ENTRY A0626 20231230 A106A0626 0 1 SUBENT A0626001 20231230 A106A0626 1 1 BIB 11 54 A0626 1 2 TITLE Cross section measurements of the H-1(HE3,P)He-3 A0626 1 3 reactions at 20 and 30 degrees between 1.6 and 2.8 MeV.A0626 1 4 AUTHOR (G.Terwagne, G.G.Ross, L.Leblanc) A0626 1 5 REFERENCE (J,JAP,79,8886,1996) A0626 1 6 INSTITUTE (2BLGNAM) A0626 1 7 (1CANCAN) University of Quebec, Varennes A0626 1 8 FACILITY (VDGT,2BLGNAM) The 2.5 MV Van de Graff accelerator A0626 1 9 SAMPLE Two silicon samples cut out of a silicon wafer with A0626 1 10 orientation (100) were used as substrates. A thin A0626 1 11 film of alpha-Si-C:H was deposited simultaneously onto A0626 1 12 these two substrates by means of plasma enhanced A0626 1 13 chemical vapor deposition. The standards were A0626 1 14 transferred in air to the analysis chamber, in which A0626 1 15 the typical pressure was 2E-8 mbar during the analysis.A0626 1 16 The composition of the Si-C:H film was measured by A0626 1 17 means of Rutherford backscattering spectroscopy on the A0626 1 18 Si-C:H film. The measured ratio was Si/C =0.50. A0626 1 19 The stability of hydrogen contents during the A0626 1 20 bombardment with high energy He-3 beam was verified. A0626 1 21 Prior to the cross section measurement of the A0626 1 22 H-1(He3,p)2-He-3 reaction, a very thin layer of gold A0626 1 23 2.86*10E+15 atoms/cm**2 was evaporated on the A0626 1 24 standard in order to normalize the results. A0626 1 25 DETECTOR (SIBAR) Three detectors were placed in the analyzing A0626 1 26 chamber pumped down with a turbomolecular pump and the A0626 1 27 residual pressure was lower than 5*10E-7 mbar. A0626 1 28 The first detector was placed at 100 mm from the beam A0626 1 29 impact at 20 or 30 degrees relative to the incident A0626 1 30 beam. A0626 1 31 The second surface barrier detector was placed 70 mm A0626 1 32 from the beam impact at 90 degree relative to the A0626 1 33 incident beam. A0626 1 34 The third detector placed at the backscattering angle A0626 1 35 of 140 degree, was used to measured the integrated beamA0626 1 36 charge with the signal due to the evaporated layer A0626 1 37 of gold on the standard. A0626 1 38 METHOD (BCINT) A0626 1 39 STATUS (TABLE,,G.Terwagne,W,TERWANGE,19990113) A0626 1 40 ERR-ANALYS (ERR-T) The absolute error on the cross sections A0626 1 41 H-1(He3,p)He3 measured relative to gold is due to threeA0626 1 42 different factors. The overall error has been estimatedA0626 1 43 to be less than 8%. A0626 1 44 (ERR-S) Statistical errors on the determination of the A0626 1 45 area under the peak due to the nuclear reaction and theA0626 1 46 area under gold information. A0626 1 47 (ERR-2) Systematical errors on the measurements of the A0626 1 48 solid angles. A0626 1 49 (ERR-3) Experimental errors due to the measurement of A0626 1 50 the number of hydrogen atoms and the number of gold A0626 1 51 atoms. A0626 1 52 HISTORY (19990113C) A0626 1 53 (20040326A) Misprint in DATA-section is corrected A0626 1 54 (20040326U) Last checking has been done. A0626 1 55 (20231230A) SD: Correction in Subent 002. A0626 1 56 ENDBIB 54 0 A0626 1 57 COMMON 3 3 A0626 1 58 ERR-S ERR-2 ERR-3 A0626 1 59 PER-CENT PER-CENT PER-CENT A0626 1 60 3. 2. 4. A0626 1 61 ENDCOMMON 3 0 A0626 1 62 ENDSUBENT 61 0 A0626 199999 SUBENT A0626002 20231230 A106A0626 2 1 BIB 2 2 A0626 2 2 REACTION (1-H-1(HE3,EL)1-H-1,,DA,P) A0626 2 3 HISTORY (20231230A) SD: SF7=P added to REACTION code. A0626 2 4 ENDBIB 2 0 A0626 2 5 NOCOMMON 0 0 A0626 2 6 DATA 4 27 A0626 2 7 EN ANG DATA ERR-T A0626 2 8 KEV ADEG MB/SR MB/SR A0626 2 9 1900. 30. 517.8 41.42 A0626 2 10 2000. 20. 472.95 37.84 A0626 2 11 2000. 30. 476.21 38.1 A0626 2 12 2100. 20. 482.36 38.59 A0626 2 13 2100. 30. 448.68 35.89 A0626 2 14 2200. 20. 442.09 35.37 A0626 2 15 2200. 30. 452.18 36.17 A0626 2 16 2250. 30. 497.18 39.77 A0626 2 17 2300. 20. 519.29 41.54 A0626 2 18 2300. 30. 500.78 43.6 A0626 2 19 2350. 20. 451.29 36.1 A0626 2 20 2400. 20. 505.17 40.41 A0626 2 21 2400. 20. 508.79 40.7 A0626 2 22 2400. 30. 484.59 38.77 A0626 2 23 2400. 30. 501.39 40.11 A0626 2 24 2500. 20. 456.72 36.54 A0626 2 25 2500. 30. 460.87 36.87 A0626 2 26 2600. 20. 491.53 39.32 A0626 2 27 2600. 30. 469.98 37.6 A0626 2 28 2700. 20. 529.19 42.33 A0626 2 29 2700. 30. 406.75 32.54 A0626 2 30 2800. 20. 546.15 43.69 A0626 2 31 2800. 30. 492.12 39.37 A0626 2 32 2900. 20. 578.51 46.28 A0626 2 33 2900. 30. 529.18 42.33 A0626 2 34 3000. 20. 646.14 51.69 A0626 2 35 3000. 30. 551.96 44.16 A0626 2 36 ENDDATA 29 0 A0626 2 37 ENDSUBENT 36 0 A0626 299999 ENDENTRY 2 0 A062699999999