ENTRY D0361 20051215 D044D036100000001 SUBENT D0361001 20051215 D044D036100100001 BIB 12 50 D036100100002 TITLE Measurement and analysis of alpha particle induced D036100100003 reactions on Praseodymium D036100100004 AUTHOR (M.Afzal Ansari,N.P.M.Sathik,D.Singh,M.H.Rashid) D036100100005 INSTITUTE (3INDMUA,3INDVEC) D036100100006 REFERENCE (J,JPJ,74,1150,2005) D036100100007 FACILITY (CYCLO,3INDVEC) Variable Energy Cyclotron Centre D036100100008 METHOD (STTA,ACTIV) D036100100009 MONITOR The collimated alpha-particle beam was monitored by D036100100010 the charge collection method, using Faradays cup, D036100100011 kept behind the target stack and coupled to a D036100100012 current integrator. D036100100013 SAMPLE Targets were made by depositing specpure Pr6O11 of D036100100014 thickness 5 mg/cm2 on aluminum backing of uniform D036100100015 thickness 6.75 mg/cm2 by vacuum evaporation technique. D036100100016 The aluminium backing served as energy degrader for D036100100017 alpha-particle. D036100100018 DETECTOR (GELI) 100 cm3 Ge (Li) detector along with associated D036100100019 electronics coupled with CANBERA-88 multichannel D036100100020 analyzer D036100100021 ERR-ANALYS (EN-ERR) Scale error D036100100022 (ERR-T) Total error. The factors likely to introduce D036100100023 errors in the present measurements and their estimates D036100100024 are given as: D036100100025 (i) Targets of different dimensions were weighted on D036100100026 an electronic balance and numbers of nuclei D036100100027 present in the target were measured. The D036100100028 uncertainty in the estimate of number of target D036100100029 nuclei is expected to be less than 1 %. D036100100030 (ii) Error in the fluctuations of the beam current D036100100031 has been incorporated by taking the weighted D036100100032 average of aplha-paricle beam current and is D036100100033 found to be less than 5%. D036100100034 (iii) The error introduced in the determination D036100100035 of the photo-peak area of the characteristic D036100100036 gamma-rays were limited within 2-5%. D036100100037 (iv) The error due to uncertainty in detector D036100100038 eft1ciency was estimated to be less than 5%. D036100100039 (v) The errors due to decrease in beam intensity due D036100100040 to scattering while alpha-particle beam traverses D036100100041 through the stack is estimared to be less than 1%.D036100100042 (vi) The inherent uncertainty in the energy of the D036100100043 alpha-particle beam, i.e., O.5MeV at 50 MeV D036100100044 alpha-particle and the energy spread associated D036100100045 with the thickness of each target in the stack D036100100046 contributes < 4% to the alpha-particle energy. D036100100047 (vii) Error associated with the straggling of the D036100100048 alpha-particle is estimated to be negligibly smallD036100100049 STATUS (TABLE) Tabl.2 from the article D036100100050 Entry approved by Dr. M.Afzal Ansari D036100100051 HISTORY (20051215C) SD D036100100052 ENDBIB 50 0 D036100100053 NOCOMMON 0 0 D036100100054 ENDSUBENT 53 0 D036100199999 SUBENT D0361002 20051215 D044D036100200001 BIB 2 3 D036100200002 REACTION (59-PR-141(A,N)61-PM-144,,SIG) D036100200003 DECAY-DATA (61-PM-144,349.D,DG,477.,0.422,DG,618.,0.991, D036100200004 DG,697.,1.0) D036100200005 ENDBIB 3 0 D036100200006 NOCOMMON 0 0 D036100200007 DATA 4 6 D036100200008 EN EN-ERR DATA ERR-T D036100200009 MEV MEV MB MB D036100200010 15.71 0.94 19.9 3.2 D036100200011 18.24 0.90 139.8 17.8 D036100200012 25.97 0.82 21.3 3.8 D036100200013 30.14 0.79 11.9 2.4 D036100200014 35.92 0.74 10.0 2.1 D036100200015 44.57 0.72 5.2 1.7 D036100200016 ENDDATA 8 0 D036100200017 ENDSUBENT 16 0 D036100299999 SUBENT D0361003 20051215 D044D036100300001 BIB 2 2 D036100300002 REACTION (59-PR-141(A,2N)61-PM-143,,SIG) D036100300003 DECAY-DATA (61-PM-143,265.D,DG,742.,0.385) D036100300004 ENDBIB 2 0 D036100300005 NOCOMMON 0 0 D036100300006 DATA 4 5 D036100300007 EN EN-ERR DATA ERR-T D036100300008 MEV MEV MB MB D036100300009 18.24 0.90 168.1 21.2 D036100300010 25.97 0.82 472.5 56.7 D036100300011 30.14 0.79 191.8 23.6 D036100300012 35.92 0.74 99.5 12.6 D036100300013 44.57 0.72 66.6 9.7 D036100300014 ENDDATA 7 0 D036100300015 ENDSUBENT 14 0 D036100399999 ENDENTRY 3 0 D036199999999