ENTRY A0318 20210719 A098A031800000001 SUBENT A0318001 20210719 A098A031800100001 BIB 13 30 A031800100002 TITLE A comparative investigation of nuclear reactions A031800100003 leading to the formation of short-lived 30P and A031800100004 optimization of its production via the 27Al(alpha,n)30PA031800100005 process at a compact cyclotron A031800100006 AUTHOR (S.M.Qaim,H.Ollig,G.Blessing) A031800100007 REFERENCE (J,ARI,33,271,1982) A031800100008 INSTITUTE (2GERJUL) A031800100009 FACILITY (CYCLO,2GERJUL) Compact cyclotron CV28. A031800100010 METHOD (STTA,ACTIV,EXTB) A031800100011 DETECTOR (GELI) 32 cm3 Ge(Li) and positron detector. A031800100012 COMMENT /By authors/ In the case of 30P, which only gives A031800100013 rise to annihilation radiation, it was really 2,5 min A031800100014 30P and not 2.03 min O-15. Therefore, besides gamma- A031800100015 ray spectroscopy, counting of positrons above 2.0 MeV A031800100016 /i.e. above the cut-off energy of the positrons from A031800100017 O-15/ was also applied. Both the counting methods A031800100018 gave similar results, confirming thereby that the A031800100019 activity under investigation was pure 30P. A031800100020 RAD-DET (15-P-30,AR) A031800100021 (15-P-30,B+) A031800100022 DECAY-DATA (15-P-30,2.5MIN) A031800100023 REL-REF (R,,C.F.Williamson+,R,CEA-R-3042,1966) - The A031800100024 degradation of the projectile energy while passing A031800100025 through each stack was calculated using the A031800100026 range-energy formula described by Williamson et al. A031800100027 ADD-RES (TTY-C) Optimization of the 27-Al(alpha,n)30P A031800100028 production method. A031800100029 HISTORY (19861212C) By CAJAD A031800100030 (20210719A) SD:Updated to new date formats,lower case. A031800100031 Corrections in all Subents. A031800100032 ENDBIB 30 0 A031800100033 NOCOMMON 0 0 A031800100034 ENDSUBENT 33 0 A031800199999 SUBENT A0318002 20210719 A098A031800200001 BIB 8 19 A031800200002 REACTION (14-SI-28(HE3,X)15-P-30,(CUM),SIG) A031800200003 The authors did not write about possibility of 30P A031800200004 production via (He3,n) reaction and decay 30S(1.24 sec)A031800200005 MONITOR (22-TI-0(HE3,X)23-V-48,,SIG) A031800200006 MONIT-REF (A0169009,R.Weinreich+,J,ARI,31,223,1980) A031800200007 DECAY-MON (23-V-48,16.1D,DG,983.,1., A031800200008 DG,1312.,1.) A031800200009 SAMPLE Each Si-foil piece was mounted on a Ti-foil (purity A031800200010 99.6%, thickness 20 mum, diameter 13 mm) by A031800200011 fixing it with glue at two peripheral points of the A031800200012 Ti-foil. As a further support to the Si-foil, a 2 mm A031800200013 broad Al-ring was fixed at the periphery of the A031800200014 Si-foil. A031800200015 ERR-ANALYS (DATA-ERR) No information about source of uncertainty A031800200016 The total errors in the cross sections were estimated A031800200017 to lie between 15 and 20% A031800200018 STATUS (CURVE) Fig.1 from Appl.Rad.Isot.,33(1982)271 A031800200019 HISTORY (20210719A) SD: SF9=EXP deleted from REACTION code. A031800200020 EN-ERR -> EN-ERR-DIG. A031800200021 ENDBIB 19 0 A031800200022 COMMON 1 3 A031800200023 EN-ERR-DIG A031800200024 MEV A031800200025 0.24 A031800200026 ENDCOMMON 3 0 A031800200027 DATA 4 16 A031800200028 EN DATA +DATA-ERR -DATA-ERR A031800200029 MEV MB MB MB A031800200030 12.91 16. 5. 4. A031800200031 13.80 51. 4. 5. A031800200032 14.66 61. 7. 7. A031800200033 15.60 65. 7. 6. A031800200034 17.29 51. 8. 6. A031800200035 17.80 53. 4. 7. A031800200036 18.22 53.1 2.7 6.2 A031800200037 22.29 41. 5. 5. A031800200038 23.47 30.1 5. 2.7 A031800200039 24.49 33. 3.3 2.1 A031800200040 25.68 27.8 1.9 3.7 A031800200041 28.23 30.1 4.7 1.7 A031800200042 29.00 34. 4. 