{"id":36248,"date":"2019-10-31T22:10:29","date_gmt":"2019-10-31T19:10:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord\/"},"modified":"2019-10-31T22:10:29","modified_gmt":"2019-10-31T19:10:29","slug":"mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord","title":{"rendered":"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/6df72c15b548271b03607338af4348b1.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nPrinzipom \u201eviac znamen\u00e1 mocnej\u0161ie\u201c, ktor\u00fd je n\u00e1m zn\u00e1my, sa u\u017e d\u00e1vno ust\u00e1lil v mnoh\u00fdch oblastiach \u017eivota spolo\u010dnosti, vr\u00e1tane vedy a technol\u00f3gie. V s\u00fa\u010dasnosti sa v\u0161ak \u010doraz \u010dastej\u0161ie stret\u00e1vame s praktickou realiz\u00e1ciou pr\u00edslovia \u201emal\u00fd, ale siln\u00fd\u201c. Toto sa prejavuje v po\u010d\u00edta\u010doch, ktor\u00e9 kedysi zaberali cel\u00fa miestnos\u0165, a dnes sa zmestia do detskej dlane, ako aj v ur\u00fdchlova\u010doch nabit\u00fdch \u010dast\u00edc. \u00c1no, spom\u00ednate si na ve\u013ek\u00fd hadr\u00f3nov\u00fd ur\u00fdchlova\u010d (LHC), ktor\u00e9ho impozantn\u00e9 rozmery (26 659 m na d\u013a\u017eku) s\u00fa doslova uveden\u00e9 v jeho n\u00e1zve? Pod\u013ea vedcov z DESY je to u\u017e minulos\u0165, preto\u017ee vyvinuli mini verziu ur\u00fdchlova\u010da, ktor\u00e1 svojim parametrom nezaost\u00e1va za svoj\u00edm plnoform\u00e1tov\u00fdm predchodcom. Navy\u0161e, mini ur\u00fdchlova\u010d dokonca stanovil nov\u00fd svetov\u00fd rekord medzi terahertzov\u00fdmi ur\u00fdchlova\u010dmi, ke\u010f zdvojn\u00e1sobil energiu vlo\u017een\u00fdch elektronov. Ako bol vyvinut\u00fd mini ur\u00fdchlova\u010d, ak\u00e9 s\u00fa jeho z\u00e1kladn\u00e9 princ\u00edpy fungovania a \u010do uk\u00e1zali praktick\u00e9 experimenty? Na to n\u00e1m pom\u00f4\u017ee odpoveda\u0165 spr\u00e1va v\u00fdskumnej skupiny. Po\u010fme na to.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>Z\u00e1klad v\u00fdskumu<\/h3>\n<p>\nPod\u013ea slov Dongfanga Zhanga a jeho kolegov z DESY (Nemeck\u00fd elektronov\u00fd synchrotr\u00f3n), ktor\u00ed vyvinuli mini ur\u00fdchlova\u010d, hraj\u00fa ultra r\u00fdchle zdroje elektronov nesmierne d\u00f4le\u017eit\u00fa \u00falohu v \u017eivote s\u00fa\u010dasnej spolo\u010dnosti. Mnoh\u00e9 z nich nach\u00e1dzaj\u00fa uplatnenie v medic\u00edne, v\u00fdvoji elektroniky a vo vedeck\u00fdch v\u00fdskumoch. Najv\u00e4\u010d\u0161\u00edm probl\u00e9mom s\u00fa\u010dasn\u00fdch line\u00e1rnych ur\u00fdchlova\u010dov, ktor\u00e9 pou\u017e\u00edvaj\u00fa r\u00e1diov\u00e9 frekven\u010dn\u00e9 gener\u00e1tory, je ich vysok\u00e1 cena, zlo\u017eit\u00e1 infra\u0161trukt\u00fara a zna\u010dn\u00e1 spotreba energie. Tieto nedostatky v\u00fdrazne obmedzuj\u00fa dostupnos\u0165 podobn\u00fdch technol\u00f3gi\u00ed pre \u0161ir\u0161\u00ed okruh pou\u017e\u00edvate\u013eov. <\/p>\n<p>Tieto o\u010dividn\u00e9 probl\u00e9my s\u00fa vynikaj\u00face podnety na v\u00fdvoj zariaden\u00ed, ktor\u00fdch ve\u013ekosti nebud\u00fa vzbudzova\u0165 hr\u00f4zu, rovnako ako ich spotreba energie.<\/p>\n<p>Medzi relat\u00edvne novinkami v tejto oblasti m\u00f4\u017eeme vyzdvihn\u00fa\u0165 terahertzov\u00e9 ur\u00fdchlova\u010de, ktor\u00e9 maj\u00fa nieko\u013eko \u201ev\u00fdhod\u201c:<\/p>\n<ul>\n<li>o\u010dak\u00e1va sa, \u017ee kr\u00e1tke vlny a kr\u00e1tke impulzy terahertzov\u00e9ho \u017eiarenia umo\u017enia v\u00fdrazne zv\u00fd\u0161i\u0165 prah <i>prerazenia*<\/i>, sp\u00f4soben\u00e9ho po\u013eom, \u010do umo\u017en\u00ed zv\u00fd\u0161i\u0165 gradienty akceler\u00e1cie;<\/li>\n<\/ul>\n<blockquote><p><b>Elektrick\u00e9 prerazen\u00e9*<\/b> \u2014 n\u00e1hly n\u00e1rast pr\u00fadu pri aplik\u00e1cii nap\u00e4tia nad kritick\u00fa hodnotu.