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data-event-name="pinnable-header.vector-main-menu.pin">alih ke bar sisi</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">sorokkan</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Pandu arah </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-Laman-Utama" class="mw-list-item"><a href="/wiki/Laman_Utama"><span>Laman Utama</span></a></li><li id="n-Tinjau" class="mw-list-item"><a href="/wiki/Wikipedia:Tinjau"><span>Tinjau</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Hal_semasa" title="Cari maklumat latar belakang mengenai peristiwa semasa"><span>Hal semasa</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Khas:Rawak" title="Muat laman rawak [x]" accesskey="x"><span>Rencana rawak</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Perhubungan </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-Tentang-Wikipedia" class="mw-list-item"><a href="/wiki/Wikipedia:Perihal"><span>Tentang Wikipedia</span></a></li><li id="n-Gerbang-komuniti" class="mw-list-item"><a href="/wiki/Wikipedia:Gerbang_Komuniti"><span>Gerbang komuniti</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Khas:Perubahan_terkini" title="Senarai perubahan terkini dalam wiki [r]" accesskey="r"><span>Perubahan terkini</span></a></li><li id="n-Hubungi-kami" class="mw-list-item"><a href="/wiki/Wikipedia:Hubungi_kami"><span>Hubungi kami</span></a></li><li id="n-Menderma" class="mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ms.wikipedia.org&uselang=ms"><span>Menderma</span></a></li><li id="n-help" class="mw-list-item"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents" title="Tempat mencari jawapan"><span>Bantuan</span></a></li><li id="n-Kedai-Kopi" class="mw-list-item"><a href="/wiki/Wikipedia:Kedai_Kopi"><span>Kedai Kopi</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Laman_Utama" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="Ensiklopedia Bebas" src="/static/images/mobile/copyright/wikipedia-tagline-ms.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Khas:Cari" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Cari di wiki ini [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Cari</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Cari Wikipedia" aria-label="Cari Wikipedia" autocapitalize="sentences" title="Cari di wiki ini [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Khas:Cari"> </div> <button class="cdx-button cdx-search-input__end-button">Cari</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Alat peribadi"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Penampilan"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Tukar penampilan saiz, lebar dan warna fon laman" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Penampilan" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Penampilan</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ms.wikipedia.org&uselang=ms" class=""><span>Derma</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Khas:Buka_akaun&returnto=Sinar-X&returntoquery=action%3Dedit" title="Anda digalakkan untuk membuka akaun dan melog masuk; walau bagaimanapun, ianya tidak wajib" class=""><span>Buka akaun</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Khas:Log_masuk&returnto=Sinar-X&returntoquery=action%3Dedit" title="Anda digalakkan untuk melog masuk; walau bagaimanapun, ia tidak wajib. [o]" accesskey="o" class=""><span>Log masuk</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Lebih pilihan" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Alat peribadi" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Alat peribadi</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menu pengguna" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ms.wikipedia.org&uselang=ms"><span>Derma</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Khas:Buka_akaun&returnto=Sinar-X&returntoquery=action%3Dedit" title="Anda digalakkan untuk membuka akaun dan melog masuk; walau bagaimanapun, ianya tidak wajib"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Buka akaun</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Khas:Log_masuk&returnto=Sinar-X&returntoquery=action%3Dedit" title="Anda digalakkan untuk melog masuk; walau bagaimanapun, ia tidak wajib. