IRRPROFIle

Summary

defines an irradiation profile for radioactive decay calculations ​​

​

See also DCYTIMES, DCYSCORE, RADDECAY, RESNUCLEi

WHAT(1) :

length of a newly defined irradiation interval (in s)

> 0.0:

a new interval is added with length WHAT(1)

= 0.0:

ignored

< 0.0:

the last defined interval (if any) is deleted

Default

:  no new irradiation interval is defined

WHAT(2) :

beam intensity of the newly defined (see WHAT(1)) irradiation interval

≥ 0.0:

beam intensity in particles/s​ (0.0 is accepted)

< 0.0:

considered as 0.0

Default

= 0.0  particles/s

WHAT(3) :

the same as WHAT(1)

WHAT(4) :

the same as WHAT(2)

WHAT(5) :

the same as WHAT(1)

WHAT(6) :

the same as WHAT(2)

SDUM

: not used

Default

(option IRRPROFIle not given): no irradiation interval is defined

Notes

  1. Decay times​ as requested by DCYTIMES commands will be calculated from the end of the last one. Scoring during irradiation​ can be obtained giving negative decay times in DCYTIMES.

  2. Several cards can be combined up to the desired number of irradiation intervals.

  3. A negative value inserted in an odd WHATs (i.e. WHAT(1), WHAT(3), WHAT(5)) will delete the previous irradiation interval. A series of negative odd WHATs will delete as many previously defined intervals.

Example 1:

*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
IRRPROFI       3600.    1.5E12     7200.       0.0      600.    4.2E12
IRRPROFI       1200.       0.0     3600.    1.0E10
* The defined irradiation profile consists of:
* 3600s (1 hour) of irradiation at an intensity of 1.5E12 particles/s
* 7200s (2 hours) of cooling (no beam)
* 600s  (1o minutes) of irradiation at an intensity of 4.2E12 particles/s
* 1200s (20 minutes) of cooling (no beam)
* 3600s (1 hour) of irradiation at an intensity of 1.0E10 particles/s

Example 2:

The same profile could have been achieved using separate IRRPROFI cards
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
IRRPROFI       3600.    1.5E12
IRRPROFI       7200.       0.0
IRRPROFI        600.    4.2E12
IRRPROFI       1200.       0.0
IRRPROFI       3600.    1.0E10
* The defined irradiation profile consists of:
* 3600s (1 hour) of irradiation at an intensity of 1.5E12 particles/s
* 7200s (2 hours) of cooling (no beam)
* 600s  (1o minutes) of irradiation at an intensity of 4.2E12 particles/s
* 1200s (20 minutes) of cooling (no beam)
* 3600s (1 hour) of irradiation at an intensity of 1.0E10 particles/s

Example 3:

*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
IRRPROFI       3600.    1.5E12     7200.       0.0      600.    4.2E12
IRRPROFI      -1200.       0.0    -3600.    1.0E10
* The 4th and 5th irradiation intervals defined have negative duration, therefore
* the two previous intervales will be deleted. The irradiation profile will
* consist of a single interval 3600s long with an intensity of 1.5E12 particle/s