ENTRY C3083 20250825 C308300000001 SUBENT C3083001 20250825 20260228 C308300100001 BIB 11 43 C308300100002 TITLE Strength measurement of the E lab alpha=830 keV C308300100003 resonance in the 22Ne(alpha,n)25Mg reaction using a C308300100004 stilbene detector C308300100005 AUTHOR (Shahina,R.J.deBoer,J.Gorres,R.Fang,M.Febbraro, C308300100006 R.Kelmar,M.Matney,K.Manukyan,J.T.Nattress,E.Robles, C308300100007 T.J.Ruland,T.T.King,A.Sanchez,R.S.Sidhu,E.Stech, C308300100008 M.Wiescher) C308300100009 REFERENCE (J,PR/C,110,015801,2024) C308300100010 #doi:10.1103/PhysRevC.110.015801 C308300100011 REL-REF (A,A0444004,M.Jaeger+,J,PRL,87,202501,2001) C308300100012 INSTITUTE (1USANOT,1USAORL,1USAAFT,2UK EDG) C308300100013 FACILITY (VDG,1USANOT) The Notre Dame Nuclear Science C308300100014 Laboratory St. ANA Pelletron accelerator. C308300100015 INC-SPECT The 5 MV accelerator delivered proton and alpha- C308300100016 particle (4He+) beams with an intensity of up to 65 C308300100017 microA on target. C308300100018 DETECTOR (SCIN) An Inradoptics Scintinel cylindrical stilbene C308300100019 crystal 2 inches in diameter x 2 inches in length. C308300100020 SAMPLE Beam-stop backings of Ta with a thickness of 0.5 mm C308300100021 were used for all targets. The primary target was one C308300100022 with deeply implanted 22Ne. The 22Ne targets were C308300100023 produced by implanting 22Ne ions onto a 0.5 mm thick C308300100024 Ta backing with a dosage of 300 mC over an area of 3 C308300100025 cm2 at an energy of 200 keV. The distribution of the C308300100026 implanted 22Ne atoms in the Ta backing was measured C308300100027 using the well-known resonance in the 22Ne(p,gamma) C308300100028 23Na reaction at Elab = 1278 keV. Because of the C308300100029 implantation profile, a beam energy of Elab = 910 keV C308300100030 was required to reach the central portion of the C308300100031 thick-target yield plateau for the narrow Elab = 830 C308300100032 keV resonance. C308300100033 METHOD (PSD) Stilbene has a lower scintillation efficiency C308300100034 than standard liquid scintillators but provides C308300100035 excellent pulse shape discrimination (PSD), which C308300100036 represents the detector's ability to discriminate C308300100037 between gamma-ray and neutron events at lower light C308300100038 output (i.e., neutron energy). This was critical for C308300100039 this experiment because, at the Elab = 830 keV C308300100040 resonance in the 22Ne(alpha,n)25Mg reaction, C308300100041 neutrons were produced with a maximum outgoing energy C308300100042 of En ~ 285 keV at 0 degree, well below the threshold C308300100043 of many types of standard liquid scintillators. C308300100044 HISTORY (20250825C) BP C308300100045 ENDBIB 43 0 C308300100046 NOCOMMON 0 0 C308300100047 ENDSUBENT 46 0 C308300199999 SUBENT C3083002 20250825 20260228 C308300200001 BIB 3 11 C308300200002 REACTION (10-NE-22(A,N),,WID/STR) C308300200003 ERR-ANALYS (ERR-T) Total and uncertainty contributions. C308300200004 (ERR-S) Statistics. C308300200005 (ERR-1) Background subtraction. C308300200006 (ERR-2) Current integration. C308300200007 (ERR-3) Neutron detection efficiency. C308300200008 (ERR-4) Kinematic effects (MCNP correction). C308300200009 (ERR-5) Angular distribution. C308300200010 (ERR-6) Target Thickness. C308300200011 (ERR-7) Target stability. C308300200012 STATUS (TABLE,,Shahina+,J,PR/C,110,015801,2024) Table - III C308300200013 ENDBIB 11 0 C308300200014 COMMON 8 6 C308300200015 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 C308300200016 ERR-6 ERR-7 C308300200017 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C308300200018 PER-CENT PER-CENT C308300200019 6.0 15.0 3.0 3.0 5.0 10.0C308300200020 6.0 5.0 C308300200021 ENDCOMMON 6 0 C308300200022 DATA 3 1 C308300200023 EN-RES DATA ERR-T C308300200024 KEV MILLI-EV MILLI-EV C308300200025 830.0 0.100 0.022 C308300200026 ENDDATA 3 0 C308300200027 ENDSUBENT 26 0 C308300299999 ENDENTRY 2 0 C308399999999