<\/p><\/blockquote>\n<ul>\n<li>pr\u00edtomnos\u0165 efekt\u00edvnych met\u00f3d generovania vysokofrekven\u010dn\u00e9ho terahertzov\u00e9ho \u017eiarenia umo\u017e\u0148uje vykon\u00e1va\u0165 vn\u00fatorn\u00fa synchroniz\u00e1ciu medzi elektr\u00f3nmi a po\u013eami excit\u00e1cie;<\/li>\n<li>na vytvorenie tak\u00fdchto zariaden\u00ed m\u00f4\u017eu by\u0165 pou\u017eit\u00e9 klasick\u00e9 met\u00f3dy, av\u0161ak ich n\u00e1klady, \u010das v\u00fdroby a rozmery sa zna\u010dne zmen\u0161ia. <\/li>\n<\/ul>\n<p>Vedci sa domnievaj\u00fa, \u017ee ich terahertzov\u00fd ur\u00fdch\u013eova\u010d v milimetrov\u00fdch rozmeroch predstavuje kompromis medzi s\u00fa\u010dasn\u00fdmi be\u017en\u00fdmi ur\u00fdch\u013eova\u010dmi a mikro-ur\u00fdch\u013eova\u010dmi, ktor\u00e9 sa vyv\u00edjaj\u00fa, ale maj\u00fa mno\u017estvo nev\u00fdhod z d\u00f4vodu svojich ve\u013emi mal\u00fdch rozmerov.<\/p>\n<p>V\u00fdskumn\u00edci nepopieraj\u00fa, \u017ee technol\u00f3gia terahertzov\u00e9ho ur\u00fdchlenia je u\u017e nejak\u00fd \u010das vo v\u00fdvoji. Av\u0161ak pod\u013ea ich n\u00e1zoru existuje v tejto oblasti e\u0161te mno\u017estvo aspektov, ktor\u00e9 neboli presk\u00faman\u00e9, overen\u00e9 alebo realizovan\u00e9. <\/p>\n<p>Vo svojej pr\u00e1ci, ktor\u00fa dnes presk\u00famavame, vedci demon\u0161truj\u00fa mo\u017enosti STEAM (<i>segmented terahertz electron accelerator and manipulator<\/i>) \u2014 segmentovan\u00e9ho terahertzov\u00e9ho elektronov\u00e9ho ur\u00fdch\u013eova\u010da a manipul\u00e1tora. STEAM umo\u017e\u0148uje zn\u00ed\u017ei\u0165 d\u013a\u017eku zv\u00e4zku elektr\u00f3nov na subpikosekundov\u00fa d\u013a\u017eku, \u010d\u00edm poskytuje femtosekundov\u00fa kontrolu nad f\u00e1zou ur\u00fdchlenia.<\/p>\n<p>Podarilo sa dosiahnu\u0165 pole ur\u00fdchlenia 200 MV\/m (MV \u2014 megavolt), \u010do vedie k rekordn\u00e9mu terahertzov\u00e9mu ur\u00fdchleniu nad 70 keV (kiloelectronvoltov) od zaveden\u00e9ho zv\u00e4zku elektr\u00f3nov s energiou 55 keV. T\u00fdmto boli z\u00edskan\u00e9 ur\u00fdchlen\u00e9 elektr\u00f3ny do 125 keV.<\/p>\n<h3>\u0160trukt\u00fara zariadenia a jeho realiz\u00e1cia<\/h3>\n<p>\n<img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/581d753c9734024561fa600f132a7e8d.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 1: sch\u00e9ma sk\u00faman\u00e9ho zariadenia.<\/i><\/p>\n<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/d404ba9fe59504ac46e730aefbbf2134.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 1-2: a \u2014 sch\u00e9ma vyvinutej 5-vrstvovej segmentovanej \u0161trukt\u00fary, b \u2014 pomer vypo\u010d\u00edtan\u00e9ho ur\u00fdchlenia a smeru \u0161\u00edrenia elektr\u00f3nov.<\/i><\/p>\n<p>Zv\u00e4zky elektr\u00f3nov (55 keV) sa generuj\u00fa z <i>elektr\u00f3novej pu\u0161ky*<\/i> a zav\u00e1dzaj\u00fa sa do terahertzov\u00e9ho STEAM-bunchera (kompresor zv\u00e4zku), po ktorom prech\u00e1dzaj\u00fa do STEAM-linacu (<i>line\u00e1rny ur\u00fdch\u013eova\u010d*<\/i>).<\/p>\n<blockquote><p><b>Elektr\u00f3nov\u00e1 pu\u0161ka*<\/b> \u2014 zariadenie na generovanie zv\u00e4zku elektr\u00f3nov po\u017eadovanej konfigur\u00e1cie a energie.<\/p><\/blockquote>\n<blockquote><p><b>Line\u00e1rny ur\u00fdch\u013eova\u010d*<\/b> \u2014 ur\u00fdch\u013eova\u010d, v ktorom nabit\u00e9 \u010dastice prech\u00e1dzaj\u00fa \u0161trukt\u00farou len raz, \u010do odli\u0161uje line\u00e1rny ur\u00fdch\u013eova\u010d od cyklick\u00e9ho (napr\u00edklad LHC). <\/p><\/blockquote>\n<p>Obe zariadenia STEAM prij\u00edmaj\u00fa terahertzov\u00e9 impulzy z jedn\u00e9ho lasera bl\u00edzkeho infra\u010derven\u00e9ho svetla (NIR), ktor\u00fd tie\u017e aktivuje fotokat\u00f3du elektronickej pu\u0161ky, \u010do vedie k vn\u00fatornej synchroniz\u00e1cii medzi elektr\u00f3nmi a ur\u00fdch\u013eovac\u00edmi po\u013eami. Ultrafialov\u00e9 impulzy pre fotoemisciu na fotokat\u00f3de sa generuj\u00fa cez dve po sebe id\u00face f\u00e1zy. <i>GHV*<\/i> z\u00e1kladnej vlnovej d\u013a\u017eky bl\u00edzkeho infra\u010derven\u00e9ho svetla. Tento proces premie\u0148a laserov\u00fd impulz s vlnovou d\u013a\u017ekou 1020 nm najprv na 510 nm a n\u00e1sledne na 255 nm.