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DCYSCORE


    associates selected scoring detectors of given estimator type with
    user-defined decay times or with combined prompt-decay particle scoring. In
    the first case, see WARNING in Note 1 below. Also needed for scoring when
    the source is a radioactive isotope.

    See also DCYTIMES, IRRPROFI, RADDECAY, RESNUCLEi

     
WHAT(1)
> 0.0 : cooling time index to be associated with the detector(s) of estimator type defined by
SDUM
and with number (or name) corresponding to
WHAT(4)
-
WHAT(6)
(see Note 2 below). Only allowed when decay is calculated in "activation study" non-analogue mode (see Note 1 of RADDECAY and Note 5 below). = -1.0 : if option RADDECAY has been requested with
WHAT(1)
> 1.0, i.e. for radioactive decays activated in semi-analogue mode, the detectors defined by
WHAT(4)
-
WHAT(6)
will score both prompt and radioactive decay particles. See Note 6, and Note 7 for the case where the source has been defined as a radioactive isotope. = 0.0 : no scoring
Default
= 0.0
WHAT(2)
-
WHAT(3)
= not used
WHAT(4)
= lower index bound (or corresponding name) of detectors of type
SDUM
associated with the specified cooling time (if
WHAT(1)
> 0.) or with combined prompt-decay particle scoring (if
WHAT(1)
= -1.) ("From detector
WHAT(4)
of estimator type
SDUM
....")
Default
= 1.0
WHAT(5)
= upper index bound (or corresponding name) of detectors associated with the specified cooling time or with combined prompt-decay particle scoring ("...to detector
WHAT(5)
of estimator type
SDUM
....")
Default
=
WHAT(4)
WHAT(6)
= step length in assigning indices ("...in step of
WHAT(6)
")
Default
= 1.0
SDUM
: identifies the kind of estimator under consideration: EVENTBIN, RESNUCLEi, USRBDX, USRBIN, USRCOLL, USRTRACK, USRYIELD
Default
: no default!
Default
(option DCYSCORE not requested): no particles originated from radioactive decay are scored, in whatever mode decay is being calculated (see Notes 4, 5 and 6 below).
Notes:
1)
WARNING:
when the DCYSCORE option is applied to a detector with
WHAT(1)
> 0.0, all quantities are expressed PER UNIT TIME (in seconds). For instance, the RESNUCLEi estimator will output Bq, dose estimators will provide dose rate, etc. If
WHAT(1)
= -1., all quantities are normalized per unit primary weight, or per decay if the source has been defined as a radioactive isotope. 2) The cooling time index indicated by
WHAT(1)
> 0. must be one of those defined by means of option DCYTIMES. 3) USRBIN and EVENTBIN detectors are counted together (they belong to the same index sequence), and so are USRTRACK and USRCOLL detectors 4) The scoring of decay radiation in "activation study" non-analogue mode (
WHAT(1)
> 0.0, see Note 1 of RADDECAY) is different from all the rest: decay particles are transported once, and a factor is applied at scoring time depending on the decay time associated to each detector. This factor accounts for the buildup and decay of the parent nucleus at the specified decay time. This factor is NOT AVAILABLE in user routines such as fluscw and comscw (Sec. 13.2.6}, 13.2.2}). 5) If radioactive decay has been requested in "activation study" mode (command RADDECAY with
WHAT(1)
= 1) particles originated from radioactive decay are scored at cooling times requested with DCYTIMES. DCYSCORE, called with
WHAT(1)
> 0.0, is used to associate a detector of type
SDUM
to a particular cooling time. If DCYSCORE is not present, no particles originated from radioactive decay can be scored. 6) If radioactive decay has been requested in "semi-analogue" mode (Monte Carlo sampling: command RADDECAY with
WHAT(1)
> 1), particles originated from radioactive decay are scored by the selected detectors of type
SDUM
together with prompt particles, provided DCYSCORE is issued with
WHAT(1)
= -1.0. If DCYSCORE is not present, no particles originated from radioactive decay can be scored, and any detector will score only prompt particles. 7) If the source has been defined as a radioactive isotope (see command BEAM with
SDUM
= ISOTOPE), the radioactive decay must be activated in semi-analogue mode (see Note 1 of RADDECAY), and therefore
WHAT(1)
of DCYSCORE must be = -1.0. This can be considered as a special case of the situation described in Note 6, where only decay particles are present, and no prompt particles. Also in this case, if DCYSCORE is not present no particles originated from radioactive decay can be scored. And since no prompt particles are present, no scoring at all can take place. Example, for a number-based input:
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
DCYTIMES 86400. 172800. DCYSCORE 1. 0. 0. 4. 8. 2.USRBIN DCYSCORE 2. 0. 0. 1. 5. USRTRACK
* Two cooling times have been defined. Binnings no. 4, 6 and 8 will be
* associated to the first cooling time (one day), and track-length detectors
* no. 1, 2, 3, 4 and 5 will be associated to the second cooling time (2 days)
The same example, in a name-based input: DCYTIMES 86400. 172800. DCYSCORE 1. 0. 0. binning4 binning8 2.USRBIN DCYSCORE 2. 0. 0. trakDet1 trakDet5 USRTRACK

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