ENTRY S0094 20140506 S018S009400000001 SUBENT S0094001 20140506 S018S009400100001 BIB 12 43 S009400100002 TITLE Measurement of neutron spectra from thick Be target S009400100003 bombarded with deuterons S009400100004 AUTHOR (Wang Xiaozhong, Bai Xixiang, Li Anli, Liu Weiping, S009400100005 Qi Dahai, Yuan Yuan, Si Guojian) S009400100006 INSTITUTE (3CPRAEP) S009400100007 REFERENCE (J,CNST,5,193,1994) S009400100008 FACILITY (VDGT,3CPRAEP) 13 MV Tandem accelerator S009400100009 SAMPLE The target with diameter 25 mm was composed of S009400100010 Be(99.2%), O(0.49%), Fe(0.115%), Al(0.056%), C(0.059%),S009400100011 Si(0.018%) and others(0.062%). It is necessary to take S009400100012 the target thickness of about 3 mm, to stop all S009400100013 deutrons with the highest incident energy (Ed=22 MeV). S009400100014 METHOD (TOF) In order to achieve a time interval of 1 S009400100015 microsecond corresponding to a neutron energy range S009400100016 from 0.5 to 30 MeV for the flight path of 6.76 m, S009400100017 beam pulse frequency of the accelerator must be S009400100018 chosen as 1 MHz. S009400100019 DETECTOR (SCIN) A stilbene scintillator 1 inch in thickness S009400100020 and diameter covered with a cylindrical aluminum S009400100021 container. It was positioned at 0 degree with respect S009400100022 to the beam direct ion. S009400100023 ERR-ANALYS No data given. In neutron spectrum measurements, the S009400100024 uncertainty of neutron detector efficiency is one of S009400100025 main error sources. In the energy range below 20 MeV, S009400100026 the efficiency curves of the neutron detector were S009400100027 determined by combining MC calculations using a S009400100028 standard code NEFF7 with experimental calibration S009400100029 measurement using a miniature 252Cf ionization S009400100030 chamber. In the energy range above 20 MeV, the S009400100031 efficiency were determined by measuring neutron S009400100032 angular distribution of T(d,n) reaction. S009400100033 CORRECTION Neutron flux attenuation in air, target and the S009400100034 heavily shielded detector and scattering neutrons S009400100035 material was calculated. S009400100036 ANALYSIS The fluence-averaged mean neutron energies of the S009400100037 neutron spectra are given as a function of the S009400100038 incident energy for several thresholds. The full S009400100039 neutron spectra were obtained by treating high energy S009400100040 En>1.8 MeV and low energy En<2.0 MeV portion S009400100041 respectively and then connecting them in a small S009400100042 overlap energy range from 1.8 and 2.0 MeV. S009400100043 HISTORY (20140506C) Compiled by ZHUANG Youxiang and S009400100044 CHEN Guochang (CNDC). S009400100045 ENDBIB 43 0 S009400100046 COMMON 1 3 S009400100047 ANG S009400100048 ADEG S009400100049 0. S009400100050 ENDCOMMON 3 0 