The W Values for Photons and Electrons in Mixtures of Argon and Alkanes
The mean energy required to form an ion pair for 5.89-keV 55 Fe and 1.49-keV Al photons in mixtures of argon-methane and argon-butane gas was measured using the proportional-counter technique. The measured W values in the mixtures are lower than what is expected for regular mixtures, i.e., mixtures...
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| Veröffentlicht in: | Radiation research 1991-01, Vol.125 (1), p.1-5 |
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| creator | KRAJCAR BRONIC, I SRDOC, D OBELIC, B |
| description | The mean energy required to form an ion pair for 5.89-keV 55 Fe and 1.49-keV Al photons in mixtures of argon-methane and argon-butane gas was measured using the proportional-counter technique. The measured W values in the mixtures are lower than what is expected for regular mixtures, i.e., mixtures without an appreciable intermolecular energy transfer between the mixture components. The additional ionization yield through the nonmetastable Penning processes reaches a maximum abruptly at very low partial pressure of polyatomic admixtures (alkanes), decreasing steadily with higher admixture partial pressure. |
| doi_str_mv | 10.2307/3577974 |
| format | Article |
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The measured W values in the mixtures are lower than what is expected for regular mixtures, i.e., mixtures without an appreciable intermolecular energy transfer between the mixture components. The additional ionization yield through the nonmetastable Penning processes reaches a maximum abruptly at very low partial pressure of polyatomic admixtures (alkanes), decreasing steadily with higher admixture partial pressure.</description><identifier>ISSN: 0033-7587</identifier><identifier>EISSN: 1938-5404</identifier><identifier>DOI: 10.2307/3577974</identifier><identifier>PMID: 1986394</identifier><identifier>CODEN: RAREAE</identifier><language>eng</language><publisher>Oak Brook, Il: Academic Press, Inc</publisher><subject>654001 - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments ; Admixtures ; ALKANES ; ARGON ; BETA DECAY RADIOISOTOPES ; Biological and medical sciences ; BUTANE ; Butanes ; DISPERSIONS ; ELECTRON CAPTURE RADIOISOTOPES ; ELECTRONS ; ELEMENTARY PARTICLES ; ELEMENTS ; ENERGY TRANSFER ; Energy value ; EVEN-ODD NUCLEI ; FERMIONS ; FLUIDS ; Gas mixtures ; GASES ; HYDROCARBONS ; INTERMEDIATE MASS NUCLEI ; IONIZATION ; Ions ; IRON 55 ; IRON ISOTOPES ; ISOTOPES ; LEPTONS ; MASSLESS PARTICLES ; MEASURING INSTRUMENTS ; Medical sciences ; METHANE ; MIXTURES ; NONMETALS ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEI ; ORGANIC COMPOUNDS ; PARTIAL PRESSURE ; PHOTONS ; PROPORTIONAL COUNTERS ; Radiation ; RADIATION DETECTORS ; RADIOISOTOPES ; Radiometry - instrumentation ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) ; RARE GASES ; Space life sciences ; YEARS LIVING RADIOISOTOPES</subject><ispartof>Radiation research, 1991-01, Vol.125 (1), p.1-5</ispartof><rights>Copyright 1991 Academic Press, Inc.</rights><rights>1992 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-2a9178ceae6ca1081e63c9a6f70871dc4694c3c35a677528dad7cf5779b867533</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3577974$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/3577974$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,780,784,803,885,4024,27923,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5396118$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1986394$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6140542$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>KRAJCAR BRONIC, I</creatorcontrib><creatorcontrib>SRDOC, D</creatorcontrib><creatorcontrib>OBELIC, B</creatorcontrib><title>The W Values for Photons and Electrons in Mixtures of