ENTRY M0302 20160224 M082M030200000001
SUBENT M0302001 20160224 M082M030200100001
BIB 17 46 M030200100002
TITLE Photoneutrons from K and Ca. M030200100003
AUTHOR (V.Emma,C.Milone,R.Rinzivillo) M030200100004
INSTITUTE (2ITYCAT) M030200100005
REFERENCE (J,NC,14,(5),1149,1959) M030200100006
FACILITY (BETAT,2ITYTUR) M030200100007
INC-SOURCE (BRST) M030200100008
INC-SPECT The diameter of the gamma beam at the place of the M030200100009
targets was 35 mm. The doses of gamma-irradiation M030200100010
were 3690 roentgen for Ca and 6027 roentgen for K. M030200100011
SAMPLE A cylinder of natural Ca (hight = 20 mm, diameter = M030200100012
29 mm, weght = 19 g) and a spherical target of M030200100013
natural K (diameter = 30 mm, weght = 12 g). M030200100014
METHOD (REC) M030200100015
PART-DET (P) M030200100016
DETECTOR (PLATE) Ilford L4 emulsion (thickness = 400 mu, area M030200100017
= 1 x 3 inches). The nuclear plates were screened by M030200100018
3 mm thick Pb foils against the low energy photons M030200100019
diffused by the target. M030200100020
CORRECTION A) for the probability of escape of recoil proton M030200100021
tracks from the emulsion, M030200100022
B) for the neutron absorption in the target, in the M030200100023
window of the vessel containing the K target and in M030200100024
Pb foils. M030200100025
ERR-ANALYS (ERR-S) Statistical errors are presented. M030200100026
ADD-RES (COMP) The evaporation theory was used. The fraction M030200100027
of neutrons exceeding the theoretical values at high M030200100028
neutron energies is reported. M030200100029
COMMENT The spectra show that at least 50% of the neutrons M030200100030
above 2 MeV are due to direct process. For Ca and M030200100031
also for K a second resonance seems to exist about M030200100032
10 MeV above the threshold. At 31 MeV photoneutron M030200100033
yields for Ca and K at angle = 90 degrees for E > 2 M030200100034
MeV are about the same. M030200100035
REL-REF (M,M0310001,G.Cortini+,J,NC,9,85,1958) Description M030200100036
of method by means of which the plates were scanned M030200100037
and the proton recoil tracks were analysed. M030200100038
(O,M0356001,A.Agodi+,C,58PARIS,625,1958) The first M030200100039
results on the energy spectrum of photoneutrons of M030200100040
Ca. M030200100041
(M,M0289001,G.Cortini+,J,NC,14,54,1959). Description M030200100042
of the method of theoretical calculations. M030200100043
HISTORY (19881227C) Data were compiled at SCJAD of Saratov M030200100044
State University. M030200100045
(19910202A) Corrected by V.Varlamov, V.Mclane. M030200100046
(20160224A) Corrected by SD and VV: dates, STATUS, M030200100047
REACTION, lowercase. M030200100048
ENDBIB 46 0 M030200100049
COMMON 1 3 M030200100050
EN-MAX M030200100051
MEV M030200100052
31.0 M030200100053
ENDCOMMON 3 0 M030200100054
ENDSUBENT 53 0 M030200199999
SUBENT M0302002 20160224 M082M030200200001
BIB 3 4 M030200200002
REACTION (20-CA-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200200003
STATUS (CURVE) Fig.3 from NC,14,(5),1149,1959. M030200200004
HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200200005
BRA, STATUS. M030200200006
ENDBIB 4 0 M030200200007
COMMON 1 3 M030200200008
ANG M030200200009
ADEG M030200200010
90.0 M030200200011
ENDCOMMON 3 0 M030200200012
DATA 4 21 M030200200013
E E-ERR DATA ERR-S M030200200014
MEV MEV ARB-UNITS ARB-UNITS M030200200015
1.75 0.25 35.4 2.7 M030200200016
2.25 0.25 34.8 2.7 M030200200017
2.75 0.25 26.4 2.5 M030200200018
3.25 0.25 33.8 2.6 M030200200019
3.75 0.25 27.9 2.5 M030200200020
4.25 0.25 24.8 2.5 M030200200021