<\/p>\n<blockquote><p><b>GHV*<\/b> (gener\u00e1cia druhej optickej harmoniky) \u2014 proces sp\u00e1jania fot\u00f3nov s rovnakou frekvenciou po\u010das interakcie s neline\u00e1rnym materi\u00e1lom, \u010do vedie k vytvoreniu nov\u00fdch fot\u00f3nov s dvojn\u00e1sobnou energiou a frekvenciou, ako aj s dvojn\u00e1sobne krat\u0161ou vlnovou d\u013a\u017ekou.<\/p><\/blockquote>\n<p>Zvy\u0161n\u00e1 \u010das\u0165 l\u00fa\u010da NIR-laseru sa rozde\u013euje na 4 l\u00fa\u010de, ktor\u00e9 sa pou\u017e\u00edvaj\u00fa na generovanie \u0161tyroch jednocyklov\u00fdch terahertzov\u00fdch impulzov prostredn\u00edctvom generovania rozdielov\u00fdch vn\u00fatorn\u00fdch impulzn\u00fdch frekvenci\u00ed.<\/p>\n<p>Dva terahertzov\u00e9 impulzy sa potom dost\u00e1vaj\u00fa do ka\u017ed\u00e9ho zariadenia STEAM cez symetrick\u00e9 rohov\u00e9 \u0161trukt\u00fary, ktor\u00e9 usmer\u0148uj\u00fa terahertzov\u00fa energiu do interak\u010dnej oblasti naprie\u010d smeru \u0161\u00edrenia elektr\u00f3nov.<\/p>\n<p>Ke\u010f elektr\u00f3ny vstupuj\u00fa do ka\u017ed\u00e9ho zariadenia STEAM, podrobuj\u00fa sa vplyvu elektrick\u00fdch a magnetick\u00fdch zlo\u017eiek <i>Lorentzovej sily*<\/i>.<\/p>\n<blockquote><p><b>Lorentzova sila*<\/b> \u2014 sila, ktorou elektromagnetick\u00e9 pole p\u00f4sob\u00ed na nabit\u00fa \u010dasticu.<\/p><\/blockquote>\n<p>V tomto pr\u00edpade elektrick\u00e9 pole zodpoved\u00e1 za ur\u00fdchlenie a spomalenie, zatia\u013e \u010do magnetick\u00e9 pole sp\u00f4sobuje prie\u010dne odch\u00fdlenia.<\/p>\n<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/6e56629be1c0de410ab1411baaceff14.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 2<\/i><\/p>\n<p>Ako vid\u00edme na obr\u00e1zkoch <b>2a<\/b> a <b>2b<\/b>, vn\u00fatri ka\u017ed\u00e9ho zariadenia STEAM s\u00fa terahertzov\u00e9 l\u00fa\u010de rozdelen\u00e9 naprie\u010d tenk\u00fdmi kovov\u00fdmi listami v nieko\u013ek\u00fdch vrstv\u00e1ch r\u00f4znej hr\u00fabky, pri\u010dom ka\u017ed\u00e1 z nich p\u00f4sob\u00ed ako waveguide, pren\u00e1\u0161aj\u00faca \u010das\u0165 celkovej energie do interak\u010dnej oblasti. Na ka\u017edej vrstve s\u00fa tie\u017e pr\u00edtomn\u00e9 dielektrick\u00e9 dosky, aby sa zladil \u010das pr\u00edchodu terahertzov\u00e9ho <i>vlnov\u00e9ho frontu*<\/i> s frontom elektr\u00f3nov.<\/p>\n<blockquote><p><b>Vlnov\u00fd front*<\/b> \u2014 povrch, do ktor\u00e9ho sa vlna dostala.<\/p><\/blockquote>\n<p>Obe zariadenia STEAM funguj\u00fa v elektrickom re\u017eime, teda sp\u00f4sobom, ktor\u00fd zabezpe\u010duje prekr\u00fdvanie elektrick\u00e9ho po\u013ea a potl\u00e1\u010danie magnetick\u00e9ho po\u013ea v strede interak\u010dnej oblasti.<\/p>\n<p>V prvom zariaden\u00ed s\u00fa elektr\u00f3ny napl\u00e1novan\u00e9 tak, aby prech\u00e1dzali cez <i>priese\u010dn\u00edk nuly*<\/i> terahertzov\u00e9ho po\u013ea, kde s\u00fa \u010dasov\u00e9 gradienty elektrick\u00e9ho po\u013ea maximalizovan\u00e9 a priemern\u00e9 pole minimalizovan\u00e9.<\/p>\n<blockquote><p><b>Priese\u010dn\u00edk nuly*<\/b> \u2014 bod, kde nie je \u017eiadne nap\u00e4tie.<\/p><\/blockquote>\n<p>Tak\u00e1to konfigur\u00e1cia sp\u00f4sobuje ur\u00fdchlenie chvosta elektr\u00f3nov\u00e9ho zv\u00e4zku a spomalenie jeho hlavy, \u010do vedie k balistick\u00e9mu pozd\u013a\u017enemu zaostreniu (<b>2a<\/b> a <b>2s<\/b>).