POSDION REXTAR X, Руководство по эксплуатации и обслуживанию

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1) Standards for Protection Against Radiation, 10 CFR 20 (US Federal Standards), 1994
(see also NCRP Report No. 116)
2) NCRP Report No. 145 (National Council on Radiation Protection and Measurements), p7-9
3) "Estimated Cosmic Radiation Doses for Flight Personnel", Feng YJ et al, Space Medicine and Medical Engineering,
15(4) 2002, p265-9
4) Normalized average assumes 7,200 exposures per year, and the average length of exposure for
E-speed Film = 0.20 seconds, digital sensor = 0.10 seconds
*Comparative Data for Hand and Extremity Exposure (Total Annual Operator Exposures)
Occupational Dose Limit
1
500 mSv
Occupational Dose Limit Required Dosimetry
1
50 mSv
Average Exposure Using
Rextar X
with D - Speed Film
2
0.40 mSv
Average Exposure Using
Rextar X
with F - Speed Film or Digital
Sensor
2
0.20 mSv
1) Standards for Protection against Radiation, 10 CFR 20 (US Federal Standards), 1994 (see also NCRP Report No. 116 )
2) Normalized average (includes leakage and backscatter radiation) assumes 7,200 exposures per year, and the average
length of exposure for E-speed Film = 0.20 seconds, digital sensor = 0.10 seconds
Fixed Beam Limiting
Device
Backscatter
Shield
Primary Protection Shield
X-ray
Generating
Focal Spot
P. 37D
Inner Cone
Shielded
Back-Scatter Shield is 12mm thick,
x 6" in diameter and has a lead
equivalence of 0.5 or greater mmPb