4.75 0.25 17.3 1.5 M030200200022
5.25 0.25 14.1 1.4 M030200200023
5.75 0.25 11.5 1.3 M030200200024
6.25 0.25 10.5 1.4 M030200200025
6.75 0.25 7.0 1.2 M030200200026
7.25 0.25 4.9 0.8 M030200200027
7.75 0.25 6.5 1.2 M030200200028
8.25 0.25 6.7 1.2 M030200200029
8.75 0.25 5.5 1.1 M030200200030
9.25 0.25 5.7 1.4 M030200200031
9.75 0.25 7.4 1.9 M030200200032
10.50 0.50 3.0 1.4 M030200200033
11.50 0.50 1.1 0.9 M030200200034
12.50 0.50 0.9 0.9 M030200200035
13.50 0.50 1.3 0.8 M030200200036
ENDDATA 23 0 M030200200037
ENDSUBENT 36 0 M030200299999
SUBENT M0302003 20160224 M082M030200300001
BIB 3 4 M030200300002
REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200300003
STATUS (CURVE) Fig.4 from NC,14,(5),1149,1959. M030200300004
HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200300005
BRA, STATUS. M030200300006
ENDBIB 4 0 M030200300007
COMMON 1 3 M030200300008
ANG M030200300009
ADEG M030200300010
90.0 M030200300011
ENDCOMMON 3 0 M030200300012
DATA 4 21 M030200300013
E E-ERR DATA ERR-S M030200300014
MEV MEV ARB-UNITS ARB-UNITS M030200300015
1.75 0.25 28.3 2.5 M030200300016
2.25 0.25 32.7 3.1 M030200300017
2.75 0.25 29.4 2.9 M030200300018
3.25 0.25 21.7 2.8 M030200300019
3.75 0.25 26.1 3.0 M030200300020
4.25 0.25 22.9 3.3 M030200300021
4.75 0.25 18.9 3.0 M030200300022
5.25 0.25 14.9 2.0 M030200300023
5.75 0.25 15.5 2.0 M030200300024
6.25 0.25 8.6 1.5 M030200300025
6.75 0.25 8.0 1.5 M030200300026
7.25 0.25 11.4 1.7 M030200300027
7.75 0.25 7.0 1.4 M030200300028
8.25 0.25 5.1 1.5 M030200300029
8.75 0.25 2.5 1.1 M030200300030
9.25 0.25 3.3 1.2 M030200300031
9.75 0.25 4.3 1.4 M030200300032
10.50 0.50 2.9 0.9 M030200300033
11.50 0.50 1.2 0.7 M030200300034
12.50 0.50 0.8 0.8 M030200300035
13.50 0.50 0.5 0.6 M030200300036
ENDDATA 23 0 M030200300037
ENDSUBENT 36 0 M030200399999
SUBENT M0302004 20160224 M082M030200400001
BIB 3 4 M030200400002
REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200400003
STATUS (CURVE) Fig.5 from NC,14,(5),1149,1959. M030200400004
HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200400005
BRA, STATUS. M030200400006
ENDBIB 4 0 M030200400007
COMMON 1 3 M030200400008
ANG M030200400009
ADEG M030200400010
60.0 M030200400011
ENDCOMMON 3 0 M030200400012
DATA 4 10 M030200400013
E E-ERR DATA ERR-S M030200400014
MEV MEV ARB-UNITS ARB-UNITS M030200400015
2.5 0.5 30.7 3.7 M030200400016
3.5 0.5 23.8 3.5 M030200400017
4.5 0.5 20.5 3.5 M030200400018
5.5 0.5 18.1 3.5 M030200400019
6.5 0.5 12.0 2.9 M030200400020
7.5 0.5 9.7 2.7 M030200400021
8.5 0.5 8.5 2.7 M030200400022
9.5 0.5 2.3 1.2 M030200400023
11.0 1.0 2.5 0.8 M030200400024
13.0 1.0 1.5 0.7 M030200400025
ENDDATA 12 0 M030200400026
ENDSUBENT 25 0 M030200499999
SUBENT M0302005 20160224 M082M030200500001
BIB 3 4 M030200500002
REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200500003
STATUS (CURVE) Fig.6 from NC,14,(5),1149,1959. M030200500004
HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200500005
BRA, STATUS. M030200500006
ENDBIB 4 0 M030200500007
COMMON 1 3 M030200500008
ANG M030200500009
ADEG M030200500010
120.0 M030200500011
ENDCOMMON 3 0 M030200500012
DATA 4 10 M030200500013
E E-ERR DATA ERR-S M030200500014
MEV MEV ARB-UNITS ARB-UNITS M030200500015
2.5 0.5 29.6 4.4 M030200500016
3.5 0.5 29.4 4.8 M030200500017
4.5 0.5 19.7 4.3 M030200500018
5.5 0.5 15.0 4.0 M030200500019
6.5 0.5 7.6 2.5 M030200500020
7.5 0.5 7.1 3.2 M030200500021
8.5 0.5 5.1 3.0 M030200500022
9.5 0.5 7.2 3.8 M030200500023
11.0 1.0 3.1 1.3 M030200500024
13.0 1.0 2.7 1.3 M030200500025
ENDDATA 12 0 M030200500026
ENDSUBENT 25 0 M030200599999
ENDENTRY 5 0 M030299999999