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An Instrument for Measuring Ambient Dose Equivalent, H(10)
The design and calibration of a small and simple instrument for measuring the ambient dose equivalent, H*(10), in photon fields is described. Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotro...
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Published in: | Radiation protection dosimetry 1996-01, Vol.67 (1), p.33-39 |
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Language: | English |
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container_issue | 1 |
container_start_page | 33 |
container_title | Radiation protection dosimetry |
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creator | Carlsson, C.A. Carlsson, G.A. Lund, E. Matscheko, G. Pettersson, H.B.L. |
description | The design and calibration of a small and simple instrument for measuring the ambient dose equivalent, H*(10), in photon fields is described. Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotropic response. In the interval 0.1-100 mSv and for the energy range 30 keV to 1.25 MeV the energy response is within -31% and +15% relative to that of 137Cs gamma radiation (662 keV). In practical use, it is therefore sufficient to calibrate the instrument in a 137Cs gamma field using the corresponding conversion coefficient H*(10)/Kair taken from tabulations. The possibility of using the instrument to monitor the ambient dose equivalent for energies above 1.25 MeV is discussed and indicates that the range of applicability can be extended to 4.4 MeV with an energy response within -10% relative to 662 keV. |
doi_str_mv | 10.1093/oxfordjournals.rpd.a031794 |
format | article |
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Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotropic response. In the interval 0.1-100 mSv and for the energy range 30 keV to 1.25 MeV the energy response is within -31% and +15% relative to that of 137Cs gamma radiation (662 keV). In practical use, it is therefore sufficient to calibrate the instrument in a 137Cs gamma field using the corresponding conversion coefficient H*(10)/Kair taken from tabulations. The possibility of using the instrument to monitor the ambient dose equivalent for energies above 1.25 MeV is discussed and indicates that the range of applicability can be extended to 4.4 MeV with an energy response within -10% relative to 662 keV.</description><identifier>ISSN: 0144-8420</identifier><identifier>ISSN: 1742-3406</identifier><identifier>EISSN: 1742-3406</identifier><identifier>DOI: 10.1093/oxfordjournals.rpd.a031794</identifier><identifier>CODEN: RPDODE</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Applied radiobiology (equipment, dosimetry...) ; Biological and medical sciences ; Biological effects of radiation ; Fundamental and applied biological sciences. 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Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotropic response. In the interval 0.1-100 mSv and for the energy range 30 keV to 1.25 MeV the energy response is within -31% and +15% relative to that of 137Cs gamma radiation (662 keV). In practical use, it is therefore sufficient to calibrate the instrument in a 137Cs gamma field using the corresponding conversion coefficient H*(10)/Kair taken from tabulations. The possibility of using the instrument to monitor the ambient dose equivalent for energies above 1.25 MeV is discussed and indicates that the range of applicability can be extended to 4.4 MeV with an energy response within -10% relative to 662 keV.</description><subject>Applied radiobiology (equipment, dosimetry...)</subject><subject>Biological and medical sciences</subject><subject>Biological effects of radiation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>MEDICIN</subject><subject>MEDICINE</subject><subject>Tissues, organs and organisms biophysics</subject><issn>0144-8420</issn><issn>1742-3406</issn><issn>1742-3406</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNpVkNFKwzAUhoMoOKfvUMQLhXUmTZo0u6vbdINNb1RkNyFN05HZtTVpdb69HR0Drw45-f7_wAfANYJDBDm-L3dZadNN2dhC5m5oq3QoIUaMkxPQQ4wEPiaQnoIeRIT4EQngObhwbgNhwHhIemAUF968cLVttrqovbbNW2rpGmuKtRdvE7PfTkqnvelXY75l3r4H3uwWwbtLcJa1R_XVYfbB2-P0dTzzFy9P83G88BWmsPYplCSlHKWSMh2oBGsYMY1DhDLNoYIh05lONVYhDJKEckwiqSMW0IQkaaoo7oNB1-t-dNUkorJmK-2vKKURE_Mei9KuRW4aESIa8BYfdbiypXNWZ8cAgmIvTfyXJlpp4iCtDd904Uo6JfPMykIZd2zAiOOAsBbzO8y4Wu-O39J-CsowC8XsYyX4mNKHaLUUz_gPueOCWA</recordid><startdate>19960101</startdate><enddate>19960101</enddate><creator>Carlsson, C.A.</creator><creator>Carlsson, G.A.</creator><creator>Lund, E.</creator><creator>Matscheko, G.</creator><creator>Pettersson, H.B.L.</creator><general>Oxford University Press</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ADTPV</scope><scope>AOWAS</scope><scope>DG8</scope></search><sort><creationdate>19960101</creationdate><title>An Instrument for Measuring Ambient Dose Equivalent, H(10)</title><author>Carlsson, C.A. ; Carlsson, G.A. ; Lund, E. ; Matscheko, G. ; Pettersson, H.B.L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c360t-60a4d691da67e2cb3e087e3511fe90c057efede3c502bb69348ae8726b4bddc63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Applied radiobiology (equipment, dosimetry...)</topic><topic>Biological and medical sciences</topic><topic>Biological effects of radiation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>MEDICIN</topic><topic>MEDICINE</topic><topic>Tissues, organs and organisms biophysics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Carlsson, C.A.</creatorcontrib><creatorcontrib>Carlsson, G.A.</creatorcontrib><creatorcontrib>Lund, E.</creatorcontrib><creatorcontrib>Matscheko, G.</creatorcontrib><creatorcontrib>Pettersson, H.B.L.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>SwePub</collection><collection>SwePub Articles</collection><collection>SWEPUB Linköpings universitet</collection><jtitle>Radiation protection dosimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Carlsson, C.A.</au><au>Carlsson, G.A.</au><au>Lund, E.</au><au>Matscheko, G.</au><au>Pettersson, H.B.L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Instrument for Measuring Ambient Dose Equivalent, H(10)</atitle><jtitle>Radiation protection dosimetry</jtitle><addtitle>Radiat Prot Dosimetry</addtitle><date>1996-01-01</date><risdate>1996</risdate><volume>67</volume><issue>1</issue><spage>33</spage><epage>39</epage><pages>33-39</pages><issn>0144-8420</issn><issn>1742-3406</issn><eissn>1742-3406</eissn><coden>RPDODE</coden><abstract>The design and calibration of a small and simple instrument for measuring the ambient dose equivalent, H*(10), in photon fields is described. Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotropic response. In the interval 0.1-100 mSv and for the energy range 30 keV to 1.25 MeV the energy response is within -31% and +15% relative to that of 137Cs gamma radiation (662 keV). In practical use, it is therefore sufficient to calibrate the instrument in a 137Cs gamma field using the corresponding conversion coefficient H*(10)/Kair taken from tabulations. The possibility of using the instrument to monitor the ambient dose equivalent for energies above 1.25 MeV is discussed and indicates that the range of applicability can be extended to 4.4 MeV with an energy response within -10% relative to 662 keV.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><doi>10.1093/oxfordjournals.rpd.a031794</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Applied radiobiology (equipment, dosimetry...) Biological and medical sciences Biological effects of radiation Fundamental and applied biological sciences. Psychology MEDICIN MEDICINE Tissues, organs and organisms biophysics |
title | An Instrument for Measuring Ambient Dose Equivalent, H(10) |
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