KDP Impurity Data

Torres, R A

Lawrence Livermore National Laboratory

关键词: Absorption Spectra;    Sensitivity;    Impurities;    Detection;    71 Classical And Quantum Mechanics, General Physics;   

DOI  :  10.2172/15006083
RP-ID  :  UCRL-ID-146031
RP-ID  :  W-7405-ENG-48
RP-ID  :  15006083

美国|英语

来源: UNT Digital Library

【 摘 要 】

Attached are the impurity data for 20-liter growth runs N. Zaitseva/L. Carman made in the 1996-1997 time frame for which we have both solution and crystal data. The 5 impurities added for the runs are AI(III), Cr(III), Fe(III), Mo(VI), and Sb(V). As an explanation of the tables, I report all impurity concentrations as ppb (ng/g{sub KDP}) with respect to dry KDP (even solution data.) ''MDL'' stands for ''Method Detection Limit.'' Nominal uncertainties are 1 MDL or 10% of the quoted value, whichever is greater. If the measured value is less than the MDL, I report ''ND,'' for ''Not Detected.'' If the value is greater than the MDL, but less than twice the MDL, I report ''D,'' for ''Detected.'' If the value is more than twice the MDL, I report two significant figures. The values come from ICP-ES and ICP-MS measurements. I give the detection limit for the more sensitive technique in the table under the ''MDL'' heading. In case where only one technique was used, I give the MDL for that technique in parentheses after the impurity value in the table. Since these measurements were made, changes in instrumentation have resulted in significant improvements in many of the detection limits. Unfortunately, we no longer have any of the KDP boules from this time period. We now are concentrating on deuterated KDP, which we cannot send to you. I also am not able to locate any database of absorption spectra, which correspond to the impurity measurements for the attached data.