<\/p>\n<p>V druhom zariaden\u00ed sa synchroniz\u00e1cia elektr\u00f3nu a terahertzov\u00e9ho \u017eiarenia nastavuje tak, \u017ee elektr\u00f3nov\u00fd zv\u00e4zok za\u017e\u00edva iba negat\u00edvny cyklus terahertzov\u00e9ho elektrick\u00e9ho po\u013ea. Tak\u00e1to konfigur\u00e1cia vedie k \u010dist\u00e9mu nepretr\u017eit\u00e9mu ur\u00fdchleniu (<b>2b<\/b> a <b>2d<\/b>).<\/p>\n<p>Laser s NIR \u017eiaren\u00edm pripom\u00edna kryogenicky chladen\u00fd Yb:YLF syst\u00e9m, ktor\u00fd produkuje optick\u00e9 impulzy s trvan\u00edm 1.2 ps a energiou 50 mJ pri vlnovej d\u013a\u017eke 1020 nm a frekvencii opakovania 10 Hz. Terahertzov\u00e9 impulzy s centr\u00e1lnou frekvenciou 0.29 terahertz (obdobie 3.44 ps) sa generuj\u00fa met\u00f3dou \u0161ikm\u00e9ho frontu impulzu.<\/p>\n<p>Na nap\u00e1janie STEAM-bunchera (kompresor zv\u00e4zku) sa pou\u017eilo iba 2 x 50 nJ terahertzovej energie, zatia\u013e \u010do pre STEAM-linac (line\u00e1rny ur\u00fdch\u013eova\u010d) bolo potrebn\u00e9 2 x 15 mJ.<\/p>\n<p>Priemer vstupn\u00fdch a v\u00fdstupn\u00fdch otvorov oboch zariaden\u00ed STEAM je 120 \u03bcm.<\/p>\n<p>Kompresor zv\u00e4zku je navrhnut\u00fd s tromi vrstvami rovnakej v\u00fd\u0161ky (0.225 mm), ktor\u00e9 s\u00fa vybaven\u00e9 plat\u0148ami z taven\u00e9ho krem\u00edka (\u03f5r =4.41) s d\u013a\u017ekami 0.42 a 0.84 mm na kontrolu \u010dasovej synchroniz\u00e1cie. Rovnak\u00e9 v\u00fd\u0161ky vrstiev kompresora odr\u00e1\u017eaj\u00fa skuto\u010dnos\u0165, \u017ee ur\u00fdchlenie sa nevyskytuje (<b>2s<\/b>).<\/p>\n<p>V line\u00e1rnom ur\u00fdch\u013eova\u010di v\u0161ak v\u00fd\u0161ky u\u017e odli\u0161uj\u00fa \u2014 0.225, 0.225 a 0.250 mm (+ platne z taven\u00e9ho krem\u00edka 0.42 a 0.84 mm). Zv\u00e4\u010d\u0161enie v\u00fd\u0161ky vrstvy vysvet\u013euje zv\u00fd\u0161enie r\u00fdchlosti elektr\u00f3nov pri ur\u00fdchlen\u00ed.<\/p>\n<p>Vedci poznamen\u00e1vaj\u00fa, \u017ee po\u010det vrstiev priamo s\u00favis\u00ed s funkciou ka\u017ed\u00e9ho z dvoch zariaden\u00ed. Na dosiahnutie vy\u0161\u0161ej miery ur\u00fdchlenia, napr\u00edklad, bude potrebn\u00e9 viac vrstiev a in\u00e1 konfigur\u00e1cia v\u00fd\u0161ok na optimaliz\u00e1ciu interakcie.<\/p>\n<h3>V\u00fdsledky praktick\u00fdch experimentov<\/h3>\n<p>\nPredov\u0161etk\u00fdm vedci pripom\u00ednaj\u00fa, \u017ee v tradi\u010dn\u00fdch akceler\u00e1toroch na b\u00e1ze r\u00e1diov\u00fdch frekvenci\u00ed je vplyv \u010dasovej d\u013a\u017eky zaveden\u00e9ho elektr\u00f3nov\u00e9ho l\u00fa\u010da na vlastnosti akcelerovan\u00e9ho l\u00fa\u010da spojen\u00fd so zmenou elektrick\u00e9ho po\u013ea, ktor\u00e9mu podliehaj\u00fa r\u00f4zne elektr\u00f3ny vn\u00fatri l\u00fa\u010da a prich\u00e1dzaj\u00face v r\u00f4znom \u010dase. Preto m\u00f4\u017eeme predpoklada\u0165, \u017ee polia s v\u00e4\u010d\u0161\u00edm gradientom a l\u00fa\u010de s dlh\u0161ou trvan\u00edm poved\u00fa k v\u00e4\u010d\u0161iemu rozptylu energi\u00ed. Zaveden\u00e9 l\u00fa\u010de ve\u013ekej d\u013a\u017eky m\u00f4\u017eu tie\u017e prin\u00e1\u0161a\u0165 vy\u0161\u0161ie hodnoty <i>emitanci*<\/i>.<\/p>\n<blockquote><p><b>Emitancia*<\/b> \u2014 f\u00e1zov\u00fd priestor, ktor\u00fd zauj\u00edma akcelerovan\u00fd l\u00fa\u010d nabit\u00fdch \u010dast\u00edc.<\/p><\/blockquote>\n<p>V pr\u00edpade terahertzov\u00e9ho akceler\u00e1tora je peri\u00f3da excit\u00e1cie po\u013ea pribli\u017ene 200-kr\u00e1t krat\u0161ia. Preto <i>intenzita*<\/i> udr\u017eiavan\u00e9ho po\u013ea bude 10-kr\u00e1t vy\u0161\u0161ia. <\/p>\n<blockquote><p><b>Intenzita elektrick\u00e9ho po\u013ea* <\/b> \u2014 ukazovate\u013e elektrick\u00e9ho po\u013ea, rovn\u00fd pomeru sily aplikovanej na nehybn\u00fd bodov\u00fd n\u00e1boj umiestnen\u00fd v danom bode po\u013ea k ve\u013ekosti tohto n\u00e1boja. <\/p><\/blockquote>\n<p>T\u00fdmto sp\u00f4sobom maj\u00fa v terahertzovom akceler\u00e1tore gradienty po\u013ea, ktor\u00e9 elektr\u00f3ny poci\u0165uj\u00fa, m\u00f4\u017eu by\u0165 nieko\u013eko r\u00e1dov vy\u0161\u0161ie ako v be\u017enom zariaden\u00ed. \u010casov\u00fd r\u00e1mec, v ktorom je zakrivenie po\u013ea zjavn\u00e9, bude pritom v\u00fdrazne men\u0161\u00ed. Z toho vypl\u00fdva, \u017ee d\u013a\u017eka zaveden\u00e9ho elektronov\u00e9ho l\u00fa\u010da bude ma\u0165 viac v\u00fdrazn\u00fd vplyv.