Argon and Alkanes</title><title>Radiation research</title><addtitle>Radiat Res</addtitle><description>The mean energy required to form an ion pair for 5.89-keV 55 Fe and 1.49-keV Al photons in mixtures of argon-methane and argon-butane gas was measured using the proportional-counter technique. The measured W values in the mixtures are lower than what is expected for regular mixtures, i.e., mixtures without an appreciable intermolecular energy transfer between the mixture components. The additional ionization yield through the nonmetastable Penning processes reaches a maximum abruptly at very low partial pressure of polyatomic admixtures (alkanes), decreasing steadily with higher admixture partial pressure.</description><subject>654001 - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments</subject><subject>Admixtures</subject><subject>ALKANES</subject><subject>ARGON</subject><subject>BETA DECAY RADIOISOTOPES</subject><subject>Biological and medical sciences</subject><subject>BUTANE</subject><subject>Butanes</subject><subject>DISPERSIONS</subject><subject>ELECTRON CAPTURE RADIOISOTOPES</subject><subject>ELECTRONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>ELEMENTS</subject><subject>ENERGY TRANSFER</subject><subject>Energy value</subject><subject>EVEN-ODD NUCLEI</subject><subject>FERMIONS</subject><subject>FLUIDS</subject><subject>Gas mixtures</subject><subject>GASES</subject><subject>HYDROCARBONS</subject><subject>INTERMEDIATE MASS NUCLEI</subject><subject>IONIZATION</subject><subject>Ions</subject><subject>IRON 55</subject><subject>IRON ISOTOPES</subject><subject>ISOTOPES</subject><subject>LEPTONS</subject><subject>MASSLESS PARTICLES</subject><subject>MEASURING INSTRUMENTS</subject><subject>Medical sciences</subject><subject>METHANE</subject><subject>MIXTURES</subject><subject>NONMETALS</subject><subject>NUCLEAR PHYSICS AND RADIATION PHYSICS</subject><subject>NUCLEI</subject><subject>ORGANIC COMPOUNDS</subject><subject>PARTIAL PRESSURE</subject><subject>PHOTONS</subject><subject>PROPORTIONAL COUNTERS</subject><subject>Radiation</subject><subject>RADIATION DETECTORS</subject><subject>RADIOISOTOPES</subject><subject>Radiometry - instrumentation</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</subject><subject>RARE GASES</subject><subject>Space life sciences</subject><subject>YEARS LIVING RADIOISOTOPES</subject><issn>0033-7587</issn><issn>1938-5404</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp10M9LwzAUB_AgypxT_AuEIqKnarKk-XEcY05hooepx5ClqevskpmkoP-93VrcyVN4vA8v730BOEfwdoghu8MZY4KRA9BHAvM0I5Acgj6EGKcs4-wYnISwgk2NqOiBHhKcYkH6YDpfmuQ9eVNVbUJSOJ-8LF10NiTK5smkMjr6bVXa5Kn8jrVvlCuSkf9wdkdG1aeyJpyCo0JVwZx17wC83k_m44d09jx9HI9mqcYUxXSoBGJcG2WoVghyZCjWQtGCQc5QrgkVRGONM0UZy4Y8VznTxfa2Bacsw3gALtu5LsRSBl1Go5faWdssKikiMCPDBl23aOPdV3NXlOsyaFNVzaauDpJDTAnbwZsWau9C8KaQG1-ulf-RCMptrrLLtZEX3ch6sTb53rVBNv2rrq-CVlXhldVl-GMZFhQhvmerEJ3_97df6HOHRg</recordid><startdate>19910101</startdate><enddate>19910101</enddate><creator>KRAJCAR BRONIC, I</creator><creator>SRDOC, D</creator><creator>OBELIC, B</creator><general>Academic Press, Inc</general><general>Radiation Research Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>19910101</creationdate><title>The W Values for Photons and Electrons in Mixtures of Argon and Alkanes</title><author>KRAJCAR BRONIC, I ; SRDOC, D ; OBELIC, B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-2a9178ceae6ca1081e63c9a6f70871dc4694c3c35a677528dad7cf5779b867533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>654001 - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments</topic><topic>Admixtures</topic><topic>ALKANES</topic><topic>ARGON</topic><topic>BETA DECAY RADIOISOTOPES</topic><topic>Biological and medical sciences</topic><topic>BUTANE</topic><topic>Butanes</topic><topic>DISPERSIONS</topic><topic>ELECTRON CAPTURE