| Chambers |
10x9-6 |
10x9-6M |
10x9-60 |
10x9-60E |
| Min
Rate |
1
µR/s
|
10
nGy/s |
1
µR/s |
10
nGy/s |
100
nR/s. |
1.nGy/s |
same |
| Max
Rate |
22
R/s |
190
mGy/s |
10
R/s |
90 mGy/s |
2.2
R/s |
19
mGy/s |
same |
| Min
Dose |
10
µR |
100
nGy |
10
µR |
100
nGy |
1
µR |
10
nGy |
same |
| Max
Dose |
79
kR |
.0.7
kGy |
79
kR |
0.7
kGy |
7.9
kR. |
.70
Gy |
same |
| Cine
Specifications |
0.1
µR/f - > 1 R/f
1 nGy/f - >10 mGy/f
|
N/A |
0.01 µR/f - > 100 mR/f
0.1 nGy/f - >1.0 mGy/f |
same |
| Calibration
Accuracy |
±4%
using X-rays @ 60kVp and 2.8 mm AL HVL |
±4%
using X-rays @ 20kVp and 0.26 mm AL HVL |
(-60)
±4% using X-rays @ 150kVp and 10.2 mm AL HVL
(-60E)
±4%
using X-rays @ 50kVp and 0.88 mm AL HVL |
| Exposure
Rate Dependence |
±5%,
0.4 mR/s to 80 R/s, up to 500 R/s for 50 us pulses |
±5%,
0.02 R/min to 600 R/min |
±5%,
2 mR/min to199 R/min |
same |
| Energy
Dependence |
±5%,
30 keV to 1.33 MeV (with build-up material) |
±5%,
10 keV to 40 keV |
(-60)
±5%, 20 keV to 1.33 MeV
(with build-up material)
(-60E)
±5%,
0.2 mm AL HVL to 1.33 MeV (with build-up material) |
| Construction |
Polycarbonate
walls and electrode conductive graphite interior coating; 6 cm3
active volume; 0.05kg |
0.7
mg/cm2 metalized polyester window; polyacetal exterior; 6cm3 active
volume; 0.08 kg |
Polycarbonate
walls; conductive graphite exterior coating; 60 cm3 active volume,
3 m low-noise triax cable; 0.13 kg |
same |
| Chambers |
10x9-3CT |
10x9-180 |
10x9-1800 |
| Min
Rate |
2
µR/s |
.20
nGy/s |
50
nR/s |
500
fGy/s |
5
nR/s. |
50
fGy/s |
| Max
Rate |
40
R/s |
350
mGy/s |
0.6
R/s. |
5.3 mGy/s |
0.02
R/s. |
0.2
mGy/s.. |
| Min
Dose |
20
µR |
200
nGy |
200
nR |
2
nGy |
20
nR . |
200
fGy |
| Max
Dose |
158
kR |
1.4
kGy |
2.6
kR |
23
Gy |
0.26
kR.. |
2.3
Gy |
| Calibration
Accuracy |
±4%
using X-rays @ 150kVp and 10.2
mm AL HVL |
±4%
using X-rays @ 150kVp and 10.2 mm AL HVL |
±4%
using X-rays @ 150kVp and 10.2 mm AL HVL |
| Exposure
Rate Dependence |
±2%,
2mR/s to 40 R/s |
±5%,
20 mR/hr to 2000 R/hr |
+0%,
-5%, 0.1 mR/hr to 20R/hr,
-10% to 65 R/hr |
| Energy
Dependence |
±5%,
3 to 20 mm AL HVL |
±5%,
30 keV to 1.33 MeV (with build up material) |
±5%,
33 keV to 1.33 MeV |
| Construction |
C552
air-equivalent walls and electrode: polyacetal exterior cap; 3 cm3
active volume; 2 m, low noise triax cable; 0.11 kg |
Polycarbonate
walls and electrode; conductive graphite exterior coating; 180 cm3
active volume; 0.11 kg |
Polycarbonate
walls and electrode; conducting graphite exterior coating; 1800
cm3 active volume; 0.54 kg |
| Uniformity
Along Length & Partial Volume Exposure |
±5%,
to within 0.25 cm of chamber ends for a constant volume slice
|
N/A |
N/A |
|
|
|
|
|
|
|
|