ENTRY C2392 20190424 C185C239200000001 SUBENT C2392001 20190424 C185C239200100001 BIB 10 38 C239200100002 TITLE Nuclear Excitation Functions, Se82(d,2n)Br82 and C239200100003 Br81(d,p)Br82 C239200100004 AUTHOR (J.A.Miskel,A.C.Wahl) C239200100005 REFERENCE (J,PR,84,700,1951) C239200100006 #doi:10.1103/PhysRev.84.700 C239200100007 INSTITUTE (1USAWAS) C239200100008 FACILITY (CYCLO,1USAWAS) C239200100009 DETECTOR (GEMUC) The Geiger tube was 1.5 inches i.d. and had a C239200100010 3 mil tungsten wire exposed for 3 inches. C239200100011 METHOD (ACTIV,STTA,CHSEP) The bombardment of a stack of C239200100012 foils was made in the beam defining slit system of C239200100013 the Washington University cyclotron. The deuteron C239200100014 beam at the normal target position passed through a C239200100015 narrow vertical slit and down an evacuated tube. The C239200100016 target foils were one foot beyond this slit. The C239200100017 foils were mounted at the rear of a Faraday cage C239200100018 which could be moved in and out of the deuteron beam C239200100019 by means of a support rod through a Wilson seal. The C239200100020 activities, other than the 34-hour Br82, produced by C239200100021 bombardment of selenium with low energy deuterons are C239200100022 short-lived compared to the 34-hour activity. The C239200100023 irradiated sodium or potassium bromide deposits were C239200100024 dissolved in water and the solution acidified with C239200100025 nitric acid and boiled to remove krypton activities. C239200100026 Silver bromide was then precipitated, digested, C239200100027 filtered onto tared filter paper, dried, and weighed C239200100028 for the chemical yield determination. The sample was C239200100029 then mounted on cardboard under half-mil aluminum and C239200100030 3 mg/cm2 Cellophane, and counted in the same geometry C239200100031 as the selenium foils. C239200100032 ERR-ANALYS (DATA-ERR,20.,30.) The relative values of the cross C239200100033 sections are believed to be reliable to 5 or 10 C239200100034 percent. The uncertainty in the absolute values may C239200100035 be as large as 20 or 30 percent because of C239200100036 uncertainties in the absolute beta-counting C239200100037 calibration. C239200100038 DECAY-DATA (35-BR-82-G,34.0HR) C239200100039 HISTORY (20190424C) BP C239200100040 ENDBIB 38 0 C239200100041 NOCOMMON 0 0 C239200100042 ENDSUBENT 41 0 C239200199999 SUBENT C2392002 20190424 C185C239200200001 BIB 4 12 C239200200002 REACTION (35-BR-81(D,P)35-BR-82,,SIG) C239200200003 SAMPLE Sodium bromide and potassium bromide deposits for the C239200200004 d,p reaction on bromine were prepared individually by C239200200005 evaporation of the salts onto half-mil aluminum in a C239200200006 bell-jar vacuum system. The area of a deposit was C239200200007 defined by a masking foil of aluminum. The aluminum C239200200008 collection foils were weighed before and after C239200200009 evaporation and the weight of salt (~1 mg/cm2) C239200200010 determined by difference. C239200200011 METHOD Cross section was obtained from two independent runs C239200200012 in which the beam current was measured. C239200200013 STATUS (CURVE) Fig. 1, page 702. C239200200014 ENDBIB 12 0 C239200200015 NOCOMMON 0 0 C239200200016 DATA 2 4 C239200200017 EN DATA C239200200018 MEV B C239200200019 8.630 0.163 C239200200020 8.946 0.180 C239200200021 9.161 0.156 C239200200022 9.718 0.166 C239200200023 ENDDATA 6 0 C239200200024 ENDSUBENT 23 0 C239200299999 SUBENT C2392003 20190424 C185C239200300001 BIB 4 10 C239200300002 REACTION (34-SE-82(D,2N)35-BR-82,,SIG) C239200300003 SAMPLE Selenium deposits of approximately ~1 mg/cm2 C239200300004 thickness were prepared by vacuum distillation of C239200300005 elemental selenium onto aluminum foils. The aluminum C239200300006 foils were about 3.6 mg/cm2 thick, the thickness of C239200300007 each foil being determined by weighing prior to the C239200300008 deposition of the selenium. C239200300009 METHOD Absolute cross section measurement. C239200300010 STATUS (CURVE) Fig. 1, page 702. C239200300011 (COREL,C2392004) Data from another set of foil C239200300012 ENDBIB 10 0 C239200300013 NOCOMMON 0 0 C239200300014 DATA 2 5 C239200300015 EN DATA C239200300016 MEV B C239200300017 7.575 0.596 C239200300018 8.123 0.682 C239200300019 8.610 0.834 C239200300020 9.163 0.873 C239200300021 9.581 0.938 C239200300022 ENDDATA 7 0 C239200300023 ENDSUBENT 22 0 C239200399999 SUBENT C2392004 20190424 C185C239200400001 BIB 4 10 C239200400002 REACTION (34-SE-82(D,2N)35-BR-82,,SIG) C239200400003 SAMPLE Selenium deposits of approximately ~1 mg/cm2 C239200400004 thickness were prepared by vacuum distillation of C239200400005 elemental selenium onto aluminum foils. The aluminum C239200400006 foils were about 3.6 mg/cm2 thick, the thickness of C239200400007 each foil being determined by weighing prior to the C239200400008 deposition of the selenium. C239200400009 METHOD Average of three runs on one set of foils. C239200400010 STATUS (CURVE) Fig. 1, page 702. C239200400011 (COREL,C2392003) Data from another set of foil C239200400012 ENDBIB 10 0 C239200400013 NOCOMMON 0 0 C239200400014 DATA 2 11 C239200400015 EN DATA C239200400016 MEV B C239200400017 3.734 0.035 C239200400018 4.575 0.109 C239200400019 5.280 0.222 C239200400020 5.956 0.352 C239200400021 6.609 0.449 C239200400022 7.181 0.554 C239200400023 7.650 0.632 C239200400024 8.139 0.774 C239200400025 8.173 0.704 C239200400026 8.699 0.747 C239200400027 9.141 0.834 C239200400028 ENDDATA 13 0 C239200400029 ENDSUBENT 28 0 C239200499999 SUBENT C2392005 20190424 C185C239200500001 BIB 4 9 C239200500002 REACTION (34-SE-82(D,2N)35-BR-82,,SIG) C239200500003 SAMPLE Selenium deposits of approximately ~1 mg/cm2 C239200500004 thickness were prepared by vacuum distillation of C239200500005 elemental selenium onto aluminum foils. The aluminum C239200500006 foils were about 3.6 mg/cm2 thick, the thickness of C239200500007 each foil being determined by weighing prior to the C239200500008 deposition of the selenium. C239200500009 METHOD Average of two runs on another set of foils. C239200500010 STATUS (CURVE) Fig. 1, page 702. C239200500011 ENDBIB 9 0 C239200500012 NOCOMMON 0 0 C239200500013 DATA 2 9 C239200500014 EN DATA C239200500015 MEV B C239200500016 4.342 0.062 C239200500017 5.104 0.130 C239200500018 5.814 0.185 C239200500019 6.421 0.465 C239200500020 7.024 0.537 C239200500021 7.569 0.648 C239200500022 8.615 0.790 C239200500023 9.111 0.862 C239200500024 9.608 0.929 C239200500025 ENDDATA 11 0 C239200500026 ENDSUBENT 25 0 C239200599999 ENDENTRY 5 0 C239299999999