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|  Radiological Assessor Training
DOE-HDBK-1141-2001
Student's Guide
A. Prompt radiation
Measurements of prompt radiation fields are
required for occupational and environmental
monitoring and for accident dosimetry and
calibration of dosimeters, as well as for research
purposes. In selecting measurement techniques
and instruments, it is important to consider the
purpose of the measurement and the radiation
field's parameters.
1. Mixed radiation fields
The complexity of the radiation field and the
radiation measurements increase with the
energy of the accelerator.
2. Pulsed radiation
Prompt pulsed radiation must be measured
with specialized survey instruments. Ion
chambers are typically used and are
recommended.
3. Neutrons
Neutron monitoring is complicated and must
be conducted by highly trained individuals
with specialized instruments.
B. Environmental monitoring
Environmental sampling/monitoring may include:
Prompt radiation (neutrons, skyshine, muons)
Sampling exhausted air from beam housings
Surface/groundwater (on and off site)
Monitoring of radiation levels at site boundary
(from storage areas)
Module 13 - 12
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