<\/p>\n<p>Vedci sa rozhodli prakticky overi\u0165 \u00fadaje tejto te\u00f3rie. Na tento \u00fa\u010del zav\u00e1dzali l\u00fa\u010de elektronov r\u00f4znej d\u013a\u017eky, ktor\u00e1 bola kontrolovan\u00e1 stla\u010den\u00edm pomocou prv\u00e9ho STEAM zariadenia (STEAM-buncher).<\/p>\n<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/1d15ed2cec289b62df3d7a8a1fc2962c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 3<\/i><\/p>\n<p>V pr\u00edpade, ke\u010f kompresor nebol pripojen\u00fd k zdroju nap\u00e1jania, l\u00fa\u010de elektronov (55 keV) s n\u00e1bojom \u223c1 fC (femtokoulomb) prech\u00e1dzali pribli\u017ene 300 mm od elektronovej pi\u0161tole k zariadeniu line\u00e1rneho ur\u00fdch\u013eova\u010da (STEAM-linac). Tieto elektr\u00f3ny sa mohli roz\u0161\u00edri\u0165 pod vplyvom s\u00edl priestorov\u00e9ho n\u00e1boja a\u017e do d\u013a\u017eky viac ako 1000 fs (femtosek\u00fand).<\/p>\n<p>Pri takej d\u013a\u017eke elektronov\u00fd l\u00fa\u010d zaber\u00e1 pribli\u017ene 60 % polvlny akceleruj\u00faceho po\u013ea s frekvenciou 1,7 ps, \u010do vedie k energetick\u00e9mu spektru po akceler\u00e1cii s vrcholom na 115 keV a polovi\u010dnou \u0161\u00edrkou rozdelenia energie cez 60 keV (<b>3a<\/b>).<\/p>\n<p>Na porovnanie t\u00fdchto v\u00fdsledkov s o\u010dak\u00e1van\u00fdmi bola simuluje situ\u00e1cia \u0161\u00edrenia elektronov cez line\u00e1rny ur\u00fdch\u013eova\u010d, ke\u010f s\u00fa elektr\u00f3ny nesynchronizovan\u00e9 (t.j. nezodpovedaj\u00fa) vo vz\u0165ahu k optim\u00e1lnemu \u010dasu zavedenia. V\u00fdpo\u010dty takejto situ\u00e1cie uk\u00e1zali, \u017ee pr\u00edrastok energie elektr\u00f3nov ve\u013emi z\u00e1vis\u00ed od \u010dasu zavedenia a\u017e po subpikosekundov\u00fd \u010dasov\u00fd r\u00e1mec (<b>3b<\/b>). To znamen\u00e1, \u017ee pri optim\u00e1lnom nastaven\u00ed elektr\u00f3n postihne pln\u00fd poloperi\u00f3da ur\u00fdchlenia terahertzov\u00e9ho \u017eiarenia v ka\u017edom vrstve (<b>3s<\/b>).<\/p>\n<p>Ak v\u0161ak elektr\u00f3ny prich\u00e1dzaj\u00fa v r\u00f4znych \u010dasoch, za\u017e\u00edvaj\u00fa men\u0161ie ur\u00fdchlenie v prvej vrstve, \u010do si vy\u017eaduje viac \u010dasu na jej prechod. Potom sa nesynchroniz\u00e1cia zosil\u0148uje v nasleduj\u00facich vrstv\u00e1ch, \u010do vedie k ne\u017eelan\u00e9mu spomaleniu (<b>3d<\/b>). <\/p>\n<p>Aby sa \u010do najviac zn\u00ed\u017eil negat\u00edvny efekt \u010dasovej roz\u0161\u00edrenosti elektr\u00f3nov\u00e9ho l\u00fa\u010da, prv\u00e9 zariadenie STEAM pracovalo v re\u017eime kompresie. D\u013a\u017eka elektr\u00f3nov\u00e9ho l\u00fa\u010da na line\u00e1rnom ur\u00fdch\u013eova\u010di bola optimalizovan\u00e1 na minimum ~ 350 fs (polovi\u010dn\u00e1 \u0161\u00edrka) nastaven\u00edm terahertzovej energie dod\u00e1vanej do kompresora a prep\u00ednan\u00edm line\u00e1rneho ur\u00fdch\u013eova\u010da do re\u017eimu \u0161krtania (<b>4b<\/b>).<\/p>\n<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/f4c887b0cd58549da2bdc3a25ebab294.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 4<\/i><\/p>\n<p>Minim\u00e1lna d\u013a\u017eka l\u00fa\u010da bola stanoven\u00e1 v s\u00falade s d\u013a\u017ekou UV impulzu fotokatalyz\u00e1tora, ktor\u00e9ho d\u013a\u017eka bola ~ 600 fs. D\u00f4le\u017eit\u00fa \u00falohu zohralo aj vzdialenos\u0165 medzi kompresorom a p\u00e1som, \u010do obmedzovalo silu zhustenia pod\u013ea r\u00fdchlosti. V s\u00fahrne tieto opatrenia umo\u017e\u0148uj\u00fa dosiahnu\u0165 femtosekundov\u00fa presnos\u0165 f\u00e1zy zavedenia po\u010das f\u00e1zy ur\u00fdchlenia.