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log masuk</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Laman untuk penyunting log keluar <a href="/wiki/Bantuan:Pengenalan" aria-label="Ketahui lebih lanjut tentang menyunting"><span>Ketahui lebih lanjut</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Khas:Sumbangan_saya" title="Senarai suntingan yang dibuat daripada alamat IP ini [y]" accesskey="y"><span>Sumbangan</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Khas:Perbincangan_saya" title="Perbincangan mengenai penyuntingan daripada alamat IP anda [n]" accesskey="n"><span>Perbincangan</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Tapak"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">Lihat sumber bagi Sinar-X</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Rencana ini hanya wujud dalam bahasa ini. Tambah rencana untuk bahasa lain" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-0" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">Tambahkan bahasa</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> <div class="after-portlet after-portlet-lang"><span class="uls-after-portlet-link"></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Ruang nama"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul 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You could also send an email to the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards" class="extiw" title="m:Special:MyLanguage/Stewards">stewards</a> <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/VRT" class="extiw" title="m:Special:MyLanguage/VRT">VRT</a> queue at <kbd>stewards@wikimedia.org</kbd> including all above details.</div></div><hr /> <p>Anda boleh melihat dan menyalin sumber bagi laman ini. </p><textarea readonly="" accesskey="," id="wpTextbox1" cols="80" rows="25" style="" class="mw-editfont-monospace" lang="ms" dir="ltr" name="wpTextbox1">[[Fail:X-ray by Wilhelm Röntgen of Albert von Kölliker's hand - 18960123-02.jpg|thumb|right|Sebuah foto sinar-X (radiograf) diambil oleh Wilhelm Röntgen|link=Fail:X-ray_by_Wilhelm_R%C3%B6ntgen_of_Albert_von_K%C3%B6lliker%27s_hand_-_18960123-02.jpg]] '''Sinar-X''' atau '''X-ray''' merupakan salah satu daripada sinaran elektromagnet. Sinar-X ini mempunyai bentuk yang serupa dengan sinar cahaya biasa, inframerah dan gelombang radio; yang berbeza cuma dari segi panjang gelombangnya sahaja. Sinar-X mempunyai gelombang yang pendek berukuran 10<sup>−7</sup> hingga 10<sup>−9</sup>. == Sejarah penemuan == '''Sinar-X''' (atau X-ray) telah ditemui oleh seorang Profesor Fizik berbangsa [[Jerman]] yang bertugas di Universiti Wurzburg, Bavaria, [[Wilhelm Conrad Röntgen]] pada 8hb November, [[1895]]. Beliau mendapati sinar ini mempunyai kebolehan menakjubkan iaitu menghasilkan imej di atas [[filem fotografi]] setelah menembusi tisu, pakaian dan logam. Menerusi kajiannnya, Roentgen mendapati [[hablur]] garam [[barium platinosianida]] bersinar apabila diletakkan berdekatan dengan [[tiub sinar katod]] yang ditutup. Ia juga mendapati plat foto yang ditutup diletakan berdekatan dengan sinar katod akan menjadi hitam. Dari sini kesimpulan dapat di buat bahawa sinar-X tidak boleh dilihat, bergerak dalam garis lurus dan mempunyai daya penembusan yang tinggi, iaitu dapat menembusi objek yang legap bagi sinar cahaya biasa. Wilhelm Conrad Röntgen yang lahir pada 25 Mac [[1845]] adalah yang mula-mula menemui sinar-X. Selepas itu, Roentgen menunjukkan sinar ini datang dari dinding kaca berpendaflour cahaya apabila sinar katod terkena padanya. Untuk mengesahkan penemuan ini, beliau telah menjalankan satu eksperimen ringkas. Dalam eksperimen ini beliau meletakkan satu skrin yang di lapisi dengan barium platinosianida dalam lintasan sinar-X. skrin ini di dapati bersinar apabila terkena pada sinar-X ini. Dengan meletak tangan beliau diantara tiub sinar katod dan skrin, satu bayang tangan dengan tulang-tulang di dalamnya jelas kelihatan dalam skrin ini. Ini dapat membuktikan bahawa sinar-X yang terkeluar dari tiub sinar katod mempunyai [[kuasa penembusan]] yang tinggi. == Bidang kajian sinar-X == [[Radiografi]] diperkenalkan di [[Tanah Melayu]] pada 3 Februari [[1897]], lebih kurang setahun selepas penemuannya oleh Roentgen. Lain-lain pengambilan gambar x-ray ditunjukkan semasa perjumpaan tahunan Persatuan Fotografi Amatur