{"_buckets": {"deposit": "22d5b02c-a28a-42bc-a614-1c011781e136"}, "_deposit": {"created_by": 228, "id": "11178", "owner": "228", "owners": [228], "owners_ext": {"displayname": "", "username": ""}, "pid": {"revision_id": 0, "type": "depid", "value": "11178"}, "status": "published"}, "_oai": {"id": "oai:meral.edu.mm:recid/00011178"}, "author_link": [], "item_1583103067471": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Comparative Study of Gamma Radiation Dose Rate in Some Metals", "subitem_1551255648112": "en"}]}, "item_1583103085720": {"attribute_name": "Description", "attribute_value_mlt": [{"interim": "Radiation is natural and spontaneous emission of particles. The rate of decay of radioactive substances depend on the number of atoms that are present at the time and it is independent of temperature and pressure. In this study NaI (Tl) detector was used for gamma rays attenuation in some metals. From the experimental values, the linear attenuation coefficient for Pb, Fe and Al were agreed with the theoretical values. Then the calculated value of gamma constant is 0.319 Rm2 /hrCi. The dose rate in air for 10 min is 0.428 mSv/yr and the dose rate after passing through the material for Pb is 0.284 mSv/yr, Fe is 0.326 mSv/yr and Al is 0.396 mSv/yr. The reduced percent of dose rate in medium for Pb is 34%, Fe is 24 % and Al is 7.47 %. It was clearly seen that lead is more reduced radiation than iron and aluminum. From this research, the activity of radioactive source has 0.918 μCi. It is a small amount of activity in research process but closed to stay a long time with them, it is health hazard to the people. So, it was concluded that, the working people with radioactive substances must be used for more effective shielding metals."}]}, "item_1583103108160": {"attribute_name": "Keywords", "attribute_value_mlt": [{"interim": "radiation"}, {"interim": "gamma ray"}, {"interim": "dose rate"}, {"interim": "shielding"}, {"interim": "NaI (Tl) detector"}]}, "item_1583103120197": {"attribute_name": "Files", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "date": [{"dateType": "Available", "dateValue": "2025-07-25"}], "displaytype": "preview", "download_preview_message": "", "file_order": 0, "filename": "Comparative Study of Gamma Radiation Dose Rate in Some Metals.pdf", "filesize": [{"value": "544 KB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_0", "mimetype": "application/pdf", "size": 544000.0, "url": {"url": "https://meral.edu.mm/record/11178/files/Comparative Study of Gamma Radiation Dose Rate in Some Metals.pdf"}, "version_id": "25085655-115d-4cd2-9a34-d7652b1ed696"}]}, "item_1583103131163": {"attribute_name": "Journal articles", "attribute_value_mlt": [{"subitem_issue": "1", "subitem_journal_title": "Yadanabon University Research Journal", "subitem_pages": "288-294", "subitem_volume": "14"}]}, "item_1583105942107": {"attribute_name": "Authors", "attribute_value_mlt": [{"subitem_authors": [{"subitem_authors_fullname": "Hnin Thidar Soe"}, {"subitem_authors_fullname": "Ami Myint"}, {"subitem_authors_fullname": "Ei Ei Moe"}]}]}, "item_1583108359239": {"attribute_name": "Upload type", "attribute_value_mlt": [{"interim": "Publication"}]}, "item_1583108428133": {"attribute_name": "Publication type", "attribute_value_mlt": [{"interim": "Journal article"}]}, "item_1583159729339": {"attribute_name": "Publication date", "attribute_value": "2025-06-25"}, "item_title": "Comparative Study of Gamma Radiation Dose Rate in Some Metals", "item_type_id": "21", "owner": "228", "path": ["1582963788001", "1582966489046"], "permalink_uri": "https://meral.edu.mm/records/11178", "pubdate": {"attribute_name": "Deposit date", "attribute_value": "2025-07-25"}, "publish_date": "2025-07-25", "publish_status": "0", "recid": "11178", "relation": {}, "relation_version_is_last": true, "title": ["Comparative Study of Gamma Radiation Dose Rate in Some Metals"], "weko_shared_id": -1}