475 / 879
131
107
86
50
60
71
464
426
354
682
602
278
316
258
242
282
271
208
0
100
200
300
400
500
600
700
800
EORTC survey
1992
EORTC survey
2007
EORTC survey
2012
Dutch survey
2005
Dutch survey
2009
ACR/ASTRO
2011
Patients/FTE
technologists/RTT physicists
radiation oncologists
Management perspective: staff efficiency
Planning
performed
by RTTs