S009400100051 ENDSUBENT 50 0 S009400199999 SUBENT S0094002 20140506 S018S009400200001 BIB 3 4 S009400200002 REACTION (4-BE-9(D,X)0-NN-1,,PY/DA/DE,,TT/CH) S009400200003 EN-SEC (E,N) S009400200004 STATUS (TABLE) All measured data are taken from Table 1 at S009400200005 page 199 in J,CNST,5,(4),193,1994 S009400200006 ENDBIB 4 0 S009400200007 NOCOMMON 0 0 S009400200008 DATA 3 232 S009400200009 EN E DATA S009400200010 MEV MEV P/MEVMUCSR S009400200011 13.5 0.7 1809. E+06 S009400200012 13.5 0.9 3177. E+06 S009400200013 13.5 1.1 2728. E+06 S009400200014 13.5 1.3 2614. E+06 S009400200015 13.5 1.5 2568. E+06 S009400200016 13.5 1.7 2562. E+06 S009400200017 13.5 1.9 2612. E+06 S009400200018 13.5 2.1 2656. E+06 S009400200019 13.5 2.3 2739. E+06 S009400200020 13.5 2.5 2693. E+06 S009400200021 13.5 2.7 2818. E+06 S009400200022 13.5 2.9 2932. E+06 S009400200023 13.5 3.2 3006. E+06 S009400200024 13.5 3.6 2914. E+06 S009400200025 13.5 4.0 2914. E+06 S009400200026 13.5 4.4 2984. E+06 S009400200027 13.5 4.8 3080. E+06 S009400200028 13.5 5.2 3078. E+06 S009400200029 13.5 5.6 3009. E+06 S009400200030 13.5 6.0 2822. E+06 S009400200031 13.5 6.4 2672. E+06 S009400200032 13.5 6.8 2569. E+06 S009400200033 13.5 7.2 2398. E+06 S009400200034 13.5 7.6 2214. E+06 S009400200035 13.5 8.0 2042. E+06 S009400200036 13.5 8.4 1823. E+06 S009400200037 13.5 8.8 1601. E+06 S009400200038 13.5 9.25 1378. E+06 S009400200039 13.5 9.75 1179. E+06 S009400200040 13.5 10.25 953. E+06 S009400200041 13.5 10.75 764. E+06 S009400200042 13.5 11.25 613. E+06 S009400200043 13.5 11.75 404. E+06 S009400200044 13.5 12.25 300. E+06 S009400200045 13.5 12.75 94. E+06 S009400200046 13.5 13.25 66.7 E+06 S009400200047 13.5 13.75 65.4 E+06 S009400200048 13.5 14.5 57.4 E+06 S009400200049 13.5 15.5 45. E+06 S009400200050 13.5 16.5 28. E+06 S009400200051 13.5 17.5 10.1 E+06 S009400200052 13.5 18.5 0.6 E+06 S009400200053 15.0 0.7 2712. E+06 S009400200054 15.0 0.9 3846. E+06 S009400200055 15.0 1.1 3385. E+06 S009400200056 15.0 1.3 3111. E+06 S009400200057 15.0 1.5 3041. E+06 S009400200058 15.0 1.7 3108. E+06 S009400200059 15.0 1.9 3256. E+06 S009400200060 15.0 2.1 3321. E+06 S009400200061 15.0 2.3 3339. E+06 S009400200062 15.0 2.5 3354. E+06 S009400200063 15.0 2.7 3459. E+06 S009400200064 15.0 2.9 3543. E+06 S009400200065 15.0 3.2 3416. E+06 S009400200066 15.0 3.6 3273. E+06 S009400200067 15.0 4.0 3283. E+06 S009400200068 15.0 4.4 3431. E+06 S009400200069 15.0 4.8 3635. E+06 S009400200070 15.0 5.2 3670. E+06 S009400200071 15.0 5.6 3718. E+06 S009400200072 15.0 6.0 3574. E+06 S009400200073 15.0 6.4 3615. E+06 S009400200074 15.0 6.8 3536. E+06 S009400200075 15.0 7.2 3357. E+06 S009400200076 15.0 7.6 3073. E+06 S009400200077 15.0 8.0 2848. E+06 S009400200078 15.0 8.4 2641. E+06 S009400200079 15.0 8.8 2440. E+06 S009400200080 15.0 9.25 2194. E+06 S009400200081 