5. A031800200043 31.62 24.5 2.7 2.4 A031800200044 33.32 27.4 2.7 3. A031800200045 34.59 22.4 2.5 2.4 A031800200046 ENDDATA 18 0 A031800200047 ENDSUBENT 46 0 A031800299999 SUBENT A0318003 20210719 A098A031800300001 BIB 8 23 A031800300002 REACTION (16-S-32(D,A)15-P-30,,SIG) A031800300003 MONITOR (13-AL-27(D,X)11-NA-24,,SIG) A031800300004 MONIT-REF (P0124002,P.A.Lenk+,J,PR,116,1229,1959) A031800300005 DECAY-MON (11-NA-24,15.01HR,DG,1369.,1., A031800300006 DG,2754.,1.) A031800300007 SAMPLE By converting ordinary sulphur (purity 99.9999%) into A031800300008 plastic sulphur (through melting and pouring into A031800300009 water) and subsequent pressing at a pressure of 2.5 A031800300010 t/cm2 on to a Ti-foil (thickness 20 um, diameter 13 A031800300011 mm) it was possible to obtain 'S'-pellet on Ti-foil A031800300012 was further supported by fixing a 2 mm broad Al-ring A031800300013 at the periphery of the 'S-'pellet. These samples A031800300014 containing metastable state of did not deteriorate A031800300015 over several days. Nonetheless, all the samples were A031800300016 prepared freshly prior to each irradiation. A031800300017 ERR-ANALYS (DATA-ERR) No information about source of uncertainty A031800300018 The total errors in the cross sections were estimated A031800300019 to lie between 15 and 20% A031800300020 (ERR-1) Uncertainty in the target thickness A031800300021 STATUS (CURVE) Fig.1 from Appl.Rad.Isot.,33(1982)271 A031800300022 HISTORY (20210719A) SD: SF9=EXP deleted from REACTION code. A031800300023 SF3=P+A -> X; SF5=UND deleted from MONITOR code. A031800300024 EN-ERR -> EN-ERR-DIG. A031800300025 ENDBIB 23 0 A031800300026 COMMON 2 3 A031800300027 ERR-1 EN-ERR-DIG A031800300028 PER-CENT MEV A031800300029 5. 0.24 A031800300030 ENDCOMMON 3 0 A031800300031 DATA 3 9 A031800300032 EN DATA DATA-ERR A031800300033 MEV MB MB A031800300034 4.86 6.1 1.2 A031800300035 6.96 18.1 3.2 A031800300036 7.58 14.8 2.2 A031800300037 8.07 17.5 2.7 A031800300038 8.86 31. 5. A031800300039 10.11 41. 6. A031800300040 11.29 20. 3. A031800300041 11.67 14.1 3.2 A031800300042 13.05 11.4 2.2 A031800300043 ENDDATA 11 0 A031800300044 ENDSUBENT 43 0 A031800399999 SUBENT A0318004 20210719 A098A031800400001 BIB 8 19 A031800400002 REACTION (14-SI-28(A,X)15-P-30,(CUM),SIG) A031800400003 The authors did not write about possibility 30P A031800400004 production via (alpha,2n) reaction and decay A031800400005 S-30 (1.24sec). A031800400006 MONITOR (13-AL-27(A,2P)13-AL-29,,SIG) A031800400007 MONIT-REF (B0174007,H.J.Probst+,J,ARI,27,431,1976) A031800400008 DECAY-MON (13-AL-29,6.6MIN,DG,1273.,0.891) A031800400009 SAMPLE Each Si-foil piece was mounted on a Ti-foil (purity A031800400010 99.6%, thickness 20 mum, diameter 13 mm) by A031800400011 fixing it with glue at two peripheral points of the A031800400012 Ti-foil. As a further support to the Si-foil, a 2 mm A031800400013 broad Al-ring was fixed at the periphery of the A031800400014 Si-foil. A031800400015 ERR-ANALYS (DATA-ERR) No information about source of uncertainty A031800400016 The total errors in the cross sections were estimated A031800400017 to lie between 15 and 20% A031800400018 STATUS (CURVE) Fig.1 from Appl.Rad.Isot.,33(1982)271 A031800400019 HISTORY (20210719A) SD: SF9=EXP deleted from REACTION code. A031800400020 EN-ERR -> EN-ERR-DIG. A031800400021 ENDBIB 19 0 A031800400022 COMMON 1 3 A031800400023 EN-ERR-DIG A031800400024 MEV A031800400025 0.24 A031800400026 ENDCOMMON 3 0 A031800400027 DATA 4 7 A031800400028 EN DATA +DATA-ERR -DATA-ERR A031800400029 MEV MB MB MB A031800400030 16.69 4. 0.8 0.4 A031800400031 17.93 7. 0.8 1.1 A031800400032 18.86 15.1 3.9 2. A031800400033 21.88 37. 5. 6. A031800400034 22.72 55. 5. 5. A031800400035 24.95 70. 12. 7. A031800400036 25.65 62. 8. 8. A031800400037 ENDDATA 9 0 A031800400038 ENDSUBENT 37 0 A031800499999 ENDENTRY 4 0 A031899999999