RADIOISOTOPES</topic><topic>ELECTRONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>ELEMENTS</topic><topic>ENERGY TRANSFER</topic><topic>Energy value</topic><topic>EVEN-ODD NUCLEI</topic><topic>FERMIONS</topic><topic>FLUIDS</topic><topic>Gas mixtures</topic><topic>GASES</topic><topic>HYDROCARBONS</topic><topic>INTERMEDIATE MASS NUCLEI</topic><topic>IONIZATION</topic><topic>Ions</topic><topic>IRON 55</topic><topic>IRON ISOTOPES</topic><topic>ISOTOPES</topic><topic>LEPTONS</topic><topic>MASSLESS PARTICLES</topic><topic>MEASURING INSTRUMENTS</topic><topic>Medical sciences</topic><topic>METHANE</topic><topic>MIXTURES</topic><topic>NONMETALS</topic><topic>NUCLEAR PHYSICS AND RADIATION PHYSICS</topic><topic>NUCLEI</topic><topic>ORGANIC COMPOUNDS</topic><topic>PARTIAL PRESSURE</topic><topic>PHOTONS</topic><topic>PROPORTIONAL COUNTERS</topic><topic>Radiation</topic><topic>RADIATION DETECTORS</topic><topic>RADIOISOTOPES</topic><topic>Radiometry - instrumentation</topic><topic>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</topic><topic>RARE GASES</topic><topic>Space life sciences</topic><topic>YEARS LIVING RADIOISOTOPES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KRAJCAR BRONIC, I</creatorcontrib><creatorcontrib>SRDOC, D</creatorcontrib><creatorcontrib>OBELIC, B</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Radiation research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KRAJCAR BRONIC, I</au><au>SRDOC, D</au><au>OBELIC, B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The W Values for Photons and Electrons in Mixtures of Argon and Alkanes</atitle><jtitle>Radiation research</jtitle><addtitle>Radiat Res</addtitle><date>1991-01-01</date><risdate>1991</risdate><volume>125</volume><issue>1</issue><spage>1</spage><epage>5</epage><pages>1-5</pages><issn>0033-7587</issn><eissn>1938-5404</eissn><coden>RAREAE</coden><abstract>The mean energy required to form an ion pair for 5.89-keV 55 Fe and 1.49-keV Al photons in mixtures of argon-methane and argon-butane gas was measured using the proportional-counter technique. The measured W values in the mixtures are lower than what is expected for regular mixtures, i.e., mixtures without an appreciable intermolecular energy transfer between the mixture components. The additional ionization yield through the nonmetastable Penning processes reaches a maximum abruptly at very low partial pressure of polyatomic admixtures (alkanes), decreasing steadily with higher admixture partial pressure.</abstract><cop>Oak Brook, Il</cop><pub>Academic Press, Inc</pub><pmid>1986394</pmid><doi>10.2307/3577974</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0033-7587 |
| ispartof | Radiation research, 1991-01, Vol.125 (1), p.1-5 |
| issn | 0033-7587 1938-5404 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6140542 |
| source | MEDLINE; JSTOR Archive Collection A-Z Listing |
| subjects | 654001 - Radiation & Shielding Physics- Radiation Physics, Shielding Calculations & Experiments Admixtures ALKANES ARGON BETA DECAY RADIOISOTOPES Biological and medical sciences BUTANE Butanes DISPERSIONS ELECTRON CAPTURE RADIOISOTOPES ELECTRONS ELEMENTARY PARTICLES ELEMENTS ENERGY TRANSFER Energy value EVEN-ODD NUCLEI FERMIONS FLUIDS Gas mixtures GASES HYDROCARBONS INTERMEDIATE MASS NUCLEI IONIZATION Ions IRON 55 IRON ISOTOPES ISOTOPES LEPTONS MASSLESS PARTICLES MEASURING INSTRUMENTS Medical sciences METHANE MIXTURES NONMETALS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEI ORGANIC COMPOUNDS PARTIAL PRESSURE PHOTONS PROPORTIONAL COUNTERS Radiation RADIATION DETECTORS RADIOISOTOPES Radiometry - instrumentation Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) RARE GASES Space life sciences YEARS LIVING RADIOISOTOPES |
| title | The W Values for Photons and Electrons in Mixtures of Argon and Alkanes |
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