate pointers deleted. 3099800200024 2.REFERENCE, SAMPLE, CORRECTION, STATUS 3099800200025 added. 3099800200026 (19931027U) HW.- REFERENCE added. 3099800200027 (20080814A) BG+On. BIB updated. ERR-1 -> ERR-SYS 3099800200028 ENDBIB 26 0 3099800200029 NOCOMMON 0 0 3099800200030 DATA 7 20 3099800200031 EN EN-ERR DATA 1DATA 2ERR-S 2ERR-SYS 23099800200032 ERR-T 2 3099800200033 KEV KEV NO-DIM MB PER-CENT PER-CENT 3099800200034 PER-CENT 3099800200035 11.2 0.3 0.370 430. 8.2 5.53099800200036 9.9 3099800200037 12.8 0.4 0.385 387. 7.4 4.43099800200038 8.6 3099800200039 14.3 0.5 0.423 397. 7.3 5.13099800200040 8.9 3099800200041 15.4 0.5 0.429 385. 7.0 5.23099800200042 8.7 3099800200043 16.6 0.6 0.395 336. 6.6 4.73099800200044 8.1 3099800200045 18.0 0.7 0.403 322. 6.5 4.53099800200046 7.9 3099800200047 19.6 0.8 0.415 315. 6.2 4.63099800200048 7.7 3099800200049 21.4 0.9 0.444 326. 5.6 5.73099800200050 8.0 3099800200051 23.4 1.0 0.451 316. 5.3 4.63099800200052 7.0 3099800200053 25.8 1.2 0.455 300. 4.3 5.03099800200054 6.6 3099800200055 28.5 1.4 0.464 284. 4.2 5.43099800200056 6.8 3099800200057 31.7 1.6 0.483 277. 3.9 4.33099800200058 5.8 3099800200059 35.5 1.8 0.475 257. 3.3 4.53099800200060 5.6 3099800200061 40.0 2.3 0.465 235. 2.7 4.63099800200062 5.3 3099800200063 45.4 2.7 0.498 240. 2.6 4.43099800200064 5.1 3099800200065 51.9 3.4 0.478 215. 2.5 4.63099800200066 5.1 3099800200067 60.0 4.2 0.503 206. 2.0 4.33099800200068 5.0 3099800200069 70.2 5.3 0.524 199. 1.8 4.53099800200070 4.7 3099800200071 83.1 6.8 0.551 195. 1.6 4.53099800200072 4.8 3099800200073 99.9 9.0 0.538 173. 1.9 8.53099800200074 8.7 3099800200075 ENDDATA 44 0 3099800200076 ENDSUBENT 75 0 3099800299999 SUBENT 30998003 19930928 31303099800300001 BIB 9 38 3099800300002 REFERENCE (J,CNP,10,(2),102,1988) in Chinese 3099800300003 (J,CNP,11,(2),75,1989) English translation of CNP,10 3099800300004 (C,91BEIJIN,,147,1991) 3099800300005 REACTION 1((69-TM-169(N,G)69-TM-170,,SIG)/ 3099800300006 (79-AU-197(N,G)79-AU-198,,SIG)) 3099800300007 2(69-TM-169(N,G)69-TM-170,,SIG) 3099800300008 SAMPLE -Metal disc with chemical purity 99.99% 3099800300009 MONITOR 2(79-AU-197(N,G)79-AU-198,,SIG) 3099800300010 MONIT-REF 2(,JIANG SONSHENG,R,HSJ-77141,1978) 3099800300011 CORRECTION 1) Multiple scattering: 1.02-1.04; 3099800300012 2) Self-shielding: 0.982-0.987; 3099800300013 3) Gamma ray self-absorption: 0.984. 3099800300014 1. and 2. are calculated with Monte Carlo program SESH 3099800300015 (F.H.Frohner,GA-8380 (1983)). 3099800300016 3. is calculated with Hubbell's mass absorption 3099800300017 coefficients 3099800300018 (J.H.Hubbell, J.Phys.Chem.Ref,Data,9,1023(1980). 