ENTRY B0011 20011220 0000B001100000001 SUBENT B0011001 20011220 0000B001100100001 BIB 13 32 B001100100002 TITLE Relative Excitations of the Pu-237 Shape Isomers B001100100003 AUTHOR (R.VANDENBOSCH, P.A.RUSSO, G.SLETTEN, M.MEHTA) B001100100004 INSTITUTE (1USAWAU) B001100100005 REFERENCE (J,PR/C,8,1080,1973) B001100100006 FACILITY (VDGT,1USAWAU) B001100100007 DETECTOR (SOLST).For Detection of Prompt Fission Fragments B001100100008 (TRD).For Detection of Spontaneous Fission Fragments. B001100100009 The Collimated Recoiling Compound Nuclei from a Thin B001100100010 Target Travel Down an Evacuated Path Surronded For the B001100100011 First 12 Inches in Near 2Pi Axial Geometry by Plastic B001100100012 Foils. B001100100013 METHOD (SITA,EXTB,REC,TOF) B001100100014 SAMPLE 92-U-235, Enrichment 93% U-235, Thickness B001100100015 48 Microgram/Cm**2,Evaporated onto a Ni- And Cu-BackingB001100100016 ERR-ANALYS (DATA-ERR) The Tabulated Errors are Standard DeviationsB001100100017 Of a Least-Squares Fit to a Two-Component Decay Curve.B001100100018 Systematic Errors are not Included. B001100100019 ADD-RES (POT,STRUC) B001100100020 The Excitation Energy of the 1120-Nsec Spontaneous - B001100100021 Fission Isomer of 237-Pu has Been Shown to be 0.30+- B001100100022 0.15 MeV Above That of the 82-Nsec Isomer. B001100100023 ANALYSIS (DECAY) The Excitation Fucnions have Been Fitted with aB001100100024 Modified Jackson Neutron Evapration Model to Extract B001100100025 The Thresholds. B001100100026 REL-REF (N,,R.VANDENBOCH,J,PR/C,5,1428,1972) Jackson Model. B001100100027 HISTORY (19750313C)Lapf B001100100028 (19940524A) Some Corrections have Been Included by B001100100029 CAJAD B001100100030 (19971210A) Bib Section is Corrected, Lower Case. B001100100031 Rel-Ref B001100100032 Is Addedd. Analysis is Added. B001100100033 (20011010U) Last checking has been done. B001100100034 ENDBIB 32 0 B001100100035 NOCOMMON 0 0 B001100100036 ENDSUBENT 35 0 B001100199999 SUBENT B0011002 20011220 0000B001100200001 BIB 6 16 B001100200002 REACTION 1((92-U-235(A,2N)94-PU-237-M1,,SIG,,REL,EXP)/ B001100200003 (92-U-235(A,F),PR,SIG,,REL,EXP)) B001100200004 2((92-U-235(A,2N)94-PU-237-M2,,SIG,,REL,EXP)/ B001100200005 (92-U-235(A,F),PR,SIG,,REL,EXP)) B001100200006 RAD-DET 1(94-PU-237-M1,SF) Spontaneous Fission B001100200007 2(94-PU-237-M2,SF) Spontaneous Fission B001100200008 PART-DET (FF).Prompt Fission B001100200009 DECAY-DATA1(94-PU-237-M1,82.NSEC,SF) B001100200010 2(94-PU-237-M2,1120.NSEC,SF) B001100200011 It is Uncertain, Whether the 1120 Nsec Isomer Decays B001100200012 By Spontaneous Fission Directly or by Gamma Rays B001100200013 Feeding the 82 Nsec Isomer. B001100200014 COMMENT The Values have to be Divided by a Factor of About B001100200015 10**7 to Give Peak Ratios Consistent with Measured B001100200016 Absolute Values. B001100200017 STATUS (TABLE) B001100200018 ENDBIB 16 0 B001100200019 NOCOMMON 0 0 B001100200020 DATA 5 11 B001100200021 EN DATA 1DATA-ERR 1DATA 2DATA-ERR 2 B001100200022 MEV NO-DIM NO-DIM NO-DIM NO-DIM B001100200023 22. 3.6 0.6 3.9 1.4 B001100200024 22.1 9.7 1.5 4. 2. B001100200025 22.2 15. 3. 3.2 3.2 B001100200026 22.3 10. 3. 8.6 4. B001100200027 22.5 20. 4. 36. 8. B001100200028 22.7 14. 4. 21. 6. B001100200029 23. 44. 8. 121. 18. B001100200030 23.5 73. 9. 142. 53. B001100200031 24. 60. 9. 154. 21. B001100200032 25. 41. 4. 71. 8. B001100200033 25.5 37. 3. 49. 5. B001100200034 ENDDATA 13 0 B001100200035 ENDSUBENT 34 0 B001100299999 ENDENTRY 2 0 B001199999999