ENTRY O0618 20230407 O061800000001 SUBENT O0618001 20230407 20231011 O061800100001 BIB 14 52 O061800100002 TITLE Fission of uranium and tantalum induced by 156-MeV O061800100003 protons. O061800100004 AUTHOR (C.J.Stephan,M.L.Perlman) O061800100005 INSTITUTE (2FR PAR,1USABNL) O061800100006 REFERENCE (J,PR,164,1528,1967) O061800100007 REL-REF (R,,H.W.Schmitt+,J,PR,137,B837,1965) Method of energy O061800100008 calibration of detectors. O061800100009 FACILITY (SYNCY,2FR PAR) O061800100010 SAMPLE The thin U targets were produced by vacuum deposition O061800100011 of U-F4 onto cellulose acetate supporting films, about O061800100012 25 um/cm2 thick, mounted in 11*12 cm aluminum frames. O061800100013 For Ta targets the metal was deposited in vacuum onto aO061800100014 glass surface previously coated with about 5 um/cm2 of O061800100015 carbon to facilitate removal of the Ta by flotation on O061800100016 water. The metal film could then be placed in the O061800100017 center of a thin cellulose acetate support by raising O061800100018 the support film under the floating Ta. O061800100019 Target thicknesses were about 50 um/cm2 for U and aboutO061800100020 300 um/cm2 for Ta. O061800100021 METHOD (FISCT,EXTB,SITA,COINC,PHD,BCINT) O061800100022 DETECTOR (SIBAR) Silicon surface-barrier detectors were used to O061800100023 detect and measure energies of the fission fragments. O061800100024 The sensitive volumes were cylindrical, mostly about O061800100025 24 mm in diameter and 50 um thick. Detectors O061800100026 were mounted on arms so that the angles they subtended O061800100027 at the target could be changed. Detector to O061800100028 target distance was 30 - 40 cm. O061800100029 Discriminators were set to cutoff pulses smaller than O061800100030 those corresponding to 30-MeV fission fragments. O061800100031 Energy calibration makes use of the results of O061800100032 Schmitt+, see REL-REF. O061800100033 (IOCH) A He-filled ionization chamber for relative O061800100034 beam monitoring, calibrated with the use of a Faraday O061800100035 cup. O061800100036 ANALYSIS (INTAD) Integration over the total solid angle. O061800100037 ADD-RES (ANGD) Angular correlations between fission fragments. O061800100038 (E-DIS) Single-fragment and total kinetic energy O061800100039 distributions. O061800100040 (COMP) Comparison of results with Model calculations. O061800100041 Cascade-Evaporation Model. Some comparisons with O061800100042 Liquid-Drop-Fission Model. O061800100043 ERR-ANALYS (DATA-ERR) No information about source of uncertainty O061800100044 STATUS (TABLE,,C.J.Stephan+,J,PR,164,1528,1967) Text in p.164 O061800100045 HISTORY (19980216C) AP: By Khlopin's Institute. O061800100046 (19980426A) AP: REL-REF and SAMPLE corrected. O061800100047 (19980605A) AP: REL-REF is corrected. O061800100048 (20000420U) Last checking has been done. O061800100049 (20000424A) Date is corrected O061800100050 (20001116A) Subent O0618002 was corrected according O061800100051 to O.Schwerer's remarks. O061800100052 (20001116U) Last checking has been done. O061800100053 (20230407A) SD: Corrections in all Subents. O061800100054 ENDBIB 52 0 O061800100055 COMMON 1 3 O061800100056 EN O061800100057 MEV O061800100058 156. O061800100059 ENDCOMMON 3 0 O061800100060 ENDSUBENT 59 0 O061800199999 SUBENT O0618002 20230407 20231011 O061800200001 BIB 3 4 O061800200002 REACTION (73-TA-181(P,F),,SIG) O061800200003 REL-REF (A,O0649004,M.Maurette+,C,65SALZBURG,2,307,196503) O061800200004 HISTORY (20230407A) SD: SF9=EXP deleted from REACTION code. O061800200005 Part of data moved to Subent 003. O061800200006 ENDBIB 4 0 O061800200007 NOCOMMON 0 0 O061800200008 DATA 2 1 O061800200009 DATA DATA-ERR O061800200010 MB MB O061800200011 2. 0.3 O061800200012 ENDDATA 3 0 O061800200013 ENDSUBENT 12 0 O061800299999 SUBENT O0618003 20230407 20231011 O061800300001 BIB 3 3 O061800300002 REACTION (73-TA-181(P,F),,DA,FF,RSD) O061800300003 REL-REF (A,O0649004,M.Maurette+,C,65SALZBURG,2,307,196503) O061800300004 HISTORY (20230407T) SD: Part of Subent 002. O061800300005 ENDBIB 3 0 O061800300006 NOCOMMON 0 0 O061800300007 DATA 3 1 O061800300008 ANG-CM DATA DATA-ERR O061800300009 ADEG NO-DIM NO-DIM O061800300010 0. 0.40 0.25 O061800300011 ENDDATA 3 0 O061800300012 ENDSUBENT 11 0 O061800399999 ENDENTRY 3 0 O061899999999