ENTRY M0471 20220130 M119M047100000001 SUBENT M0471001 20220130 M119M047100100001 BIB 11 36 M047100100002 TITLE Three-body photodisintegration of He-3. M047100100003 AUTHOR (H.M.Gerstenberg,J.S.O'Connell) M047100100004 REFERENCE (J,PR,144,834,1966) M047100100005 #doi:10.1103/PhysRev.144.834 M047100100006 INSTITUTE (1USANIS) M047100100007 FACILITY (BETAT,1USANIS) M047100100008 INC-SOURCE (BRST) M047100100009 METHOD (EXTB) M047100100010 SAMPLE The liquid He-3 target has been contained in the M047100100011 He-4 cryostat dewar. The 30 liter of He-3 gas in the M047100100012 storage tank were the slowly pumped into the target M047100100013 space where condensation of He-3 liquid was visually M047100100014 observed at a pressure of about 525 torr. Typical M047100100015 operating pressures and temperatures for the He-4 M047100100016 bath space and He-3 target space were 110 torr and M047100100017 2.69 degrees K, 450 torr and 2.70 degrees K, M047100100018 respectively. M047100100019 DETECTOR (BF3) The neutron detection system was a modified M047100100020 'Halpern-type detector' consisting of BF3 counters M047100100021 immersed in a mineral-oil moderator. Eleven M047100100022 counters, each having a diameter of 2 inchs and an M047100100023 active length of 15.7 inches, were placed parallel M047100100024 and around the central 6.75 inches beam tube. M047100100025 COMMENT The He-3(g,n)2p cross section has been measured in 1 M047100100026 MeV steps from threshold to 30 MeV using the M047100100027 national bureau of standards betatron and a He-4 M047100100028 cryostat to produce a 40-cm***3 liquid He-3 target. M047100100029 The measured cross section shows a broad peak M047100100030 between 14 and 20 MeV with a maximum cross section M047100100031 at about 0.90 mb. The integrated cross section M047100100032 values were obtained also. M047100100033 HISTORY (19910218C) M047100100034 (20130624A) Corrected by V.Varlamov: REACTION, M047100100035 COMMON, ERR-ANALYS. M047100100036 (20220130A) Corrected by V.Varlamov: PART-DET, STATUS, M047100100037 INT,,BRA -> INT,,BRS in REACTION of SUBENT 004. M047100100038 ENDBIB 36 0 M047100100039 NOCOMMON 0 0 M047100100040 ENDSUBENT 39 0 M047100199999 SUBENT M0471002 20220130 M119M047100200001 BIB 5 15 M047100200002 REACTION (2-HE-3(G,N+P)1-H-1,,SIG,,BRS) M047100200003 ANALYSIS (PLA) The reaction yield "Y" is defined as a M047100200004 number of neutrons detected per unit of charge M047100200005 registered in the standard ion chamber (beam M047100200006 monitor). The cross section was unfolded from the M047100200007 measured yield curve Y(Eg-max) using the M047100200008 Penfold-Leiss method. M047100200009 ERR-ANALYS No information. M047100200010 STATUS (CURVE) Data from Fig. 3 M047100200011 of Phys.Rev.,144(1966)834. M047100200012 (COREL,M0471003) M047100200013 Data derived with the least structure method M047100200014 HISTORY (20130624A) Corrected by V.Varlamov: BRA -> BRS, M047100200015 STATUS. M047100200016 (20220130U) Corrected by V.Varlamov: ANALYSIS, STATUS. M047100200017 ENDBIB 15 0 M047100200018 NOCOMMON 0 0 M047100200019 