Beam: 40Ca at 204 MeV.
Detectors had 0.5mm Pb and 0.3mm Cu in front
Run Summary Run Date Start Time Events Comment 1 13 13:04 26m 243199(87.8%) Clovers - 90/38/45/60 2 13 13:34 1h11m 428303(89.5%) Clovers - 90/38/45/60 3 13 15:09 18m 187179(77.4%) Tgt: Gd/Ta/Cu 4 13 15:30 15m 1550824(83.1%) Calibration Run 5 13 15:45 2h5m 1394275(78.1%) Clovers - 90/38/45/60 6 13 18:19 5h10m 4730124(72.4%) Beam: 180 MeV 7 13 23:30 3h24m 3979772(72.3%) Clovers - 90/38/45/60 8 14 3:03 4h12m 4711358(72.5%) Clovers - 90/38/45/60 9 14 7:18 2h26m 2609151(72.4%) End of Clover Run
Run Date Start Time Events Comment 13 14 18:24 6h3m 9542145(92.6%) NaI - all 60 deg. 14 15 00:29 3h14m 6366750(92.6%) NaI - 90/45/60/60 deg. 15 15 03:45 4h29m 7920354(92.7%) NaI - 90/45/60/60
Beam: 44Ca at 180 MeV.
Run Summary Run Date Start Time Events Comment 17 15 09:25 47m 145993(93.3%) NaI - 90/45/60/60 18 15 10:40 30m 175506(92.3%) Eff Run - all at 67.5 deg. 19 15 12:20 54m 131399(94.0%) Ang Corr - 90/45/42/67.5 20 15 13:16 1h17m 143545(93.8%) Ang Corr - 90/45/90/45 21 15 14:37 1h4m 143409(92.5%) Ang Corr - 45/90/45/90
Beam: 42Ca at 180 MeV
Run Summary Run Date Start Time Events Comment 22 15 16:26 3h14m 137139(92.0%) Ang Corr - 45/90/45/90 23 15 21:42 5h15m 282311(94.1%) Ang Corr - 90/45/90/45 24 16 03:04 1h54m 111427(92.9%) Ang Corr - 45/90/45/90 25 16 05:04 3h14m 182521(93.1%) Ang Corr - 90/45/90/45
Beam: 44Ca at 180 MeV
Run Summary Run Date Start Time Events Comment 26 16 09:36 9h36m 672343(94.1%) NaI - all at 67.5 deg. 27 16 19:18 8h1m 1181241(94.3%) NaI - all at 67.5 deg. 28 17 03:20 8h38m 697168(94.3%) NaI - all at 67.5 deg. 29 17 16:29 7h30m 752360(94.1%) NaI - all at 67.5 deg. 30 18 00:06 2h53m 72901(94.5%) Anisotropy - 45/90/45/90 31 18 05:09 5m 60654(46.8%) Source Run
Beam: 44Ca at 185 MeV.
Run Summary Run Date Start Time Events Comment 34 31 14:38 2h38m 1138280(69.3%) NaI - Beam bending Test 35 31 17:56 15m 115869(79.1%) Anisotropy 100/50/80/130 36 31 18:21 2h25m 1308549(76.0%) Anisotropy 100/50/80/130 37 31 21:20 2h02m 1097384(71.9%) Anisotropy 130/80/50/100 38 31 23:28 2h54m 1485584(70.2%) Precession all dets at 67.5 39 1 2:25 3h18 1798410(66.9%) Precession run 40 1 5:45 5h08m 3245443(64.0%) Precession run 41 1 10:54 1h55m 1373540(58.4%) Precession run 44 1 18:17 7h55m 2254250(28.5%) 76Se beam Precession 45 2 2:18 21m 100660(82.6%) Anisotropy 130/80/50/100 Tac problems 46 2 2:48 2h58m 916602(96.0%) Anisotropy 130/80/50/100 47 2 5:54 2h04m 882247(95.1%) Anisotropy 100/50/80/130 48 2 12:31 1h50m 2381509(35.6%) 40Ca Test Mix singles and coinc 49 2 14:21 9m 120304(95.1%) 40Ca Test 51 2 16:11 55m 18492(87.2%) Back to 44Ca Precession 52 2 17:06 31m 67621(79.2%) Precession run 53 2 17:38 6h32m 890419(74.7%) Precession run 54 3 00:11 2h38m 276964(42.8%) Precession run 55 3 2:51 7h04m 1412053(58.1%) Precession run 56 3 10:01 3h22m 606801(85.8%) Precession run 57 3 14:09 15h51m 4264011(86.0%) Precession run
Beam: 44Ca at 90 MeV.
