ENTRY 23433 20180922 22722343300000001
SUBENT 23433001 20180922 22722343300100001
BIB 15 108 2343300100002
TITLE Measurement of neutron kerma factors for carbon and 2343300100003
A-150 plastic at neutron energies of 26.3 MeV and 2343300100004
37.8 MeV 2343300100005
AUTHOR (H.Schuhmacher, H.J.Brede, R.Henneck, A.Kunz, 2343300100006
J.P.Meulders, P.Pihet, U.J.Schrewe) 2343300100007
INSTITUTE (2GERPTB) H.Schuhmacher, H.J.Brede, U.J.Schrewe 2343300100008
(2SWTBAS) R.Henneck 2343300100009
(2GERSBU) A.Kunz, P.Pihet 2343300100010
(2BLGLVN) J.P.Meulders 2343300100011
REFERENCE (J,PMB,37,1265,1992) 2343300100012
MONITOR (1-H-1(N,EL)1-H-1,,SIG) For neutron fluence. 2343300100013
n-p CS of Fink+ were interpolated by phase shift 2343300100014
analysis of Arndt+ (see REL-REFs). 2343300100015
REL-REF (I,,R.Henneck+,J,NIM/A,259,329,1987) 2343300100016
Details of facility 2343300100017
(M,,H.G.Menzel+,J,PMB,29,1537,1984) 2343300100018
(M,,G.Buehler+,J,PMB,31,601,1986) 2343300100019
(M,,P.Pihet+,R,IAEA-TECDOC-506,91,1989) 2343300100020
(R,,R.A.Arndt+,J,PR/D,35,128,1987) 2343300100021
Nucleon-nucleon partial-wave analysis to 1100 MeV 2343300100022
(R,22207002,G.Fink+,J,NP/A,518,561,1990) 2343300100023
(M,,U.J.Schrewe+,J,NIM/A,299,226,1990) 2343300100024
TOF method details, PC-TOF measurement. 2343300100025
(N,,R.A.Cecil+,J,NIM,161,439,1979) 2343300100026
Monte Carlo code 2343300100027
(R,23434001,P.Pihet+,J,PMB,37,1957,1992) 2343300100028
(R,,R.S.Caswell+,J,RR,83,217,1980) 2343300100029
(R,,D.J.Brenner,J,PMB,29,437,1984) 2343300100030
Three refs. for data used in analysis. 2343300100031
FACILITY (CYCLO,2SWTPSI) 2343300100032
INC-SOURCE (P-BE) 2 mm thick 9Be target was bombarded by protons 2343300100033
Proton beam was measured by Faraday cup. 2343300100034
Proton beam current ~2muA, frequency ~ 12MHz. 2343300100035
For TOF measurement - 1MHz frequency, 2343300100036
current - 0.05 muA for NE213, 0.4muA for PC measurement2343300100037
Proton energies 31.9 and 43.3 MeV. 2343300100038
METHOD (TOF) TOF by NE213 scintillator and PCs to evaluate the2343300100039
kerma correction at lower neutron energy. 2343300100040
(PSD) Pulse shape technique to discriminate photon 2343300100041
induced events form neutron induced events at 2343300100042
neutron fluence measurement. 2343300100043
DETECTOR (PROPC) Low pressure proportional counters (PCS) with 2343300100044
walls made from of A-150 tissue substitute (TEPC) or 2343300100045
graphite (CPC), both 2.5mm thick, - to determine kerma.2343300100046
Filled with propane-based tissue equivalent(TE) gas at 2343300100047
4.5kPa pressure . 2343300100048
(TELES) Proton recoil telescope (PRT) - to determine 2343300100049
the neutron fluence. 2343300100050
Consist of: 2343300100051
