ENTRY A0528 20160317 A084A052800000001 SUBENT A0528001 20160317 A084A052800100001 BIB 10 27 A052800100002 TITLE Formation of Pu-236 and Pu-237 by proton-induced A052800100003 reactions on Np-237. A052800100004 AUTHOR (J.Aaltonen,M.Brenner,V.D.Dmitriev,A.M.Fridkin, A052800100005 V.B.Funshtein,E.A.Gromova,S.-J.Heselius,V.A.Jakovlev, A052800100006 Yu.A.Selitskiy) A052800100007 INSTITUTE (2SF HLS) A052800100008 (2SF ABA) A052800100009 (4RUSRI) A052800100010 REFERENCE (J,ARI,44,831,1993) A052800100011 SAMPLE Two piles of 7 neptunium targets on aluminum backings A052800100012 0.1 mm thick were prepared. The targets were separatedA052800100013 with 0.005 mm thick aluminum foils. A052800100014 FACILITY (CYCLO,2SF ABA) The MGC-20 cyclotron of Abo Akademi A052800100015 University. A052800100016 ADD-RES (TTY-C) Thick-target yield curves,based on the A052800100017 measured cross sections, were derived. A052800100018 ERR-ANALYS (ERR-T) Main sources of total uncertainty are: A052800100019 (ERR-1) Uncertainty in the thickness of the neptunium A052800100020 layer on the aluminum backing surface A052800100021 (ERR-2) The integrated charge of protons passing A052800100022 through the targets during irradiation was determined A052800100023 by means of a Faraday cup with precision of 5%. A052800100024 STATUS (TABLE) Tbl.1 from ARI,44,831,1993 A052800100025 HISTORY (19950207C) A052800100026 (19950310U) A052800100027 (20160317A) SD:Updated to new date formats,lower case. A052800100028 BIB update. Small corrections in all Subents. A052800100029 ENDBIB 27 0 A052800100030 COMMON 2 3 A052800100031 ERR-1 ERR-2 A052800100032 PER-CENT PER-CENT A052800100033 3. 5. A052800100034 ENDCOMMON 3 0 A052800100035 ENDSUBENT 34 0 A052800199999 SUBENT A0528002 20160317 A084A052800200001 BIB 6 8 A052800200002 REACTION (93-NP-237(P,N)94-PU-237,,SIG) A052800200003 COMMENT /By authors/.the cross section Np-237(p,n)Pu-237 A052800200004 was determined by a relative method. A052800200005 DECAY-DATA (94-PU-237,,DG) A052800200006 DETECTOR (GELI).A planar Ge-detector with a beryllium window. A052800200007 METHOD (CHSEP,BCINT,ACTIV) A052800200008 SAMPLE The thick neptunium targets,approximately 2 mg/cm**2 A052800200009 thickness,were used. A052800200010 ENDBIB 8 0 A052800200011 NOCOMMON 0 0 A052800200012 DATA 3 7 A052800200013 EN DATA ERR-T A052800200014 MEV MB MB A052800200015 10.4 1.27 0.37 A052800200016 11.8 2.81 0.20 A052800200017 12.9 3.72 0.27 A052800200018 14.0 4.54 0.36 A052800200019 15.0 3.93 0.21 A052800200020 16.0 5.38 0.51 A052800200021 17.0 5.24 0.27 A052800200022 ENDDATA 9 0 A052800200023 ENDSUBENT 22 0 A052800299999 SUBENT A0528003 20160317 A084A052800300001 BIB 9 17 A052800300002 REACTION (93-NP-237(P,X)93-NP-236-M,,SIG) A052800300003 DECAY-DATA (93-NP-236-M,22.5HR,B-) A052800300004 (94-PU-236,,A) A052800300005 SAMPLE The thin neptunium targets,90 mug/cm**2 thickness, A052800300006 were used. A052800300007 METHOD (BCINT,ACTIV) A052800300008 FLAG (1.) This value was obtained by interpolation. A052800300009 COMMENT /By authors/.the activity of Pu-236 formed in the A052800300010 Np-237(p,n+p+d)Pu-236 reaction was determined A052800300011 separately by measuring the plutonium alpha-emission A052800300012 of the irradiated 90 mug/cm**2 thick neptunium targets A052800300013 at 7,23,92 hr and at 2 months after the end of A052800300014 bombardment. A052800300015 DETECTOR (SIBAR).A surface-barrier silicon detector. A052800300016 STATUS (DEP,A0528005) A052800300017 HISTORY (20160317A) SD: SF3=N+P -> X, SF4=Np-236 -> Np-236m in A052800300018 REACTION code and DECAY-DATA. A052800300019 ENDBIB 17 0 A052800300020 NOCOMMON 0 0 A052800300021 DATA 4 7 A052800300022 EN DATA ERR-T FLAG A052800300023 MEV MB MB NO-DIM A052800300024 10.9 1.39 0.89 A052800300025 12.1 0.53 0.66 A052800300026 13.3 2.07 1.45 A052800300027 14.3 5.20 1.40 1. A052800300028 15.3 9.25 1.43 A052800300029 16.3 15.25 0.69 A052800300030 17.5 24.62 0.86 A052800300031 ENDDATA 9 0 A052800300032 ENDSUBENT 31 0 A052800399999 SUBENT A0528004 20160317 A084A052800400001 BIB 7 12 A052800400002 REACTION (93-NP-237(P,2N)94-PU-236,IND,SIG).Eob. A052800400003 METHOD (BCINT,ACTIV) A052800400004 DECAY-DATA (94-PU-236,,A) A052800400005 FLAG (1.) This value was obtained by interpolation as the A052800400006 difference between the total cross section of Pu-236 A052800400007 formation,measured two months after irradiation,and theA052800400008 interpolated value of sigma (p,pn+d) multiplied by W, A052800400009 where W is the known branching ratio of Np-236. A052800400010 DETECTOR (SIBAR).A surface-barrier silicon detector. A052800400011 STATUS (DEP,A0528005) A052800400012 SAMPLE The thin neptunium targets,90 mug/cm**2 thickness, A052800400013 were used. A052800400014 ENDBIB 12 0 A052800400015 NOCOMMON 0 0 A052800400016 DATA 4 7 A052800400017 EN DATA ERR-T FLAG A052800400018 MEV MB MB NO-DIM A052800400019 10.9 1.69 0.32 A052800400020 12.1 6.87 0.27 A052800400021 13.3 12.68 0.56 A052800400022 14.3 14.72 0.76 1. A052800400023 15.3 12.06 0.53 A052800400024 16.3 8.79 0.24 A052800400025 17.5 5.73 0.19 A052800400026 ENDDATA 9 0 A052800400027 ENDSUBENT 26 0 A052800499999 SUBENT A0528005 20160317 A084A052800500001 BIB 1 1 A052800500002 REACTION (93-NP-237(P,X)94-PU-236,CUM,SIG) A052800500003 ENDBIB 1 0 A052800500004 NOCOMMON 0 0 A052800500005 DATA 3 7 A052800500006 EN DATA ERR-T A052800500007 MEV MB MB A052800500008 10.9 2.59 0.18 A052800500009 12.1 7.29 0.26 A052800500010 13.3 13.87 0.32 A052800500011 14.3 17.16 0.37 A052800500012 15.3 16.82 0.36 A052800500013 16.3 16.13 0.35 A052800500014 17.5 17.50 0.40 A052800500015 ENDDATA 9 0 A052800500016 ENDSUBENT 15 0 A052800599999 ENDENTRY 5 0 A052899999999