ENTRY 33071 20141029 31683307100000001 SUBENT 33071001 20141029 31683307100100001 BIB 10 41 3307100100002 TITLE K X rays from Cf252 fission fragments in ternary 3307100100003 fission 3307100100004 AUTHOR (S.S.Kapoor, V.S.Ramamurthy, P.N.Rama Rao) 3307100100005 INSTITUTE (3INDTRM) 3307100100006 REFERENCE (J,PR,166,1190,1968) 3307100100007 SAMPLE A 252Cf source of strength 5x10E5 fissions per min 3307100100008 deposited onto a thin nickel foil. 3307100100009 DETECTOR (SIBAR) A surface-barrier detector with depletion 3307100100010 depth of 400 micron was mounted at a distance of 3307100100011 about 0.8 cm from the source to detect the light 3307100100012 charged particles (LCP). This detector was covered 3307100100013 with an aluminum foil of thickness 10 mg/cm**2 to 3307100100014 stop completely all the natural alpha particles and 3307100100015 the fission fragments emitted from the source. 3307100100016 (GE) A semiconductor detector placed at right angles 3307100100017 to the LCP detector was used to detect the fission 3307100100018 fragments. 3307100100019 (SILI) The energies of the K x-rays were measured 3307100100020 with a cooled lithium-drifted silicon detector of 3 3307100100021 mm thickness, placed on the other side of the source 3307100100022 foil at a distance of 1.6 cm from the source in line 3307100100023 with the LCP detector. 3307100100024 METHOD (COINC) 3307100100025 (XSPEC) 3307100100026 CORRECTION The observed K x-ray spectra were corrected: (i) for 3307100100027 the background arising from the chance coincidences, 3307100100028 measured by appropriately delaying the pulses from 3307100100029 the LCP and fragment detector systems; and 3307100100030 (ii) for the background arising from the true 3307100100031 coincidences with the Compton scattered fission gamma 3307100100032 rays, measured by inserting a copper filter (570 3307100100033 mg/cm**2) in the path of the x rays. The detection 3307100100034 efficiencies for x rays of different energies were 3307100100035 calculated from the known photoelectric and total 3307100100036 absorption cross sections in silicon, also taking 3307100100037 into account a small attenuation of the x rays in one 3307100100038 beryllium window of thickness 46 mg/cm**2 and one 3307100100039 aluminum window of thickness 10 mg/cm**2. 3307100100040 ERR-ANALYS (DATA-ERR) No detail information on sources of 3307100100041 uncertainties. 3307100100042 HISTORY (20141029C) Compiled by R.Ghosh, B.Jyrwa, NEHU, India 3307100100043 ENDBIB 41 0 3307100100044 NOCOMMON 0 0 3307100100045 ENDSUBENT 44 0 3307100199999 SUBENT 33071002 20141029 31683307100200001 BIB 2 5 3307100200002 REACTION 1(98-CF-252(0,F)0-G-0,PR,KE,,MSC) Mean energy of K 3307100200003 X-rays emitted from light fission fragment 3307100200004 2(98-CF-252(0,F)0-G-0,PR,KE,,MSC) Mean energy of K 3307100200005 X-rays emitted from heavy fission fragment 3307100200006 STATUS (TABLE) Table I of Physical Review 166,1190,(1968) 3307100200007 ENDBIB 5 0 3307100200008 NOCOMMON 0 0 3307100200009 DATA 4 1 3307100200010 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3307100200011 KEV KEV KEV KEV 3307100200012 20.18 0.02 35.35 0.05 3307100200013 ENDDATA 3 0 3307100200014 ENDSUBENT 13 0 3307100299999 SUBENT 33071003 20141029 31683307100300001 BIB 2 6 3307100300002 REACTION 1(98-CF-252(0,F)0-G-0,PR,KE,,MSC) Mean energy of K 3307100300003 X- rays emitted from light fission fragment (ternary 3307100300004 fission) 3307100300005 2(98-CF-252(0,F)0-G-0,PR,KE,,MSC) Mean energy of K 3307100300006 X-rays emitted from heavy fragment (ternary fission) 3307100300007 STATUS (TABLE) Table I of Physical Review 166,1190,(1968) 3307100300008 ENDBIB 6 0 3307100300009 NOCOMMON 0 0 3307100300010 DATA 4 1 3307100300011 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3307100300012 KEV KEV KEV KEV 3307100300013 19.6 0.8 34.5 1.4 3307100300014 ENDDATA 3 0 3307100300015 ENDSUBENT 14 0 3307100399999 SUBENT 33071004 20141029 31683307100400001 BIB 2 7 3307100400002 REACTION 1(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Multiplicity of 3307100400003 K X-rays emitted from light fission fragment 3307100400004 2(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Multiplicity of 3307100400005 K X-rays emitted from heavy fission fragment 3307100400006 3(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Total Multiplicity of 3307100400007 K X-rays 3307100400008 STATUS (TABLE) Table I of Physical Review 166,1190,(1968) 3307100400009 ENDBIB 7 0 3307100400010 NOCOMMON 0 0 3307100400011 DATA 6 1 3307100400012 DATA 1DATA-ERR 1DATA 2DATA-ERR 2DATA 3DATA-ERR 33307100400013 PRT/FIS PRT/FIS PRT/FIS PRT/FIS PRT/FIS PRT/FIS 3307100400014 0.145 0.002 0.423 0.005 0.568 0.0063307100400015 ENDDATA 3 0 3307100400016 ENDSUBENT 15 0 3307100499999 SUBENT 33071005 20141029 31683307100500001 BIB 2 9 3307100500002 REACTION 1(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Multiplicity of 3307100500003 K X-rays emitted from light fission fragment(ternary 3307100500004 fission) 3307100500005 2(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Multiplicity of 3307100500006 K X-rays emitted from heavy fission fragment (ternary 3307100500007 fission) 3307100500008 3(98-CF-252(0,F)0-G-0,PR,FY,,MSC) Multiplicity of 3307100500009 K X-rays (ternary fission) 3307100500010 STATUS (TABLE) Table I of Physical Review 166,1190,(1968) 3307100500011 ENDBIB 9 0 3307100500012 NOCOMMON 0 0 3307100500013 DATA 6 1 3307100500014 DATA 1DATA-ERR 1DATA 2DATA-ERR 2DATA 3DATA-ERR 33307100500015 PRT/FIS PRT/FIS PRT/FIS PRT/FIS PRT/FIS PRT/FIS 3307100500016 0.18 0.01 0.48 0.02 0.66 0.033307100500017 ENDDATA 3 0 3307100500018 ENDSUBENT 17 0 3307100599999 ENDENTRY 5 0 3307199999999