- polyethylene radiator foil of 144,7mg/cm2 areal 2343300100052
density, mounted on 1.0mm Ta backing, 2343300100053
- two proportional counters, filled with isobutane at 2343300100054
50kPa pressure, 2343300100055
- two solid state detectors: 2343300100056
1) 1.0mm thick Si surface barrier detector at 27 MeV, 2343300100057
2.5mm thick one for 39 MeV, 2343300100058
2) 5.0mm thick Si(Li) detector. 2343300100059
(SCIN) NE102 scintillator (1mm thickness,75mm diameter)2343300100060
as an additional neutron beam monitor . 2343300100061
NE213 of 51mm diameter,51mm length and stilbene 2343300100062
detector of 25.4mm diameter, 25.4mm length - for 2343300100063
spectral neutron fluence measurement. 2343300100064
Monte Carlo code was used fro calibration. 2343300100065
CORRECTION At kerma measurement: 2343300100066
for attenuation and scattering by wall. 2343300100067
At neutron flux determination: 2343300100068
backgrounds ( measured), 2343300100069
influence of the PRT components, e.g. scattering on 2343300100070
apertures and other parts, simulated by Monte Carlo 2343300100071
code; 2343300100072
for deadtime loses, 2343300100073
inelastic proton scattering , 2343300100074
neutron fluence attenuation. 2343300100075
ANALYSIS Kerma factor kf=K/F, K=K0+K1+K2, 2343300100076
K-kinetic energy released in matter(kerma), 2343300100077
F- fluence measured; 2343300100078
kerma was determined from relation 2343300100079
K0/K=(1-K1/K)/(1+K2/K0) 2343300100080
tot - total, 2343300100081
0 - for neutrons of nominal energies from E2 to Emax, 2343300100082
1 - neutrons from 0 to E1, 2343300100083
2 - neutrons from E1 to E2 . 2343300100084
E1 = 10 MeV, 2343300100085
E2 = 20 MeV for 26.3 MeV neutrons, 2343300100086
32 MeV for 37.8 MeV neutrons. 2343300100087
K1/K was measured with PCS-TOF technique. 2343300100088
K2/K0 was calculated by measured fluences and kerma 2343300100089
factors from measurement of P.Pihet+ (in 14.9-20.MeV 2343300100090
region), extrapolated to lower energy using the data of2343300100091
R.S.Caswell+ and to higher energies - data of 2343300100092
D.J.Brenner+, normalized to the measured values at 2343300100093
20 MeV . 2343300100094
ERR-ANALYS (DATA-ERR) 2343300100095
Kerma uncertainty 3.9% for 27 MeV, 4.1% for 39 MeV for2343300100096
A-150, for carbon - 6.2% and 7.2%, respectively. 2343300100097
Uncertainty of neutron fluence(determined by PRT) 5.6% 2343300100098
resulting from: 2343300100099
hydrogen areal density of the radiator 0.4% 2343300100100
relative geometry of PRT 0.5% 2343300100101
differential n-p cross section 4.% 2343300100102
relative spectral neutron fluence 2.5% 2343300100103
correction factors ( see Table 2) 2343300100104
statistical uncertainty 1.5% 2343300100105
fit of the calculated spectra to the measured 1.8% 2343300100106
