INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION
A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, and the acute exposure LD50/60 was determined immed...
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Report |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | Hanks,Gerald E Ainsworth,John E Leong,George F Nachtwey,D. Stuart Page,Norbert P |
| description | A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, and the acute exposure LD50/60 was determined immediately thereafter. These studies indicate that there is a dose rate threshold for injury accumulation under these conditions or protracted irradiation and that the threshold lies between 1.0 and 1.5 R/hr. Recovery from injury accumulated during protracted exposures has been studied by determining the LD50/60 at various times after protracted exposures. These studies indicate a rapid recovery without a lag period that proceeds to a transient acquired radioresistance 15 days after the conclusion of the protracted irradiation. (Author) |
| format | Report |
| fullrecord | <record><control><sourceid>dtic_1RU</sourceid><recordid>TN_cdi_dtic_stinet_AD0648419</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>AD0648419</sourcerecordid><originalsourceid>FETCH-dtic_stinet_AD06484193</originalsourceid><addsrcrecordid>eNrjZAjx9PMKDYpUcHR2DvUN9XEM8fT3U3D0c1EIcnX2D3MFynj6KQR7uLoGKLhGBPgHu7oohPgrBAT5hwQ5OocAec7-ZgYK7o6-vo4KQY4unmADeBhY0xJzilN5oTQ3g4yba4izh25KSWZyfHFJZl5qSbyji4GZiYWJoaUxAWkAS3UtEg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>report</recordtype></control><display><type>report</type><title>INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION</title><source>DTIC Technical Reports</source><creator>Hanks,Gerald E ; Ainsworth,John E ; Leong,George F ; Nachtwey,D. Stuart ; Page,Norbert P</creator><creatorcontrib>Hanks,Gerald E ; Ainsworth,John E ; Leong,George F ; Nachtwey,D. Stuart ; Page,Norbert P ; NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF</creatorcontrib><description>A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, and the acute exposure LD50/60 was determined immediately thereafter. These studies indicate that there is a dose rate threshold for injury accumulation under these conditions or protracted irradiation and that the threshold lies between 1.0 and 1.5 R/hr. Recovery from injury accumulated during protracted exposures has been studied by determining the LD50/60 at various times after protracted exposures. These studies indicate a rapid recovery without a lag period that proceeds to a transient acquired radioresistance 15 days after the conclusion of the protracted irradiation. (Author)</description><language>eng</language><subject>DOSE RATE ; GAMMA RAYS ; MAMMALS ; RADIATION DOSAGE ; RADIATION INJURIES ; Radiobiology ; RECOVERY ; SPLIT-DOSE TECHNIQUE ; THRESHOLDS(PHYSIOLOGY)</subject><creationdate>1967</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27544,27545</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/AD0648419$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hanks,Gerald E</creatorcontrib><creatorcontrib>Ainsworth,John E</creatorcontrib><creatorcontrib>Leong,George F</creatorcontrib><creatorcontrib>Nachtwey,D. Stuart</creatorcontrib><creatorcontrib>Page,Norbert P</creatorcontrib><creatorcontrib>NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF</creatorcontrib><title>INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION</title><description>A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, and the acute exposure LD50/60 was determined immediately thereafter. These studies indicate that there is a dose rate threshold for injury accumulation under these conditions or protracted irradiation and that the threshold lies between 1.0 and 1.5 R/hr. Recovery from injury accumulated during protracted exposures has been studied by determining the LD50/60 at various times after protracted exposures. These studies indicate a rapid recovery without a lag period that proceeds to a transient acquired radioresistance 15 days after the conclusion of the protracted irradiation. (Author)</description><subject>DOSE RATE</subject><subject>GAMMA RAYS</subject><subject>MAMMALS</subject><subject>RADIATION DOSAGE</subject><subject>RADIATION INJURIES</subject><subject>Radiobiology</subject><subject>RECOVERY</subject><subject>SPLIT-DOSE TECHNIQUE</subject><subject>THRESHOLDS(PHYSIOLOGY)</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1967</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZAjx9PMKDYpUcHR2DvUN9XEM8fT3U3D0c1EIcnX2D3MFynj6KQR7uLoGKLhGBPgHu7oohPgrBAT5hwQ5OocAec7-ZgYK7o6-vo4KQY4unmADeBhY0xJzilN5oTQ3g4yba4izh25KSWZyfHFJZl5qSbyji4GZiYWJoaUxAWkAS3UtEg</recordid><startdate>19670306</startdate><enddate>19670306</enddate><creator>Hanks,Gerald E</creator><creator>Ainsworth,John E</creator><creator>Leong,George F</creator><creator>Nachtwey,D. Stuart</creator><creator>Page,Norbert P</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>19670306</creationdate><title>INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION</title><author>Hanks,Gerald E ; Ainsworth,John E ; Leong,George F ; Nachtwey,D. Stuart ; Page,Norbert P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_AD06484193</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1967</creationdate><topic>DOSE RATE</topic><topic>GAMMA RAYS</topic><topic>MAMMALS</topic><topic>RADIATION DOSAGE</topic><topic>RADIATION INJURIES</topic><topic>Radiobiology</topic><topic>RECOVERY</topic><topic>SPLIT-DOSE TECHNIQUE</topic><topic>THRESHOLDS(PHYSIOLOGY)</topic><toplevel>online_resources</toplevel><creatorcontrib>Hanks,Gerald E</creatorcontrib><creatorcontrib>Ainsworth,John E</creatorcontrib><creatorcontrib>Leong,George F</creatorcontrib><creatorcontrib>Nachtwey,D. Stuart</creatorcontrib><creatorcontrib>Page,Norbert P</creatorcontrib><creatorcontrib>NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hanks,Gerald E</au><au>Ainsworth,John E</au><au>Leong,George F</au><au>Nachtwey,D. Stuart</au><au>Page,Norbert P</au><aucorp>NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION</btitle><date>1967-03-06</date><risdate>1967</risdate><abstract>A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, and the acute exposure LD50/60 was determined immediately thereafter. These studies indicate that there is a dose rate threshold for injury accumulation under these conditions or protracted irradiation and that the threshold lies between 1.0 and 1.5 R/hr. Recovery from injury accumulated during protracted exposures has been studied by determining the LD50/60 at various times after protracted exposures. These studies indicate a rapid recovery without a lag period that proceeds to a transient acquired radioresistance 15 days after the conclusion of the protracted irradiation. (Author)</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_dtic_stinet_AD0648419 |
| source | DTIC Technical Reports |
| subjects | DOSE RATE GAMMA RAYS MAMMALS RADIATION DOSAGE RADIATION INJURIES Radiobiology RECOVERY SPLIT-DOSE TECHNIQUE THRESHOLDS(PHYSIOLOGY) |
| title | INJURY ACCUMULATION AND RECOVERY IN SHEEP EXPOSED TO PROTRACTED CO60 GAMMA RADIATION |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-29T21%3A17%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-dtic_1RU&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=unknown&rft.btitle=INJURY%20ACCUMULATION%20AND%20RECOVERY%20IN%20SHEEP%20EXPOSED%20TO%20PROTRACTED%20CO60%20GAMMA%20RADIATION&rft.au=Hanks,Gerald%20E&rft.aucorp=NAVAL%20RADIOLOGICAL%20DEFENSE%20LAB%20SAN%20FRANCISCO%20CALIF&rft.date=1967-03-06&rft_id=info:doi/&rft_dat=%3Cdtic_1RU%3EAD0648419%3C/dtic_1RU%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |