ENTRY O0917 20221124 O091O0917 0 1 SUBENT O0917001 20221124 O091O0917 1 1 BIB 9 25 O0917 1 2 TITLE The cross section for the reaction B-10(p,alpha)Be-7 atO0917 1 3 proton energies below 200 keV. O0917 1 4 AUTHOR (G.G.Bach,D.J.Liversey) O0917 1 5 INSTITUTE (2UK BIR) O0917 1 6 REFERENCE (J,PM,46,824,1955) O0917 1 7 FACILITY (CCW,2UK BIR) Protons extracted from a radio- O0917 1 8 frequency ion source were accelerated in a vertical O0917 1 9 two-stage vacuum tube. O0917 1 10 SAMPLE The B-10 targets were prepared by electromagnetic O0917 1 11 deposition of the isotope on copper. Two thin targets O0917 1 12 of 90 ug/cm2 and 120 ug/cm2 (accurate to 10%) and O0917 1 13 one thick target,400 mug/cm**2, were used. The O0917 1 14 thickness of this last target was determined by O0917 1 15 weighing the backing foil before and after deposition. O0917 1 16 DETECTOR (SCIN) The alpha particles were detected by a zinc O0917 1 17 sulphide screen and photomultiplier. O0917 1 18 METHOD (BCINT) Target currents were always measured with the O0917 1 19 target at a sufficiently large positive potential to O0917 1 20 retain secondary electrons. O0917 1 21 (SITA,OLMS) O0917 1 22 HISTORY (20011122C) O0917 1 23 (20030503U) Last checking has been done. O0917 1 24 (20221124U) SD: Small corrections in all Subents. O0917 1 25 Author's name corrected (dot was changed by comma O0917 1 26 after first author's name. O0917 1 27 ENDBIB 25 0 O0917 1 28 NOCOMMON 0 0 O0917 1 29 ENDSUBENT 28 0 O0917 199999 SUBENT O0917002 20221124 O091O0917 2 1 BIB 5 6 O0917 2 2 REACTION (5-B-10(P,A)4-BE-7,,SIG) O0917 2 3 MISC-COL (MISC) Thickness of target O0917 2 4 ERR-ANALYS (DATA-ERR) No information about source of uncertainty O0917 2 5 STATUS (TABLE) Table 2 from Phil.Mag.,46(1955)824 O0917 2 6 HISTORY (20221124U) SD: ERR-ANALYS, STATUS updated. O0917 2 7 ERR-T -> DATA-ERR. THICKNESS -> MISC (not indep.val.).O0917 2 8 ENDBIB 6 0 O0917 2 9 NOCOMMON 0 0 O0917 2 10 DATA 4 6 O0917 2 11 EN DATA DATA-ERR MISC O0917 2 12 KEV MB MB G/CM-SQ O0917 2 13 177. 2.9 0.4 0.00009 O0917 2 14 199. 6.6 0.9 0.00009 O0917 2 15 205. 7.4 1.1 0.00009 O0917 2 16 205. 9.7 1.4 0.00009 O0917 2 17 205. 9.0 1.3 0.00012 O0917 2 18 205. 10.9 1.4 0.0004 O0917 2 19 ENDDATA 8 0 O0917 2 20 ENDSUBENT 19 0 O0917 299999 SUBENT O0917003 20221124 O091O0917 3 1 BIB 5 13 O0917 3 2 REACTION (5-B-10(P,A)4-BE-7,,SIG) O0917 3 3 STATUS (CURVE) Fig. 3 from Phil.Mag.,46(1955)824 O0917 3 4 COMMENT - By authors. Relative value of the cross section at O0917 3 5 lower energies were obtained using a thick target and O0917 3 6 the analyser for proton energies down to 120 KeV. For O0917 3 7 energies below 120-KeV a simple target chamber O0917 3 8 employing range discrimination, and with a much larger O0917 3 9 solid angle than the analyser was used. The alpha O0917 3 10 particles were detected by a zinc sulphide screen and O0917 3 11 photomultiplier. These observations were fitted to the O0917 3 12 absolute determinations at 180 and 205 KeV. O0917 3 13 ADD-RES The data are presented as Gamov plot too. O0917 3 14 HISTORY (20221124U) SD: ERR-ANALYS, STATUS updated. O0917 3 15 ENDBIB 13 0 O0917 3 16 COMMON 2 3 O0917 3 17 EN-ERR ERR-DIG O0917 3 18 KEV PER-CENT O0917 3 19 2.5 6. O0917 3 20 ENDCOMMON 3 0 O0917 3 21 DATA 2 14 O0917 3 22 EN DATA O0917 3 23 KEV MB O0917 3 24 73.5 9.20E-04 O0917 3 25 78.6 5.40E-04 O0917 3 26 79.0 1.71E-03 O0917 3 27 87.4 2.10E-03 O0917 3 28 95.9 5.20E-03 O0917 3 29 108.0 1.00E-02 O0917 3 30 112.9 2.65E-02 O0917 3 31 121.7 3.13E-02 O0917 3 32 125.1 4.71E-02 O0917 3 33 135.6 6.80E-02 O0917 3 34 147.9 8.40E-02 O0917 3 35 161.8 1.76E-01 O0917 3 36 175.7 3.25E-01 O0917 3 37 191.5 5.10E-01 O0917 3 38 ENDDATA 16 0 O0917 3 39 ENDSUBENT 38 0 O0917 399999 ENDENTRY 3 0 O091799999999