ADD-RES Kerma factor ratio for ICRU muscle tissue to A-150 was2343300100107
calculated on the basis of the measured kerma factor to2343300100108
be 0.93 . 2343300100109
HISTORY (20180922C) M.M. 2343300100110
ENDBIB 108 0 2343300100111
NOCOMMON 0 0 2343300100112
ENDSUBENT 111 0 2343300199999
SUBENT 23433002 20180922 22722343300200001
BIB 5 16 2343300200002
REACTION (6-C-12(N,TOT),,KER) Kerma factor 2343300200003
SAMPLE Graphite 2343300200004
MISC-COL (MISC1) K0/Q, pGy/nC 2343300200005
(MISC2) F0/Q, 1/(cm2 * nC) 2343300200006
REL-REF (A,,P.Pihet+,J,PMB,37,1957,1992) Exp.points 2343300200007
(A,,J.L.Romero+,C,85SANTA,,687,1985) 2343300200008
(D,,M.A.Behrooz+,J,PMB,26,507,1981) 2343300200009
(A,,D.J.Brenner,J,PMB,29,437,1984) 2343300200010
(D,,P.J.Dimbylow,J,PMB,25,637,1980) 2343300200011
(A,,P.J.Dimbylow,J,PMB,27,989,1982) 2343300200012
(A,,A.H.Wells,J,RR,80,1,1979) 2343300200013
(D,,R.S.Caswell+,J,RR,83,217,1980) 2343300200014
(D,,R.S.Caswell+,J,RPD,23,11,1988) 2343300200015
6 theor.curves 2343300200016
STATUS (TABLE) Table 4 of J.Phys.in Medicine and Biology,37, 2343300200017
1265,1992 2343300200018
ENDBIB 16 0 2343300200019
NOCOMMON 0 0 2343300200020
DATA 8 2 2343300200021
EN EN-ERR DATA DATA-ERR MISC1 MISC1-ERR 2343300200022
MISC2 MISC2-ERR 2343300200023
MEV MEV PGY*CM2 PGY*CM2 SEE TEXT SEE TEXT 2343300200024
SEE TEXT SEE TEXT 2343300200025
26.3 2.9 35.5 3.0 406. 26. 2343300200026
11.44 0.64 2343300200027
37.8 2.5 42.6 3.9 418. 30. 2343300200028
9.81 0.55 2343300200029
ENDDATA 8 0 2343300200030
ENDSUBENT 29 0 2343300299999
SUBENT 23433003 20180922 22722343300300001
BIB 4 6 2343300300002
REACTION (6-C-CMP(N,TOT),,KER) Kerma factor 2343300300003
SAMPLE A-150 plastic (76.8% - carbon) 2343300300004
MISC-COL (MISC1) K0/Q, pGy/nC 2343300300005
(MISC2) F0/Q, 1/(cm2 * nC) 2343300300006
STATUS (TABLE) Table 4 of J.Phys.in Medicine and Biology,37, 2343300300007
1265,1992 2343300300008
ENDBIB 6 0 2343300300009
NOCOMMON 0 0 2343300300010
DATA 8 2 2343300300011
EN EN-ERR DATA DATA-ERR MISC1 MISC1-ERR 2343300300012
MISC2 MISC2-ERR 2343300300013
MEV MEV PGY*CM2 PGY*CM2 SEE TEXT SEE TEXT 2343300300014
SEE TEXT SEE TEXT 2343300300015
26.3 2.9 75.6 5.4 865. 37. 2343300300016
11.4 0.64 2343300300017
37.8 2.5 79.0 5.6 775. 34. 2343300300018
9.81 0.55 2343300300019
ENDDATA 8 0 2343300300020
ENDSUBENT 19 0 2343300399999
SUBENT 23433004 20180922 22722343300400001
BIB 4 9 2343300400002
REACTION ((6-C-CMP(N,TOT),,KER)/(6-C-12(N,TOT),,KER)) 2343300400003
Ratio of kerma factors 2343300400004
SAMPLE Graphite, 2343300400005
A-150 plastic (76.8% - carbon) 2343300400006
COMMENT Of authors . 2343300400007
Ratio was determined with lower error than individual 2343300400008
kerma factors. 2343300400009
STATUS (TABLE) Text,page 1276 of J.Phys.in Medicine and 2343300400010
Biology,37,1265,1992 2343300400011
ENDBIB 9 0 2343300400012
NOCOMMON 0 0 2343300400013
DATA 4 2 2343300400014
EN EN-ERR DATA DATA-ERR 2343300400015
MEV MEV NO-DIM NO-DIM 2343300400016
26.3 2.9 2.17 0.13 2343300400017
37.8 2.5 1.91 0.11 2343300400018
ENDDATA 4 0 2343300400019
ENDSUBENT 18 0 2343300499999
SUBENT 23433005 20180921 22722343300500001
BIB 9 26 2343300500002
REACTION (6-C-12(N,TOT),,KER) Kerma factor 2343300500003
TITLE Determination of kerma factors for A-150 plastic and 2343300500004
carbon for neutron energies above 20 MeV 2343300500005
AUTHOR (U.J.Schrewe, H.J.Brede, R.Henneck, S.Gerdung, A.Kunz, 2343300500006
H.G.Menzel,J.P.Meulders,P.Pihet,H.Schuhmacher,I.Slypen)2343300500007
REFERENCE (C,91JUELIC,,586,1991) 2343300500008
SAMPLE Graphite 2343300500009
REL-REF (A,,P.Pihet+,J,PMB,37,1957,1992) Exp.points 2343300500010
Mentioned in Proc.of Conf.on Nucl.Data for Sci. 2343300500011
and Technol.,Juelich ,586,1991 as "to be published" 2343300500012
(D,,M.A.Behrooz+,J,PMB,26,507,1981) 2343300500013
(A,,D.J.Brenner,J,PMB,29,437,1984) 2343300500014
(A,,P.J.Dimbylow,J,PMB,25,637,1980) 2343300500015
(A,,A.H.Wells,J,RR,80,1,1979) 2343300500016
(D,,R.S.Caswell+,J,RR,83,217,1980) 2343300500017
(D,,R.S.Caswell+,J,RPD,23,11,1988) 2343300500018
6 theor.curves A-F on fig.2 of Proc.of Conf.on Nucl. 2343300500019
Data for Sci.and Technol.,Juelich ,586,1991 2343300500020
MISC-COL (MISC1) K0/Ktot 2343300500021
(MISC2) K0/Q, pGy/nC 2343300500022
(MISC3) F0/Q, 1/(cm2 * nC) 2343300500023
ERR-ANALYS (DATA-ERR) One standard deviation, no other information2343300500024
STATUS (TABLE) Table 1 of Proc.of Conf.on Nucl.Data for Sci. 2343300500025
and Technol.,Juelich ,p.586,1991 2343300500026
(SPSDD,23433002) Next different analysis in 23433 2343300500027
- K2/K0 determined by data of P.Pihet+ (not R.A.Cecil+)2343300500028
ENDBIB 26 0 2343300500029
NOCOMMON 0 0 2343300500030
DATA 10 2 2343300500031
EN EN-ERR DATA DATA-ERR MISC1 MISC1-ERR 2343300500032
MISC2 MISC2-ERR MISC3 MISC3-ERR 2343300500033
MEV MEV PGY*CM2 PGY*CM2 NO-DIM NO-DIM 2343300500034
SEE TEXT SEE TEXT SEE TEXT SEE TEXT 2343300500035
26.3 2.9 34.7 2.9 0.721 0.009 2343300500036
395. 24. 11.44 0.64 2343300500037
37.8 2.5 41.0 3.7 0.605 0.011 2343300500038
402. 29. 9.81 0.55 2343300500039
ENDDATA 8 0 2343300500040
ENDSUBENT 39 0 2343300599999
SUBENT 23433006 20180921 22722343300600001
BIB 9 25 2343300600002
REACTION (6-C-CMP(N,TOT),,KER) Kerma factor 2343300600003
TITLE Determination of kerma factors for A-150 plastic and 2343300600004
carbon for neutron energies above 20 MeV 2343300600005
AUTHOR (U.J.Schrewe, H.J.Brede, R.Henneck, S.Gerdung, A.Kunz, 2343300600006
H.G.Menzel,J.P.Meulders,P.Pihet,H.Schuhmacher,I.Slypen)2343300600007