DATA 2 21 M047100200020 EN DATA M047100200021 MEV MB M047100200022 9. .14 M047100200023 10. .19 M047100200024 11. .29 M047100200025 12. .4 M047100200026 13. .52 M047100200027 14. .77 M047100200028 15. .82 M047100200029 16. .89 M047100200030 17. .92 M047100200031 18. .86 M047100200032 19. .79 M047100200033 20. .76 M047100200034 21. .715 M047100200035 22. .76 M047100200036 23. .71 M047100200037 24. .66 M047100200038 25. .7 M047100200039 26. .53 M047100200040 27. .56 M047100200041 28. .39 M047100200042 29. .29 M047100200043 ENDDATA 23 0 M047100200044 ENDSUBENT 43 0 M047100299999 SUBENT M0471003 20220130 M119M047100300001 BIB 5 17 M047100300002 REACTION (2-HE-3(G,N+P)1-H-1,,SIG,,BRS) M047100300003 ANALYSIS (LEAST) The reaction yield "Y" is defined as a M047100300004 number of neutrons detected per unit of charge M047100300005 registered in the standard ion chamber (beam M047100300006 monitor). The cross section was unfolded from the M047100300007 measured yield curve Y(Eg-max) using the M047100300008 "least structure" Cook's method. M047100300009 ERR-ANALYS (DATA-ERR) Quoted errors include estimates of M047100300010 systematic and random statistical errors. M047100300011 STATUS (CURVE) Data from Fig. 3 M047100300012 of Phys.Rev.,144(1966)834. M047100300013 (COREL,M0471002) M047100300014 Data derived with the Penfold-Leiss method. M047100300015 HISTORY (20130624A) Corrected by V.Varlamov: BRA -> BRS, M047100300016 STATUS. M047100300017 (20220130A) Corrected by V.Varlamov: ANALYSIS, STATUS, M047100300018 ERR-T -> DATA-ERR. M047100300019 ENDBIB 17 0 M047100300020 NOCOMMON 0 0 M047100300021 DATA 3 22 M047100300022 EN DATA DATA-ERR M047100300023 MEV MB MB M047100300024 8.5 .125 .025 M047100300025 9.5 .190 .025 M047100300026 10.5 .205 .025 M047100300027 11.5 .295 .025 M047100300028 12.5 .430 .025 M047100300029 13.5 .63 .03 M047100300030 14.5 .8 .4 M047100300031 15.5 .86 .40 M047100300032 16.5 .85 .45 M047100300033 17.5 .78 M047100300034 18.5 .79 .50 M047100300035 19.5 .8 M047100300036 20.5 .79 M047100300037 21.5 .79 M047100300038 22.5 .76 .70 M047100300039 23.5 .72 M047100300040 24.5 .715 M047100300041 25.5 .725 M047100300042 26.5 .7 M047100300043 27.5 .56 M047100300044 28.5 .22 1.20 M047100300045 29.5 -0.25 M047100300046 ENDDATA 24 0 M047100300047 ENDSUBENT 46 0 M047100399999 SUBENT M0471004 20220130 M119M047100400001 BIB 4 9 M047100400002 REACTION (2-HE-3(G,N+P)1-H-1,,INT,,BRS) M047100400003 ERR-ANALYS (DATA-ERR) Total uncertainties. M047100400004 STATUS (DEP,M0471003) Reaction cross section. M047100400005 (TABLE) Data from text M047100400006 of Phys.Rev.,144(1966)834. M047100400007 HISTORY (20130624A) Corrected by V.Varlamov: ERR-ANALYS, M047100400008 STATUS, M047100400009 (20220130A) Corrected by V.Varlamov: ERR-T -> M047100400010 DATA-ERR, INT,,BRA -> INT,,BRS, STATUS. M047100400011 ENDBIB 9 0 M047100400012 NOCOMMON 0 0 M047100400013 DATA 4 1 M047100400014 EN-MIN EN-MAX DATA DATA-ERR M047100400015 MEV MEV MB*MEV PER-CENT M047100400016 0. 28. 12.1 10.0 M047100400017 ENDDATA 3 0 M047100400018 ENDSUBENT 17 0 M047100499999 ENDENTRY 4 0 M047199999999