Fraction Pattern Attribute
| Tag | (300A,007B) |
|---|---|
| Type | Optional (3) |
| Keyword | FractionPattern |
| Value Multiplicity | 1 |
| Value Representation | Long Text (LT) |
String of 0's (no treatment) and 1's (treatment) describing the fraction pattern for the fractions defined by this set. Length of string is 7 x Number of Fraction Pattern Digits Per Day x Repeat Fraction Cycle Length. The first character of the string represents Monday.
See Section C.36.2.1.1.1.1.
Section C.36.2.1.1.1.1
C.36.2.1.1.1.1 Fraction Pattern
The Radiation Fraction Pattern describes the intended scheme, i.e., how fractions are to be distributed along calendar days for the actual radiation set.
Examples of Fraction Patterns:
-
1 fraction per day (Monday to Friday), no fractions on Saturday and Sunday, 1 week-pattern:
Number of Fraction Pattern Digits Per Day (300A,0079) = 1
Repeat Fraction Cycle Length (300A,007A) = 1
Fraction Pattern (300A,007B) = 1111100
-
2 fractions per day (Monday to Friday), no fractions on Saturday and Sunday 1 week-pattern:
Number of Fraction Pattern Digits Per Day (300A,0079) = 2
Repeat Fraction Cycle Length (300A,007A) = 1
Fraction Pattern (300A,007B) = 11111111110000
-
1 fraction per day (Monday, Wednesday, Friday), no fractions on Saturday and Sunday 1 week-pattern:
Number of Fraction Pattern Digits Per Day (300A,0079) = 1
Repeat Fraction Cycle Length (300A,007A) = 1
Fraction Pattern (300A,007B) = 1010100
-
2 fractions per day (Monday, Wednesday, Friday), one fraction on Saturday morning and Sunday afternoon 1 week-pattern:
Number of Fraction Pattern Digits Per Day (300A,0079) = 2
Repeat Fraction Cycle Length (300A,007A) = 1
Fraction Pattern (300A,007B) = 11001100111001
-
1 fraction per day every other day 2 week-pattern:
Number of Fraction Pattern Digits Per Day (300A,0079) = 1
Repeat Fraction Cycle Length (300A,007A) = 2
Fraction Pattern (300A,007B) = 10101010101010