NARA 5SDH-2
NARA 5SDH-2
The lines starting with the word batch specify global settings which apply to all cathodes in the list. The rare isotope name, which ion source to use, what cathode to park the source on when the list is finished, the operating mode of the program and whether to autorange the current amplifiers used for abundant isotope measurements are specified here.
Lines starting with the word cathode are entries in a list of cathodes.
Lines starting with the word item specify settings related to each item in the list. Each line specifies parameters for one runlist item.
summary are entries in a summary group.
Each line in the file contains one directive. The fields within a line should be separated by tabs or spaces and the line terminated with a newline.
Lines beginning with a # are treated as comments. There is no line continuation character.
If multiple batch lines occur for the same batch directive the last entry in the file is used.
If multiple cathode lines occur with the same cathode position number second and subsequent occurances are ignored and a complaint is written to stderr (DMANserv’s log file) and to the user.
If multiple item lines occur with the same item number the second and subsequent occurances are ignored and a complaint is written to stderr (DMANserv’s log file) and to the user.
If multiple summary lines occur with the same grp number the second and subsequent occurances are ignored and a complaint is written to stderr (DMANserv’s log file) and to the user.
batch directives should appear first in the file.
cathode directives should appear next.
item directives are next.
summary directives are last.
A cathode must exist is this group before it may be specified by an item directive.
The fields are in the following order: the word cathode and the fields Pos, SmType, Sample Name, and Sample Name2.
The field usage is as follows:
The PV-Wave software looks for the SmType indentifier in the file /IsoNET/inputs/deltafile on the computer where PV-Wave is running. If the identifier is found in the file, the program uses the listed delta 13C value and its uncertainty. Each line in the file contains 3 parameters: the SampleType(SmType) indentifier, the Delta 13C value for that material, and the uncertainty (Sigma) of the delta 13C value. At least one space is required between the 3 values on each line, and any amount of white space is allowed.
Here is a list of SmType values supplied with the system:
ANU ANU sucrose, delta13C = -10.8,
sigma = 0.47
SUC Sucrose, delta13C = -10.8, sigma = 0.47
HOXII Oxalyic Acid II, delta13C = -17.8, sigma = 0.5
OXII Oxalyic Acid II, delta13C = -17.8, sigma = 0.5
HOXI Oxalyic Acid I, delta13C = -19.0, sigma = 1.0
OXI Oxalyic Acid I, delta13C = -19.0, sigma = 1.0
C1 IAEA material code, delta13C = 2.42, sigma = 0.33
C2 IAEA material code, delta13C = -8.25, sigma = 0.31
C3 IAEA material code, delta13C = -24.91, sigma = 0.49
C4 IAEA material code, delta13C = -23.96, sigma = 0.62
C5 IAEA material code, delta13C = -25.49, sigma = 0.72
C6 IAEA material code, delta13C = -10.8, sigma = 0.47
SampleName has a maximum size of 16 chars. There can be no whitespace in this field. Entries longer than 16 chars will be truncated.
SampleName2 has a maximum size of 16 chars. There can be no whitespace in this field. Entries longer than 16 chars will be truncated.
Please note that the keyword run is still recognized and may be used in place of the keyword item but is deprecated.
The fields are in the following order: the word item (or the word run) and the fields Item, Pos, Grp, Sum, Runs, Md, Tlimit, Climit, and Warm. These are required fields.
The fields Jn and Jlimit fields are optional and need to be added if judgement is used.
The field usage is as follows:
Note that the user may start execution at any point in the runlist from DMANmngr_v2(1) . Placing the DMAN system in grp mode and selecting an item at the beginning of a group using DMANmngr allows any single group to be executed.
If mode is T then the Tlimit field specifies the number of jumping cycles to perform. A typical jumping cycle is 100mS long so a Tlimit value of 3000 means to measure for 300 seconds. Climit is ignored but the field must be present.
If mode is C then Tlimit works as already described and Climit also comes into play. Climit is the number of gated rare isotope events to collect before ending the measurement. If either Climit or Tlimit is reached the measurement is concluded.
Tlimit and Climit are positive integer values.
Note that the measurement time as specified here is actual data collection time NOT clock time. The actual measurement will take a little bit longer than the amount of time specified by Tlimit due to various overheads.
The fields are in the following order: the word sum and the fields Grp, and Group Name.
The field usage is as follows:
This is typically used in applications where it is desired to make several short measurements of a cathode and after some minimum number of measurements make a decision based on the scatter of measurements whether to measure again or move to the next cathode. It is possible to write program modules using other selection criteria.
AccelNET provides a program module which makes this decision based on the results of the most recent N number of runs.
The PV-Wave analysis software also contains options to select the "best" N runs, based on your choice of any of five criteria, during offline reanalysis of the data.
sum 3 standards
