Memo 4C-3/342

To:

Distribution

From:

M. Lammer

Subject:

CINDA: combination of energy codes.

Vicki McLane, Simon Webster and I had an exchange of several e-mail messages about theold restrictions on combinations of alphabetic energy codes and of alphabetic with numericcodes in the minimum and maximum energy field of CINDA entries. The conclusion is thatthe restrictions are no more required by CINDA processing and checking programs and can bedropped.
We agreed on the following new rules and additions to the chapter on neutron energy in theCINDA manual:

1. Combinations of numerical values:
Addition under "a) General rule for numerical values", manual page II.9.1:
The value entered in the minimum energy field must always be less than thevalue entered in the maximum energy field.
2. Combinations of alphabetic codes:
Any combination of alphabetic codes is permitted as long as E-MIN<=E-MAX(but see 3. below!) is observed, with the following exceptions:"NDG" in the E-MIN field should not be combined with any other code.
"TR" in the E-MIN field can only be combined with a numeric code or "UP" inthe E-MAX field.
3. Energy equivalent for sorting.
For consistency reasons, the following combinations (with presently the samenumerical equivalent) should not be permitted in reverse order:
E-MIN E-MAX
SPON COLD
MAXW PILE
FAST FISS
Therefore, the following numerical energy equivalents are proposed:
SPONzero
COLD
0.001 eV
MAXW 0.025 eVPILE
0.05eV
FAST 0.5
MeVFISS1
MeV

4. Combinations of alphabetic with numeric codes:
Any combination of alphabetic with numeric codes is permitted as long as
E-MIN<=E-MAX is observed, with the following restriction:
If E-MIN = E-MAX, then the alphabetic code has to be entered in the E-MIN
field to maintain consistency with the old entries coded under the previously
valid restrictions.
5. Changes in the CINDA Manual
In addition to the changes introducing the new rules outlined above, thesubsections of section g), starting on manual page II.9.5, should berearranged as follows:
Energy equivalent for sorting (should be a separate subsection).
Combinations of alphabetic codes.
Combinations of alphabetic with numeric codes.
Examples of combinations of codes.
The title of this last subsection should be changed to "Examples ...".
The combination "PILE25-2" should be eliminated, and "TR UP" be moved topage II.9.4, following "TR", as "UP" cannot be combined with anything else.
(Theoretically, this is not explicitely excluded in the manual, but shouldbe, and does not occur in the master file).
The revised Manual pages are attached (where I also introduced, on page II.9.1,"E-MIN" and "E-MAX" for simplicity).
revisions of manual pages:

where E-MIN

E-MAX must always be observed.

Minimum (columns 19-22: "E-MIN" field) and maximum (columns23-26: "E-MAX" field) neutron energy in electron volt.

Threshold energy (if possible a numericalvalue should be given instead), together
with a numerical value for E-MAX, or
if no upper limit is specified above thethreshold (if possible, a numerical limit
should be given or etimated).
Energy equivalent for sorting
For internal sorting processes, the alphabetic energy codes are assigned
numerical energy equivalents:

SPONzero
COLD
0.001 eVMAXW
0.025 eV
PILE
0.05 eVFAST
0.5 MeVFISS1
MeVTR
O.5 MeV --> 5 Mev
TR UP O.5 MeV --> 10 Mev

Combinations of alphabetic codes
Any combination of alphabetic codes is permitted as long as E-MIN
is observed, with the following exceptions:

E-MAX"NDG" must be entered in the E-MIN field and should not be combinedwith any other code.
"TR" must be entered in the E-MIN field and can only be combined with anumeric code or "UP" (no blank!) in the E-MAX field.

Combinations of alphabetic with numeric codes
Any combination of alphabetic with numeric codes is permitted as long as
E-MIN E-MAX is observed, with the following restriction:
If E-MIN=E-MAX, then the alphabetic code has to be entered in the E-MIN
field.
If in a paper both a spectrum average as well as a range of monochromatic
neutron values are given, two separate entries should be made.

Examples of combinations of codes