<\/p>\n<p>Na obr\u00e1zku <b>4a<\/b> je vidno, \u017ee rozptyl energie zhu\u0161\u0165ovan\u00e9ho elektr\u00f3nov\u00e9ho l\u00fa\u010da po optimalizovanom ur\u00fdchlen\u00ed v line\u00e1rnom ur\u00fdch\u013eova\u010di sa zmen\u0161uje pribli\u017ene 4-kr\u00e1t v porovnan\u00ed s nezhu\u0161\u0165ovan\u00fdm. V\u010faka ur\u00fdchleniu sa energetick\u00e9 spektrum zhu\u0161\u0165ovan\u00e9ho l\u00fa\u010da pos\u00fava smerom k vy\u0161\u0161\u00edm energi\u00e1m, na rozdiel od nezhu\u0161\u0165ovan\u00e9ho l\u00fa\u010da. Vrchol energetick\u00e9ho spektra po ur\u00fdchlen\u00ed dosahuje pribli\u017ene 115 keV, a vysokoenergetick\u00fd chvost dosahuje pribli\u017ene 125 keV.<\/p>\n<p>Tieto ukazovatele, pod\u013ea skromn\u00e9ho vyhl\u00e1senia vedcov, s\u00fa nov\u00fdm rekordom ur\u00fdchlenia (pred ur\u00fdchlen\u00edm bolo 70 keV) v terahertzovom rozsahu.<\/p>\n<p>Ale aby sa zn\u00ed\u017eil rozptyl energie (<i>4a<\/i>), je potrebn\u00e9 dosiahnu\u0165 e\u0161te krat\u0161\u00ed l\u00fa\u010d. <\/p>\n<p><img decoding=\"async\" alt=\"Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord\" src=\"\/wp-content\/uploads\/2019\/07\/7c53a1ca68dfbe52518d1dcd813ad6c9.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Obr\u00e1zok \u010d. 5<\/i><\/p>\n<p>V pr\u00edpade nespracovan\u00e9ho zadan\u00e9ho zv\u00e4zku parabolick\u00e1 z\u00e1vislos\u0165 ve\u013ekosti zv\u00e4zku od pr\u00fadu ukazuje prie\u010dny emittance v horizont\u00e1lnych a vertik\u00e1lnych smeroch: \u03b5x,n = 1.703 mm*mrad a \u03b5y,n = 1.491 mm*mrad (<b>5a<\/b>).<\/p>\n<p>Kompresia v\u0161ak zlep\u0161ila prie\u010dny emittance 6-kr\u00e1t na \u03b5x,n = 0,285 mm*mrad (horizont\u00e1lny) a \u03b5y,n = 0,246 mm*mrad (vertik\u00e1lny).<\/p>\n<p>Je d\u00f4le\u017eit\u00e9 poznamena\u0165, \u017ee miera zn\u00ed\u017eenia emittancie je pribli\u017ene dvakr\u00e1t v\u00e4\u010d\u0161ia ne\u017e miera skr\u00e1tenia trvania zv\u00e4zku, \u010do je mierou nelinearity dynamiky interakcie s \u010dasom, ke\u010f elektr\u00f3ny za\u017e\u00edvaj\u00fa siln\u00e9 zaostrenie a rozostrenie magnetick\u00e9ho po\u013ea po\u010das ur\u00fdch\u013eovania (<b>5b<\/b> a <b>5c<\/b>).<\/p>\n<p>Na obr\u00e1zku <b>5b<\/b> je vidie\u0165, \u017ee elektr\u00f3ny zadan\u00e9 v optim\u00e1lnom \u010dase za\u017e\u00edvaj\u00fa cel\u00fd poloperi\u00f3du ur\u00fdch\u013eovania elektrick\u00e9ho po\u013ea. Na druhej strane elektr\u00f3ny, ktor\u00e9 prich\u00e1dzaj\u00fa pred alebo po optim\u00e1lnom okamihu, za\u017e\u00edvaj\u00fa men\u0161ie ur\u00fdchlenie a dokonca \u010diasto\u010dn\u00e9 spomalenie. T\u00edto elektr\u00f3ny preto z\u00edskavaj\u00fa menej energie, zjednodu\u0161ene povedan\u00e9.<\/p>\n<p>Podobn\u00e1 situ\u00e1cia sa pozoruje aj pri p\u00f4soben\u00ed magnetick\u00e9ho po\u013ea. Elektr\u00f3ny zadan\u00e9 v optim\u00e1lnom \u010dase za\u017e\u00edvaj\u00fa symetrick\u00e9 mno\u017estvo pozit\u00edvnych a negat\u00edvnych magnetick\u00fdch pol\u00ed. Ak v\u0161ak bol vstup elektr\u00f3nov uskuto\u010dnen\u00fd sk\u00f4r, ako by bol optim\u00e1lny \u010das, bolo viac pozit\u00edvnych pol\u00ed a menej negat\u00edvnych. V pr\u00edpade oneskoren\u00e9ho zavedenia elektr\u00f3nov po optim\u00e1lnom \u010dase \u2014 menej pozit\u00edvnych a viac negat\u00edvnych (<b>5c<\/b>). A tak\u00e9to odch\u00fdlky ved\u00fa k tomu, \u017ee elektron sa m\u00f4\u017ee odch\u00fdli\u0165 do\u013eava, doprava, nahor alebo nadol v z\u00e1vislosti od jeho polohy vo\u010di osi, \u010do vedie k zv\u00fd\u0161eniu prie\u010dneho impulzu, ktor\u00fd zodpoved\u00e1 zaostreniu alebo rozostreniu l\u00fa\u010da.