REFERENCE (C,91JUELIC,,586,1991) 2343300600008
SAMPLE A-150 plastic (76.8% - carbon) 2343300600009
REL-REF (A,,P.Pihet+,J,PMB,37,1957,1992) Exp.points 2343300600010
Mentioned in Proc.of Conf.on Nucl.Data for Sci. 2343300600011
and Technol.,Juelich,586,1991 as "to be published" 2343300600012
(D,,M.A.Behrooz+,J,PMB,26,507,1981) 2343300600013
(A,,D.J.Brenner,J,PMB,29,437,1984) 2343300600014
(A,,P.J.Dimbylow,J,PMB,25,637,1980) 2343300600015
(A,,A.H.Wells,J,RR,80,1,1979) 2343300600016
(D,,R.S.Caswell+,J,RR,83,217,1980) 2343300600017
5 theor.curves A-E on fig.1 of Proc.of Conf.on Nucl. 2343300600018
Data for Sci.and Technol.,Juelich ,,586,1991 2343300600019
MISC-COL (MISC1) K0/Ktot 2343300600020
(MISC2) K0/Q, pGy/nC 2343300600021
(MISC3) F0/Q, 1/(cm2 * nC) 2343300600022
ERR-ANALYS (DATA-ERR) One standard deviation, no other information2343300600023
STATUS (TABLE) Table 1 of Proc.of Conf.on Nucl.Data for Sci. 2343300600024
and Technol.,Juelich ,p.586,1991 2343300600025
(SPSDD,23433003) Next different analysis in 23433 2343300600026
- K2/K0 determined by data of P.Pihet+ (not R.A.Cecil+)2343300600027
ENDBIB 25 0 2343300600028
NOCOMMON 0 0 2343300600029
DATA 10 2 2343300600030
EN EN-ERR DATA DATA-ERR MISC1 MISC1-ERR 2343300600031
MISC2 MISC2-ERR MISC3 MISC3-ERR 2343300600032
MEV MEV PGY*CM2 PGY*CM2 NO-DIM NO-DIM 2343300600033
SEE TEXT SEE TEXT SEE TEXT SEE TEXT 2343300600034
26.3 2.9 75.2 5.1 0.562 0.011 2343300600035
858. 33. 11.44 0.64 2343300600036
37.8 2.5 78.4 5.3 0.493 0.011 2343300600037
769. 31. 9.81 0.55 2343300600038
ENDDATA 8 0 2343300600039
ENDSUBENT 38 0 2343300699999
SUBENT 23433007 20180921 22722343300700001
BIB 8 14 2343300700002
REACTION ((6-C-CMP(N,TOT),,KER)/(6-C-12(N,TOT),,KER)) 2343300700003
TITLE Determination of kerma factors for A-150 plastic and 2343300700004
carbon for neutron energies above 20 MeV 2343300700005
AUTHOR (U.J.Schrewe, H.J.Brede, R.Henneck, S.Gerdung, A.Kunz, 2343300700006
H.G.Menzel,J.P.Meulders,P.Pihet,H.Schuhmacher,I.Slypen)2343300700007
REFERENCE (C,91JUELIC,,586,1991) 2343300700008
SAMPLE A-150 plastic (76.8% - carbon) 2343300700009
COMMENT Of authors . 2343300700010
Ratio was determined with lower error than individual 2343300700011
kerma factors. 2343300700012
ERR-ANALYS (DATA-ERR) One standard deviation, no other information2343300700013
STATUS (TABLE) Text,page 587 of Proc.of Conf.on Nucl.Data for 2343300700014
Sci.and Technol.,Juelich, p.586,1991 2343300700015
(SPSDD,23433004) Next analysis 2343300700016
ENDBIB 14 0 2343300700017
NOCOMMON 0 0 2343300700018
DATA 4 2 2343300700019
EN EN-ERR DATA DATA-ERR 2343300700020
MEV MEV NO-DIM NO-DIM 2343300700021
26.3 2.9 2.15 0.13 2343300700022
37.8 2.5 1.85 0.11 2343300700023
ENDDATA 4 0 2343300700024
ENDSUBENT 23 0 2343300799999
ENDENTRY 7 0 2343399999999