Activity Listing for KamLAND Samples, activated at MIT 7/29/2002



Zelimir Djurcic and Andreas Piepke
University of Alabama
(Status 9/16/2002)


We summarize the activities found in the activated samples CIT 81, 86, 87, 88, 94 and 96 (UA sample designation NA 11). The activities listed refer to 7/31/2002 12:00 (initial counting after receipt of the samples while still in their activation vials). We only list the principal activities as determined by gamma ray spectroscopy using a shielded Ge detector. The listed activities are given in units of [Bq]. The quoted errors were derived by adding the statistical and a 10% systematic error in quadrature. ND means "not detected" (statistically insignificant).

Activity [Bq]
Sample Rabbit 24Na 42K 51Cr 60Co 65Zn 82Br 122Sb 131Ba 140La 181Hf 187W 198Au 233Pa 239Np
CIT 81
Ashed scint. residue, K/Th/U spiked 		1.192 h (2.7±0.3)·104 8880±888 ND ND ND 72±9 52±10 ND 85±12 ND 19±24 ND ND ND
CIT 86
Flux standard in quartz vial 		1.192 h (3.6±0.4)·104 1990±200 154±32 ND ND 748±75 951±95 ND 1390±140 ND ND 935±94 416±42 2160±216
CIT 87
Flux standard in quartz vial 		1.192 h (6.5±0.7)·104 3700±370 355±65 ND ND 123±15 3230±320 ND 3980±400 ND ND 2630±260 923±92 3290±330
CIT 88
Scint. residue, K/Th/U spiked 		1.192 h (1.6±0.2)·104 520±55 26±12 ND ND 1230±120 63±7 ND 35±4 ND ND 4.8±1.4 < 9 < 10
CIT 94
Flux standard in PE vial 		1.192 h (8.4±0.8)·104 4400±450 317±67 ND ND 1530±150 2370±237 ND 3070±300 ND ND 1850±190 834±85 3700±370
CIT 96
Flux standard in PE vial 		1.192 h (3.4±0.3)·104 1730±190 240±50 ND ND 871±87 1040±100 ND 1300±130 ND ND 838±84 380±40 1600±160
Sample Rabbit 24Na 42K 51Cr 60Co 65Zn 82Br 122Sb 131Ba 140La 181Hf 187W 198Au 233Pa 239Np


This page is maintained by A. Piepke
Last update September 16, 2002