wheres
= guru @xpoeure pate
& = time between output pulses
A,k = design perensters
If the exror in reading time betwoen pulses (i.e. time bese) is At,
then:
e+ Mee k(t + a)®
ae = bf (t + at)" @ ¢%}
a= (ts a)" . e”
(2.5)
¢"
z
For £t1, this formula reduces to the definition of differentials.
t
ge 2 nt
:
where:
(2.8)
¢
fr = the relative error in gemme exposure rate due to
2
errors in the time measurement
4 = the relative tine measurement error
For the Conrad I detector, n = -2, ands
e
& - ih
(2.7)
8
In practice, at high-pulse-repetition sates, a number of pulses N
over a period T wae used to read out the data. Hence, from equation 2.$;
dc = mn +at)" = On)”
*
(e)"
ics (t+ )® ~ (r)*
where:
(2.8)
*
ie
'
ont.
ST, bua eit
At now includes all errors in reading the time interval T.
31