Abstract：
:The level and distribution of radiofrequency energy absorbed in a child's head during the use of a mobile phone compared to those in an adult head has been a controversial issue in recent years. It has been suggested that existing methods that are used to determine specific absorption rate (SAR) and assess compliance with exposure standards using an adult head model may not adequately account for potentially higher levels of exposure in children due to their smaller head size. The present study incorporates FDTD computations of locally averaged SAR in two different anatomically correct adult and child head models using the IEEE standard (Std. C95.3-2002) SAR averaging algorithm. The child head models were obtained by linear scaling of the adult head model to replicate the conditions of previous studies reported in the literature and also by transforming the different adult head models based on data on the external shapes of children's heads. The tissue properties of the adult and corresponding child head models were kept the same. In addition, modeling and experimental measurements were made using three spheres filled with a tissue-equivalent mixture to approximate heads of increasing size. Results show that the peak local average SAR over 1 g and 10 g of tissue and the electromagnetic energy penetration depths are about the same in all of the head models under the same exposure conditions. When making interlaboratory comparisons, the model and the SAR averaging algorithm used must be standardized to minimize controversy.
journal_name
Radiat Resjournal_title
Radiation researchauthors
Bit-Babik G,Guy AW,Chou CK,Faraone A,Kanda M,Gessner A,Wang J,Fujiwara Odoi
10.1667/rr3353subject
Has Abstractpub_date
2005-05-01 00:00:00pages
580-90issue
5eissn
0033-7587issn
1938-5404pii
RR3353journal_volume
163pub_type
杂志文章abstract：:The correlation between the protein content of nuclei and heat-induced cell killing was determined for HeLa cells with various levels of thermotolerance. Thermotolerance was induced by heating cells at 45 degrees C for 15 or 30 min and then incubating them at 37 degrees C for 5 or 24 h. This procedure resulted in four...
journal_title：Radiation research
pub_type： 杂志文章
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更新日期：1994-05-01 00:00:00
abstract：:Chomentowski, M., Kellerer, A. M. and Pierce, D. A. Radiation Dose Dependences in the Atomic Bomb Survivor Cancer Mortality Data: A Model-Free Visualization. The standard approach to obtaining nominal risk coefficients for radiation-related cancer involves fitting linear or linear-quadratic dose-response functions. Th...
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1995-08-01 00:00:00
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journal_title：Radiation research
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doi：10.1667/RR2478.1
更新日期：2011-06-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：10.1667/rr3257
更新日期：2004-12-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：10.1667/rr3169
更新日期：2004-05-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1988-11-01 00:00:00
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pub_type： 杂志文章
doi：10.1667/RR2888.1
更新日期：2012-11-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1968-12-01 00:00:00
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journal_title：Radiation research
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更新日期：2009-05-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：10.1667/0033-7587(2000)153[0479:pddihb]2.0.co;2
更新日期：2000-04-01 00:00:00
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更新日期：2013-06-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
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journal_title：Radiation research
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pub_type： 杂志文章
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更新日期：2013-06-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1990-08-01 00:00:00
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pub_type： 杂志文章
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更新日期：2014-05-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
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journal_title：Radiation research
pub_type： 杂志文章
doi：
更新日期：1989-10-01 00:00:00
