Abstract：
:Many of the inadequacies of the system presently used for surveying environments containing penetrating radiation stem from the impossibility of defining a radiation parameter which is additive, measurable and closely related to peak dose equivalent in the body. Many of the present conceptual difficulties would be eliminated if surveys were made in terms of a quantity 'dose equivalent ceiling' defined as the sum of the peak dose equivalents generated by all the components of the field if each were incident normally to the front face of an anthropomorphic phantom. 'Dose equivalent ceiling' is close to the quantity measured by existing instruments, is both additive and measurable, and can be rigorously related to primary radiation field quantities. It is always greater than peak dose equivalent in the body, and would be used to define an exposure period during which a given dose equivalent could not be exceeded. The dose to specific parts of the person's body would then be estimated by personal dosimetry. Fields of low penetrating radiation could continue to be surveyed in terms of dose to specific superficial organs. Dose equivalent ceiling, which corresponds to the instrumental measurement, exceeds dose equivalent index, an indication of peak dose equivalent in the body, by a factor which can be as large as six.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Harvey JRdoi
10.1088/0031-9155/20/6/012subject
Has Abstractpub_date
1975-11-01 00:00:00pages
1003-14issue
6eissn
0031-9155issn
1361-6560journal_volume
20pub_type
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journal_title：Physics in medicine and biology
pub_type： 杂志文章
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journal_title：Physics in medicine and biology
pub_type： 杂志文章
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journal_title：Physics in medicine and biology
pub_type： 评论,杂志文章
doi：10.1088/1361-6560/aae0e4
更新日期：2018-10-03 00:00:00
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pub_type： 杂志文章
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journal_title：Physics in medicine and biology
pub_type： 杂志文章,评审
doi：10.1088/0031-9155/42/5/015
更新日期：1997-05-01 00:00:00
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journal_title：Physics in medicine and biology
pub_type： 杂志文章
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journal_title：Physics in medicine and biology
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journal_title：Physics in medicine and biology
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journal_title：Physics in medicine and biology
pub_type： 杂志文章
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pub_type： 杂志文章
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