ENTRY O0682 20021205 0000O068200000001 SUBENT O0682001 20021205 0000O068200100001 BIB 14 38 O068200100002 TITLE Cl-37(p,n)Ar-37 excitation function up to 24 MeV: O068200100003 study of (P,N) reactions. O068200100004 AUTHOR (R.Kishore, R.Colle, S.Katcoff, J.B.Cumming) O068200100005 INSTITUTE (1USABNL) O068200100006 REFERENCE (J,PR/C,12,21,1975) O068200100007 HISTORY (20000124C) O068200100008 (20021205U) Last checking has been done. O068200100009 SAMPLE Thin NaCl targets, approx. 2 mg/cm**2 thickness, of O068200100010 natural isotopic abundances were made by vacuum O068200100011 deposition on 0.5-mm thick Al-disks. The target O068200100012 thicknesses were determined by weighing and were O068200100013 checked in some cases by chemical analysis. The O068200100014 agreement between the two methods was better than 2%. O068200100015 The targets were enclosed in Al gas cells 2.5-cm diam.,O068200100016 2.0-cm deep, having 6.3-mg/cm**2 HAVAR windows. O068200100017 In addition, three other NaCl targets were sealed O068200100018 between Ag foils under vacuum in order to check the O068200100019 reliability of the Ar-37 recovery. O068200100020 DETECTOR (PROPC) Internal gas proportional counter. O068200100021 FACILITY (VDGT,1USABNL) O068200100022 METHOD (ACTIV) Average beam intensities were of the order of O068200100023 a few hundred nanoampers. Typical irradiation times O068200100024 were 30 min, approximately. O068200100025 (BCINT) O068200100026 ANALYSIS (DECAY) O068200100027 ADD-RES (COMP).The Vegas-DFF cascade evaporation calculations. O068200100028 (DECAY) Measured half-life of Ar-37 by authors was O068200100029 obtained to be 35.02+-0.02 days. It is weighted mean O068200100030 value based on 28 measurements. O068200100031 INC-SPECT *En-rsl*.Effective energy resolution varies from O068200100032 260-KeV at 2 MeV to 200-KeV at 23.5 MeV. O068200100033 ERR-ANALYS (EN-ERR).Energy uncertainty are less or equal 25 KeV. O068200100034 (ERR-1).Uncertainties in the thickness measurements. O068200100035 (ERR-2).Uncertainties in the beam intensities. O068200100036 (ERR-3).Error in the chemical recoveries. O068200100037 (ERR-4).Error in the counting efficiencies. O068200100038 (ERR-5).The error in the counting statistics. O068200100039 STATUS (TABLE) O068200100040 ENDBIB 38 0 O068200100041 COMMON 6 3 O068200100042 EN-RSL ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 O068200100043 KEV PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT O068200100044 260. 2. 1. 2. 1. 1.O068200100045 ENDCOMMON 3 0 O068200100046 ENDSUBENT 45 0 O068200199999 SUBENT O0682002 20021205 0000O068200200001 BIB 3 5 O068200200002 REACTION (17-CL-37(P,N)18-AR-37,,SIG) O068200200003 ERR-ANALYS (ERR-T).The error is based on the agreement of O068200200004 dublicate measurements, O068200200005 FLAG (1.) NaCl Target enclosed in gas cells. O068200200006 (2.) NaCl Target sealed in Ag-folis. O068200200007 ENDBIB 5 0 O068200200008 COMMON 2 3 O068200200009 EN-ERR ERR-T O068200200010 MEV PER-CENT O068200200011 0.025 6. O068200200012 ENDCOMMON 3 0 O068200200013 DATA 3 28 O068200200014 EN DATA FLAG O068200200015 MEV MB NO-DIM O068200200016 2.02 9.2 1. O068200200017 2.35 27.1 1. O068200200018 3.02 47.4 1. O068200200019 3.57 47.9 1. O068200200020 3.65 95.9 1. O068200200021 4.27 140. 1. O068200200022 4.77 163. 1. O068200200023 4.86 154. 1. O068200200024 5.91 263. 1. O068200200025 7.02 340. 1. O068200200026 8.1 356. 1. O068200200027 8.17 358. 2. O068200200028 9.14 356. 1. O068200200029 9.78 365. 2. O068200200030 10.1 365. 1. O068200200031 11.24 320. 1. O068200200032 11.24 370. 1. O068200200033 11.38 382. 2. O068200200034 12.28 307. 1. O068200200035 13.3 247. 1. O068200200036 14.33 183. 1. O068200200037 14.33 196. 1. O068200200038 16.87 96.7 1. O068200200039 16.88 96.3 1. O068200200040 19.92 50.4 1. O068200200041 19.92 50.8 1. O068200200042 23.45 31.7 1. O068200200043 23.45 36.6 1. O068200200044 ENDDATA 30 0 O068200200045 ENDSUBENT 44 0 O068200299999 ENDENTRY 2 0 O068299999999