4 Clover detectors
Overall we had very low rate due to low beam current and loss of C on the target. At the end no Carbon was left on the target!
Run Summary Run Date Start Time Events Comment 58 8 21:30 4h17m 18889(92.8%) Anisotropy 130/80/50/110 59 9 03:30 5h13m 34144(53.4%) Anisotropy 100/50/80/130 60 9 20:42 1h03m 4683 continue Anisotropy while cooling 61 9 21:57 12h40m 98160(85.8%) Precession all dets at 67 62 10 12:38 1h24m 2252(10.3%) Dacq: lots of bit errors 63 10 4:10 1h28m 5531(28.1%) Struggle to take data 64 10 17:08 1h20m 3961(24.2%) more the same (resetting Dacq) 65 10 18:21 4h25m 60148(76.9%) 66 10 22:52 2h42m 37004(78.1%) 67 11 01:44 1h34m 20792(78.1%) stop for reseting dacq 68 11 03:23 0h13m 3005(76.6%) 69 11 03:42 0h21m 2480(63.8%) 70 11 04:06 1h01m 11897(72.1%) 71 11 05:12 0h13m 1590(50.8%) 72 11 05:35 6h30m 79075(79.5%) more stable but low rate 73 11 12:19 2h15m 25085(73.5%) Puzzled by low rate in Det 2&4 switched ADC 74 11 16:48 2h59m 46223(73.0%) 75 11 20:05 1h50m 20459(64.6%) stopped for reboot 76 11 22:06 3h15m 31163(80.2%) rotated to 67+1 77 12 01:30 1h06m 9819(81.1%) back to 67 78 12 02:41 3h34m 31330(80.7%) 67 + 2 79 12 06:28 2h40m 28140(80.8%) 67 + 7 80 12 12:23 3h30m 559982(85.8%) Switched to Canberra Si det 81 12 15:55 1h00m 170528(86.5%) Bias 90 Volt 82 12 17:04 0h54m 55728(89.6%) Bias 20 Volt 83 12 18:20 0h22m 4777(70.8% Beam now 80 MeV 84 12 8:43 0h51m 5345 essentially no rate 85 12 19:51 10h14m 689113(79.3%) Beam 85 MeV
Beam: 40,44Ca at 90 - 105 (&165) MeV.
4 Clover detectors
Overall we had very low rate due to low beam current and problems with C on the target. Traget 1 has C detached from Gd.
40Ca was run at 165 Mev and a thick Ta target just as test.
Tandem had poor transmission and most work was testing and waiting for beam.