3099800300019 ERR-ANALYS (ERR-T) Total uncertainty 3099800300020 (ERR-SYS) - Systematic error, containing (%): 3099800300021 - Deviation of the detector efficiency 3099800300022 from a linear relation with gamma-ray 3099800300023 energies (2%) 3099800300024 - Background (1-1.5%) 3099800300025 - Multiple scattering and self-shielding 3099800300026 (0.7%) 3099800300027 - gamma self-absorption (0.4%) 3099800300028 - Standard cross section (3-4%) 3099800300029 (ERR-S) - Statistical uncertainty 3099800300030 STATUS (TABLE) Taken from Beijing International Symposium of 3099800300031 Fast Neutron Physics, Beijing, 9-13 September 3099800300032 1991, p.147 Tables 1 and 2. 3099800300033 HISTORY (19930407U) HW.1.MONITOR, MONIT-REF, ERR-ANALYS added. 3099800300034 2.Point. 2 added to ERR-S, ERR-1, ERR-T 3099800300035 (19930826U) HW.1.Duplicate pointers deleted. 3099800300036 2.REFERENCE, SAMPLE, CORRECTION, STATUS 3099800300037 added. 3099800300038 3.ERR-ANALYS altered 3099800300039 (20080814A) BG+On. BIB updated. ERR-1 -> ERR-SYS 3099800300040 ENDBIB 38 0 3099800300041 NOCOMMON 0 0 3099800300042 DATA 7 19 3099800300043 EN EN-ERR DATA 1DATA 2ERR-S 2ERR-SYS 23099800300044 ERR-T 2 3099800300045 KEV KEV NO-DIM MB PER-CENT PER-CENT 3099800300046 PER-CENT 3099800300047 11.2 0.36 2.26 2509. 14. 7.23099800300048 15.7 3099800300049 12.9 0.45 2.13 2132. 12. 5.03099800300050 13. 3099800300051 14.0 0.5 1.82 1713. 12. 5.63099800300052 13.2 3099800300053 15.1 0.56 1.91 1749. 10. 5.03099800300054 11. 3099800300055 16.4 0.64 1.82 1593. 8.3 5.43099800300056 9.9 3099800300057 17.9 0.73 1.66 1328. 6.5 5.33099800300058 8.4 3099800300059 19.6 0.84 1.65 1244. 5.6 5.33099800300060 7.9 3099800300061 21.6 0.96 1.82 1291. 5.3 4.43099800300062 6.9 3099800300063 23.9 1.1 1.80 1236. 4.3 4.33099800300064 6.1 3099800300065 26.5 1.3 1.69 1062. 3.8 4.33099800300066 5.7 3099800300067 29.6 1.6 1.71 1010. 3.4 4.33099800300068 5.5 3099800300069 33.3 1.9 1.77 979. 3.0 4.23099800300070 5.2 3099800300071 37.8 2.2 1.79 925. 2.9 4.43099800300072 5.3 3099800300073 43.2 2.7 1.72 830. 2.6 4.93099800300074 5.5 3099800300075 49.8 3.4 1.83 802. 2.5 4.33099800300076 5.0 3099800300077 58.1 4.3 1.76 732. 2.2 4.33099800300078 4.8 3099800300079 68.8 5.6 1.65 632. 2.0 4.23099800300080 4.8 3099800300081 82.3 7.2 1.71 609. 2.2 5.13099800300082 5.6 3099800300083 100. 9.8 1.72 552. 