Detectors

1
Detectors
point count detectors linear position-sensitive
detectors area detectors energy dispersive
detectors
2
Detectors
Ideal characteristics zero dead time
3
Detectors
Ideal characteristics zero dead time
4
Detectors
Ideal characteristics zero dead time sample
dead time correction
5
Detectors
Ideal characteristics zero dead time
6
Detectors
Ideal characteristics zero dead time high
energy resolution high spatial resolution
7
Detectors
Ideal characteristics zero dead time high
energy resolution high spatial resolution high
stability zero noise small
8
Detectors
Types film fluorescent screen image plates
and papers
9
Detectors
Types - image plates and papers
10
Detectors
Types - image plates and papers
11
Detectors
Types - image plates and papers
12
Detectors
Types - image plates and papers Advantages -
good spatial resolution (50 ?) high speed
(minutes) linear intensity response (5
orders of magnitude)
13
Detectors
Types - image plates and papers Advantages -
good spatial resolution (50 ?) high speed
(minutes) linear intensity response (5
orders of magnitude) papers can be curved
simultaneous recording of large regions of
reciprocal space (like film)
14
Detectors
Types - image plates and papers Advantages -
good spatial resolution (50 ?) high speed
(minutes) linear intensity response (5
orders of magnitude) papers can be curved
simultaneous recording of large regions of
reciprocal space (like film) Disadvantages -
expensive would like better resolution
15
Detectors
Types film fluorescent screen image plates
and papers counters gas-filled - Geiger
proportional
16
Detectors
Types film fluorescent screen image plates
and papers counters gas-filled
scintillation
17
Detectors
Types counters gas-filled
scintillation solid state
18
Detectors
Types counters gas-filled
scintillation solid state position
sensing - linear
19
Detectors
Types counters gas-filled
scintillation solid state position
sensing - linear position sensing -
2-D CCD wire detectors