di Taiping, Perak pada penghujung tahun 1897, sebuah mesin Sinar-X lengkap telah dihadiahkan kepada Hospital Ipoh sempena jubli intan Ratu Victoria. Berikutnya, sebuah lagi di [[Kuala Lumpur]] pada tahun [[1905]] dan di [[Pulau Pinang]] pada tahun [[1910]]. == Penghasilan sinar-X == Sinar-X dihasilkan apabila elektron bergerak pada kelajuan yang tinggi dan secara tiba-tiba berlaku perubahan dari segi kelajuan. Semua ini berlaku di dalam sebuah tiub x-ray. Di dalam sebuah tiub x-ray terdapat katod (-) yang merupakan sebuah filamen yang dipanaskan oleh tenaga elektrik. Pemanasan yang berlaku menyebabkan elektron dihasilkan dari filamen. Ini semua berlaku untuk persediaan elektron bagi dipecutkan untuk mendapatkan sinaran-X. Sinar-X yang dihasilkan dengan tenaga 20-40 keV mempunyai panjang gelombang 10<sup>−7</sup> cm dan sinar ini dikatakan sinar-X lembut (soft- rays). Sinar-X yang dihasilkan dengan 40-125 keV mempunyai gelombang 10<sup>−8</sup> cm. Sinar ini kerap digunakan untuk pemeriksaan x-ray diagnostik, manakala panjang gelombang yang lebih pendek lagi yang dihasilkan dengan tenaga 200-1000 keV digunakan dalam rawatan radioterapi yang lebih dalam (deep radiotheraphy). Sinar ini biasanya berukuran < 10<sup>−8</sup> cm (hard-rays). == Sifat-sifat sinar-X == Pancaran sinar-X dapat diperoleh daripada sejenis alat elektronik yang dinamakan tiub x-ray. Daripada kajian ahli sains didapati sinar-X mempunyai sifat-sifat tertentu yang dapat dibahagikan kepada sifat biasa dan sifat khas. a) Sifat biasa Sinar-X bergerak laju dan lurus. Tidak boleh difokus oleh kanta atau cermin dan tidak boleh dipesong oleh medan magnet sekitar arah tuju yang dilaluinya. Mematuhi peraturan ‘Hukum Kuasa Dua Songsang’ iaitu keamatan sinar berubah dengan kuasa dua songsang jarak daripada punca pancaran. b) Sifat khas Keupayaan menembusi jirim padat. Kesan pendarcahaya - memberikan kesan cahaya kepada sebatian kimia seperti zink sulfida, kalsium tungstat dan barium platinosiamida. Kesan fotografi - memberikan penghitaman kepada filem apabila didedah kepada sinar-X. Kesan pengionan - alur sinar-X yang lintas melalui gas memindahkan tenaganya kepada molekul-molekul yang seterusnya akan berpecah kepada zarah yang bercas positif dan negatif.Kesan biologi - sinar-X bertindak dengan kesemua tisu hidup yang terdapat dalam badan. == Jenis-jenis gelombang lain == == Contoh panjang gelombang berbagai-bagai sinaran elektromagnet adalah seperti berikut:- == * Gelombang radio 1&nbsp;cm – 3 x 10<sup>5</sup> cm * Sinar cahaya - 4 x 10<sup>−5</sup> cm – 7 x 10<sup>−5</sup> cm * Sinar ultraungu - 10<sup>−5</sup> cm – 7 x 10<sup>−5</sup> cm * Sinar-X - 10<sup>−7</sup> cm -10<sup>−9</sup> cm * Sinar gama - 10 <sup>−9</sup> cm * Sinar kosmos - < 10 <sup>−10</sup> cm [[Kategori:Radiologi]] [[Kategori:Fizik]] [[Kategori:Fizik gelombang]] [[Kategori:WPPER]] </textarea><div class="templatesUsed"></div><p id="mw-returnto">Kembali ke <a href="/wiki/Sinar-X" title="Sinar-X">Sinar-X</a>.</p> <noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Diambil daripada "<a dir="ltr" href="https://ms.wikipedia.org/wiki/Sinar-X">https://ms.wikipedia.org/wiki/Sinar-X</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Dasar privasi</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Perihal">Perihal Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Penafian_umum">Penafian</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Kod Tatakelakuan</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Pembangun</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/ms.wikipedia.org">Statistik</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Kenyataan kuki</a></li> <li id="footer-places-mobileview"><a href="//ms.m.wikipedia.org/w/index.php?title=Sinar-X&action=edit&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Paparan mudah alih</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-nt2gf","wgBackendResponseTime":207,"wgPageParseReport":{"limitreport":{"cputime":"0.005","walltime":"0.006","ppvisitednodes":{"value":17,"limit":1000000},"postexpandincludesize":{"value":710,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":2,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-nt2gf","timestamp":"20241124204249","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>