15.0 9.75 1994. E+06 S009400200082 15.0 10.25 1678. E+06 S009400200083 15.0 10.75 1443. E+06 S009400200084 15.0 11.25 1204. E+06 S009400200085 15.0 11.75 994. E+06 S009400200086 15.0 12.25 822. E+06 S009400200087 15.0 12.75 610. E+06 S009400200088 15.0 13.25 422. E+06 S009400200089 15.0 13.75 287. E+06 S009400200090 15.0 14.5 79.9 E+06 S009400200091 15.0 15.5 58.1 E+06 S009400200092 15.0 16.5 53.3 E+06 S009400200093 15.0 17.5 42.4 E+06 S009400200094 15.0 18.5 21.3 E+06 S009400200095 15.0 19.5 3.7 E+06 S009400200096 17.0 0.5 2636. E+06 S009400200097 17.0 0.7 4018. E+06 S009400200098 17.0 0.9 4793. E+06 S009400200099 17.0 1.1 4318. E+06 S009400200100 17.0 1.3 3812. E+06 S009400200101 17.0 1.5 3705. E+06 S009400200102 17.0 1.7 3880. E+06 S009400200103 17.0 1.9 4032. E+06 S009400200104 17.0 2.1 4091. E+06 S009400200105 17.0 2.3 4158. E+06 S009400200106 17.0 2.5 4238. E+06 S009400200107 17.0 2.7 4400. E+06 S009400200108 17.0 2.9 4572. E+06 S009400200109 17.0 3.2 4577. E+06 S009400200110 17.0 3.6 4409. E+06 S009400200111 17.0 4.0 4262. E+06 S009400200112 17.0 4.4 4249. E+06 S009400200113 17.0 4.8 4324. E+06 S009400200114 17.0 5.2 4434. E+06 S009400200115 17.0 5.6 4537. E+06 S009400200116 17.0 6.0 4480. E+06 S009400200117 17.0 6.4 4577. E+06 S009400200118 17.0 6.8 4713. E+06 S009400200119 17.0 7.2 4624. E+06 S009400200120 17.0 7.6 4374. E+06 S009400200121 17.0 8.0 4288. E+06 S009400200122 17.0 8.4 4113. E+06 S009400200123 17.0 8.8 3872. E+06 S009400200124 17.0 9.25 3362. E+06 S009400200125 17.0 9.75 3038. E+06 S009400200126 17.0 10.25 2691. E+06 S009400200127 17.0 10.75 2417. E+06 S009400200128 17.0 11.25 2270. E+06 S009400200129 17.0 11.75 1938. E+06 S009400200130 17.0 12.25 1663. E+06 S009400200131 17.0 12.75 1412. E+06 S009400200132 17.0 13.25 1174. E+06 S009400200133 17.0 13.75 950. E+06 S009400200134 17.0 14.5 675. E+06 S009400200135 17.0 15.5 323. E+06 S009400200136 17.0 16.5 83.5 E+06 S009400200137 17.0 17.5 83.1 E+06 S009400200138 17.0 18.5 61.8 E+06 S009400200139 17.0 19.5 45.4 E+06 S009400200140 17.0 20.5 26.2 E+06 S009400200141 17.0 21.5 5.4 E+06 S009400200142 20.0 0.7 4678. E+06 S009400200143 20.0 0.9 6508. E+06 S009400200144 20.0 1.1 6520. E+06 S009400200145 20.0 1.3 5921. E+06 S009400200146 20.0 1.5 5329. E+06 S009400200147 20.0 1.7 4762. E+06 S009400200148 20.0 1.9 4469. E+06 S009400200149 20.0 2.1 4462. E+06 S009400200150 20.0 2.3 4543. E+06 S009400200151 20.0 2.5 4657. E+06 S009400200152 20.0 2.7 4869. E+06 S009400200153 20.0 2.9 5116. E+06 S009400200154 20.0 3.2 5167. E+06 S009400200155 20.0 3.6 5015. E+06 S009400200156 20.0 4.0 4957. E+06 S009400200157 20.0 4.4 5146. E+06 S009400200158 20.0 4.8 5450. E+06 S009400200159 20.0 5.2 5723. E+06 S009400200160 20.0 5.6 6000. E+06 S009400200161 20.0 6.0 6000. E+06 S009400200162 20.0 6.4 6304. E+06 S009400200163 20.0 6.8 6607. E+06 S009400200164 20.0 7.2 6704. E+06 S009400200165 20.0 7.6 6685. E+06 S009400200166 20.0 8.0 6630. E+06 S009400200167 20.0 8.4 6638. E+06 S009400200168 20.0 8.8 6535. E+06 S009400200169 20.0 9.25 6093. E+06 S009400200170 20.0 9.75 5871. E+06 S009400200171 20.0 10.25 5542. E+06 S009400200172 20.0 10.75 5039. E+06 S009400200173 20.0 11.25 4569. E+06 S009400200174 20.0 11.75 4135. E+06 S009400200175 20.0 12.25 3745. E+06 S009400200176 20.0 12.75 3295. E+06 S009400200177 20.0 13.25 2959. E+06 S009400200178 20.0 13.75 2533. E+06 S009400200179 20.0 14.5 2098. E+06 S009400200180 20.0 15.5 1487. E+06 S009400200181 20.0 16.5 1081. E+06 S009400200182 20.0 17.5 681. E+06 S009400200183 20.0 18.5 280. E+06 S009400200184 20.0 19.5 99.6 E+06 S009400200185 20.0 20.5 78.6 E+06 S009400200186 20.0 21.5 77.9 E+06 S009400200187 20.0 22.5 62.4 E+06 S009400200188 20.0 23.5 31.8 E+06 S009400200189 20.0 24.5 7.1 E+06 S009400200190 22.0 0.5 6254. E+06 S009400200191 22.0 0.7 8560. E+06 S009400200192 22.0 0.9 9752. E+06 S009400200193 22.0 1.1 8712. E+06 S009400200194 22.0 1.3 7551. E+06 S009400200195 22.0 1.5 6876. E+06 S009400200196 22.0 1.7 6426. E+06 S009400200197 22.0 1.9 6118. E+06 S009400200198 22.0 2.1 5905. E+06 S009400200199 22.0 2.3 5730. E+06 S009400200200 22.0 2.5 5621. E+06 S009400200201 22.0 2.7 5740. E+06 S009400200202 22.0 2.9 5939. E+06 S009400200203 22.0 3.2 5923. E+06 S009400200204 22.0 3.6 5712. E+06 S009400200205 22.0 4.0 5549. E+06 S009400200206 22.0 4.4 5712. E+06 S009400200207 22.0 4.8 6079. E+06 S009400200208 22.0 5.2 6243. E+06 S009400200209 22.0 5.6 6552. E+06 S009400200210 22.0 6.0 6783. E+06 S009400200211 22.0 6.4 7067. E+06 S009400200212 22.0 6.8 7650. E+06 S009400200213 22.0 7.2 7771. E+06 S009400200214 22.0 7.6 7758. E+06 S009400200215 22.0 8.0 8133. E+06 S009400200216 22.0 8.4 8131. E+06 S009400200217 22.0 8.8 8216. E+06 S009400200218 22.0 9.25 7888. E+06 S009400200219 22.0 9.75 7798. E+06 S009400200220 22.0 10.25 7432. E+06 S009400200221 22.0 10.75 6958. E+06 S009400200222 22.0 11.25 6722. E+06 S009400200223 22.0 11.75 5908. E+06 S009400200224 22.0 12.25 5676. E+06 S009400200225 22.0 12.75 5164. E+06 S009400200226 22.0 13.25 4649. E+06 S009400200227 22.0 13.75 4142. E+06 S009400200228 22.0 14.5 3420. E+06 S009400200229 22.0 15.5 2709. E+06 S009400200230 22.0 16.5 2072. E+06 S009400200231 22.0 17.5 1524. E+06 S009400200232 22.0 18.5 1007. E+06 S009400200233 22.0 19.5 683. E+06 S009400200234 22.0 20.5 396. E+06 S009400200235 22.0 21.5 204. E+06 S009400200236 22.0 22.5 114. E+06 S009400200237 22.0 23.5 91.6 E+06 S009400200238 22.0 24.5 78.1 E+06 S009400200239 22.0 25.5 48.9 E+06 S009400200240 22.0 26.5 24.8 E+06 S009400200241 22.0 27.5 7.8 E+06 S009400200242 22.0 28.5 0.7 E+06 S009400200243 ENDDATA 234 0 S009400200244 ENDSUBENT 243 0 S009400299999 ENDENTRY 2 0 S009499999999