<\/p>\n<p>Pre podrobnej\u0161ie obozn\u00e1menie s nuansami v\u00fdskumu odpor\u00fa\u010dam pozrie\u0165 sa do <noindex><a rel=\"nofollow\" href=\"https:\/\/www.osapublishing.org\/optica\/fulltext.cfm?uri=optica-6-7-872&amp;id=415315\">spr\u00e1vy vedcov<\/a><\/noindex> a <noindex><a rel=\"nofollow\" href=\"https:\/\/osapublishing.figshare.com\/articles\/3990773_pdf\/8231024\">\u010fal\u0161ie materi\u00e1ly<\/a><\/noindex> k nej.<\/p>\n<h3>Epilog<\/h3>\n<p>\nS\u00fahrnne, v\u00fdkon ur\u00fdch\u013eova\u010da bude narasta\u0165 v pr\u00edpade zn\u00ed\u017eenia trvania zv\u00e4zku elektr\u00f3nov. V tejto pr\u00e1ci bola dosiahnute\u013en\u00e1 d\u013a\u017eka zv\u00e4zku obmedzen\u00e1 geometriou zariadenia. Ale teoreticky m\u00f4\u017ee d\u013a\u017eka zv\u00e4zku dosiahnu\u0165 menej ako 100 fs. <\/p>\n<p>Taktie\u017e vedci uv\u00e1dzaj\u00fa, \u017ee kvalitu zv\u00e4zku je mo\u017en\u00e9 v bud\u00facnosti zlep\u0161i\u0165 zn\u00ed\u017een\u00edm v\u00fd\u0161ky vrstiev a zv\u00fd\u0161en\u00edm ich po\u010dtu. Tento met\u00f3da v\u0161ak nie je bez probl\u00e9mov, najm\u00e4 zv\u00fd\u0161en\u00edm zlo\u017eitosti v\u00fdroby zariadenia.<\/p>\n<p>T\u00e1to pr\u00e1ca je \u00favodn\u00fdm krokom k rozsiahlej\u0161iemu a podrobnej\u0161iemu sk\u00famaniu miniat\u00farnej verzie line\u00e1rneho ur\u00fdch\u013eova\u010da. Hoci sk\u00fa\u0161an\u00e1 verzia u\u017e dosahuje vynikaj\u00face v\u00fdsledky, ktor\u00e9 mo\u017eno opr\u00e1vnene nazva\u0165 rekordn\u00fdmi, pred nami je e\u0161te ve\u013ea pr\u00e1ce. <\/p>\n<p>\u010eakujem za pozornos\u0165, ost\u00e1vajte zvedav\u00ed a prajem v\u0161etk\u00fdm dobr\u00fd pracovn\u00fd t\u00fd\u017ede\u0148, kamar\u00e1ti! \ud83d\ude42<\/p>\n<p>\u010eakujeme, \u017ee s nami zost\u00e1vate. P\u00e1\u010dia sa v\u00e1m na\u0161e \u010dl\u00e1nky? Chcete vidie\u0165 viac zauj\u00edmav\u00fdch materi\u00e1lov? Podporte n\u00e1s objednan\u00edm alebo odpor\u00fa\u010dan\u00edm priate\u013eom, <b>30% z\u013eava pre pou\u017e\u00edvate\u013eov Chabra na unik\u00e1tny ekvivalent entry-level serverov, ktor\u00fd sme pre v\u00e1s vytvorili:<\/b> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/company\/ua-hosting\/blog\/347386\/\">V\u0161etky pravdy o VPS (KVM) E5-2650 v4 (6 jadier) 10GB DDR4 240GB SSD 1Gbps od 20 dol\u00e1rov alebo ako spr\u00e1vne rozdeli\u0165 server?<\/a><\/noindex> (k dispoz\u00edcii varianty s RAID1 a RAID10, a\u017e 24 jadier a a\u017e 40GB DDR4).<\/p>\n<p><b>Dell R730xd za polovicu?<\/b> Len u n\u00e1s <b><noindex><a rel=\"nofollow\" href=\"https:\/\/ua-hosting.company\/serversnl\">2 x Intel TetraDeca-Core Xeon 2x E5-2697v3 2.6GHz 14C 64GB DDR4 4x960GB SSD 1Gbps 100 TB od 199 dol\u00e1rov<\/a><\/noindex> v Holandsku! <b>Dell R420 \u2014 2x E5-2430 2.2Ghz 6C 128GB DDR3 2x960GB SSD 1Gbps 100TB \u2014 od 99 dol\u00e1rov!<\/b><\/b> Pre\u010d\u00edtajte si o tom <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/company\/ua-hosting\/blog\/329618\/\">Ako vybudova\u0165 infra\u0161trukt\u00faru korpor\u00e1tneho typu s pou\u017eit\u00edm serverov Dell R730xd E5-2650 v4 s cenou 9000 eur za zlomok ceny?<\/a><\/noindex><br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ua-hosting\/blog\/460195\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0438\u0432\u044b\u0447\u043d\u044b\u0439 \u043d\u0430\u043c \u043f\u0440\u0438\u043d\u0446\u0438\u043f \u00ab\u0431\u043e\u043b\u044c\u0448\u0435 \u0437\u043d\u0430\u0447\u0438\u0442 \u043c\u043e\u0449\u043d\u0435\u0435\u00bb \u0443\u0436\u0435 \u0434\u0430\u0432\u043d\u043e \u0443\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432 \u043c\u043d\u043e\u0433\u0438\u0445 \u043e\u0442\u0440\u0430\u0441\u043b\u044f\u0445 \u0436\u0438\u0437\u043d\u0438 \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0430, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0432 \u043d\u0430\u0443\u043a\u0435 \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044f\u0445. \u041e\u0434\u043d\u0430\u043a\u043e \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0440\u0435\u0430\u043b\u0438\u044f\u0445 \u0432\u0441\u0435 \u0447\u0430\u0449\u0435 \u0438 \u0447\u0430\u0449\u0435 \u0432\u0441\u0442\u0440\u0435\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u043e\u0433\u043e\u0432\u043e\u0440\u043a\u0438 \u00ab\u043c\u0430\u043b, \u0434\u0430 \u0443\u0434\u0430\u043b\u00bb. \u042d\u0442\u043e \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0432 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0440\u0430\u043d\u0435\u0435 \u0437\u0430\u043d\u0438\u043c\u0430\u043b\u0438 \u0446\u0435\u043b\u0443\u044e \u043a\u043e\u043c\u043d\u0430\u0442\u0443, \u0430 \u0441\u0435\u0439\u0447\u0430\u0441 \u043f\u043e\u043c\u0435\u0449\u0430\u044e\u0442\u0441\u044f \u0432 \u043b\u0430\u0434\u043e\u0448\u043a\u0435 \u0440\u0435\u0431\u0435\u043d\u043a\u0430, \u0442\u0430\u043a \u0438 \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27115,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-36248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0438\u0432\u044b\u0447\u043d\u044b\u0439.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sk\/blog\/news\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041c\u0430\u043b, \u0434\u0430 \u0443\u0434\u0430\u043b: \u043c\u0438\u043d\u0438\u0430\u0442\u044e\u0440\u043d\u044b\u0439 \u043b\u0438\u043d\u0435\u0439\u043d\u044b\u0439 \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u0435\u043b\u044c \u0447\u0430\u0441\u0442\u0438\u0446, \u043f\u043e\u0441\u0442\u0430\u0432\u0438\u0432\u0448\u0438\u0439 \u043d\u043e\u0432\u044b\u0439 \u0440\u0435\u043a\u043e\u0440\u0434 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u0440\u0438\u0432\u044b\u0447\u043d\u044b\u0439.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sk\/blog\/news\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T19:10:29+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:10:29+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Mal\u00fd, ale siln\u00fd: miniat\u00farny line\u00e1rny ur\u00fdch\u013eova\u010d \u010dast\u00edc, ktor\u00fd stanovil nov\u00fd rekord | ProHoster","description":"Zn\u00e1my.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041c\u0430\u043b, \u0434\u0430 \u0443\u0434\u0430\u043b: \u043c\u0438\u043d\u0438\u0430\u0442\u044e\u0440\u043d\u044b\u0439 \u043b\u0438\u043d\u0435\u0439\u043d\u044b\u0439 \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u0435\u043b\u044c \u0447\u0430\u0441\u0442\u0438\u0446, \u043f\u043e\u0441\u0442\u0430\u0432\u0438\u0432\u0448\u0438\u0439 \u043d\u043e\u0432\u044b\u0439 \u0440\u0435\u043a\u043e\u0440\u0434 | ProHoster","og:description":"\u041f\u0440\u0438\u0432\u044b\u0447\u043d\u044b\u0439.","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/mal-da-udal-miniatyurnyj-linejnyj-uskoritel-chastits-postavivshij-novyj-rekord","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T19:10:29+00:00","article:modified_time":"2019-10-31T19:10:29+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"36248","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-22 02:33:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 01:48:26","updated":"2026-01-22 02:33:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/36248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=36248"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/36248\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media\/27115"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=36248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=36248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=36248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}