3.2 11.33099800300084 11.7 3099800300085 ENDDATA 42 0 3099800300086 ENDSUBENT 85 0 3099800399999 SUBENT 30998004 19930928 31303099800400001 BIB 9 32 3099800400002 REFERENCE (J,CNP,10,(3),227,1988) in Chinese 3099800400003 REACTION 1((41-NB-93(N,G)41-NB-94,,SIG)/ 3099800400004 (79-AU-197(N,G)79-AU-198,,SIG)) 3099800400005 2(41-NB-93(N,G)41-NB-94,,SIG) 3099800400006 SAMPLE -Sample Chemical purity is 99.9%; 3099800400007 -Weight is 5.7457 g; 3099800400008 -Thickness 0.5 mm; 3099800400009 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3099800400010 MONIT-REF (,JIANG+,R,HSJ-77141,1978) 3099800400011 CORRECTION - 1. Multiple scattering, 1.038-1.074% 3099800400012 - 2. Self-shielding, 0.975-0.983%; 3099800400013 - 3. Gamma self-absorption, 0.983%; 3099800400014 1. and 2. are calculated with Monte Carlo program SESH 3099800400015 (F.H.Frohner,GA-8380 (1983)). 3099800400016 3. is calculated with Hubbell's mass absorption 3099800400017 coefficients 3099800400018 (J.H.Hubbell, J.Phys.Chem.Ref,Data,9,1023(1980). 3099800400019 ERR-ANALYS (ERR-T) Total uncertainty (4.0-10%) 3099800400020 - Flight path (1.0-6.5%) 3099800400021 - Background (1.0-1.5%) 3099800400022 - Correction to neutron energy (0.5-1.5%) 3099800400023 - Standard cross section (3-4%) 3099800400024 - Multiple scattering 3099800400025 and self shielding (0.7%) 3099800400026 - gamma self absorption (0.4%) 3099800400027 - Detector efficiency (1.0%) 3099800400028 (ERR-S) - Statistical uncertainty 3099800400029 STATUS (TABLE) Taken from Chin. Jour. Nucl.Phys.,10(1988)227 3099800400030 (APRVD) Proof-copy was approved by author and author's 3099800400031 corrections have been entered in Dec.,1989. 3099800400032 HISTORY (19930825A) HW.-New subentry (previously 32504.002).- 3099800400033 (20080814A) BG+On. Cross section ratio added. 3099800400034 ENDBIB 32 0 3099800400035 NOCOMMON 0 0 3099800400036 DATA 6 20 3099800400037 EN EN-ERR DATA 1DATA 2ERR-S 2ERR-T 23099800400038 KEV KEV NO-DIM MB PER-CENT PER-CENT 3099800400039 11.2 0.36 0.447 496. 8.3 10.0 3099800400040 12.0 0.4 0.442 464. 7.6 9.0 3099800400041 12.9 0.45 0.492 492. 7.0 8.6 3099800400042 14.0 0.50 0.499 470. 6.1 8.0 3099800400043 15.1 0.56 0.496 454. 5.2 7.1 3099800400044 16.4 0.64 0.497 439. 4.5 6.7 3099800400045 17.9 0.73 0.460 368. 4.3 6.7 3099800400046 19.6 0.84 0.470 354. 4.0 6.0 3099800400047 21.6 0.96 0.501 356. 3.4 5.4 3099800400048 23.9 1.1 0.499 333. 3.2 5.4 3099800400049 26.5 1.3 0.487 306. 3.0 5.0 3099800400050 29.6 1.6 0.477 282. 2.6 4.9 3099800400051 33.3 1.9 0.504 279. 2.5 5.3 3099800400052 37.8 2.2 0.495 256. 2.4 5.2 3099800400053 43.2 2.7 0.448 216. 2.1 4.9 3099800400054 49.8 3.4 0.430 193. 2.1 4.7 3099800400055 58.1 4.3 0.436 181. 2.0 4.5 3099800400056 68.6 5.5 0.404 155. 1.9 4.4 3099800400057 82.3 7.2 0.370 132. 1.9 5.9 3099800400058 100. 9.8 0.339 109. 3.0 10.5 3099800400059 ENDDATA 22 0 3099800400060 ENDSUBENT 59 0 3099800499999 ENDENTRY 4 0 3099899999999