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