Run Summary Run Date Start Time Events Comment 87 5 19:08 2h35m Background no beam 89 5 22:46 17m singles 40Ca on Ta (spec4.his) 96 6 11:05 27m singles 40Ca on C (spec96.his) 97 6 11:36 1m singles, Dacq cannot handle rate 103 6 21:59 2m 152Eu (cal103.his) 104 6 22:04 3h18m 7541624(94.8%) 105 MeV 44Ca 107 7 05:36 3h00m 3076387(94.4%) 105 MeV 44Ca 109 7 09:10 2h20m 1544289(94.0%) 100 MeV 44Ca 110 7 11:50 2h24m 718511(93.7%) 95 MeV 44Ca 111 7 15:10 2h10m 390590(85.7%) 90 MeV 44Ca 112 7 17:26 5h31m 912500(90.8%) Carbon layer detached 114 8 01:20 3h50m 342855(94.1%) New Target, Anisotropy 130/80/50/110 115 8 05:15 4h08m 717398(93.5%) Anisotropy 110/50/80/130 117 8 12:30 555652(93.1%) precession run 67 deg. cold 90 MeV 118 8 15:59 1h09m 56861(90.3%) precession 85 MeV 119 8 17:44 11h16m 1075708(91.6%) precession 88 MeV 120 9 07:07 7m36s singles 152Eu
Beam: 40,44Ca at 90 MeV.
4 NaI detectors
Problems with the ion source prevented a satifactory completion of the experiment.
Run Summary Run Date Start Time Events Comment 120 14 20:35 1h32m 129219(79.8%) Angular 50/80/50/80 121 14 22:18 1h45m 159014(79.6%) Angular 80/50/80/50 122 15 00:10 3h48m 285185(79.7%) Precession 123 15 04:03 3h40m 226786(79.3%) Precession 124 15 08:10 1h57m 166391(79.1%) Precession 125 15 14:01 4h08m 205786(79.0%) Precession 126 15 21:09 1h49m 65029(78.4%) Precession 127 15 23:45 0h31m 2842( 2.0%) Precession 128 16 02:36 5h54m 257465(80.5%) Precession 129 16 08:46 5h27m 1086529(79.7%) Precession 130 16 14:16 4h32m 865614(79.8%) Precession
Lost beam around 19:00 on Thursday and never got it back.
Beam: 40,44Ca at 90 MeV.
4 NaI detectors + 1 Ge Monitor
Beam in the range 2 - 3 nA analyzed.
Run Summary Run Date Start Time Events Comment 136 17 14:20 2h25m 372523(81.0%) Angular set1: 50/80/50/80 137 17 16;50 0h57m 120410(77.9%) Angular set2: 80/50/80/50 138 17 17:49 1h47m 319636(83.3%) Angular set2: 80/50/80/50 139 17 20:55 5h12m 1054799(81.2%) Precession (67.5 deg.) 140 18 02:08 4h58m 1000651(81.8%) Precession (67.5 deg.) 141 18 07:06 4h41m 680339(84.4%) Precession (67.5 deg.) 142 18 11:59 5h23m 874766(85.4%) Precession (67.5 deg.) 143 18 17:22 6h45m 1099868(85.9%) Precession (67.5 deg.) 144 19 00:08 1h32m 204046(86.3%) Precession (67.5 deg.) 145 19 03:30 5h24m 744460(86.6%) Precession (67.5 deg.) 146 19 08:55 4h51m 909192(86.7%) Precession (67.5 deg.) 147 19 14:07 3h 0m 593751(86.6%) Angular set1: 50/80/50/80 148 19 17:10 2h59m 697643(86.9%) Angular set2: 80/50/80/50 152 20 04:42 4h 4m 886882(86.6%) Precession (67.5 deg) 153 20 08:47 2h51m 502160(86.1%) Problems with det1 resolution 154 20 12:19 2h12m 842250(80.8%) 95 MeV Precession bad det 1 155 20 14:53 0h26m 178469(82.6%) 95 Mev Precession No det1 156 20 17:34 6h 0m 1409922(84.7%) 95 Mev Precession Det1=Ge 157 20 23:45 7h35m 1410005(84.8%) 95 Mev Precession Det1=Ge 158 21 07:02 4h41m 1326663(84.7%) 95 Mev Precession Det1=Ge 159 21 11:56 6h 6m 825179(85.4%) 90 MeV more Precession 160 21 18:03 12h 7m 1179947(85.3%) 90 MeV more Precession