{"id":13035,"date":"2024-12-16T09:42:26","date_gmt":"2024-12-16T08:42:26","guid":{"rendered":"https:\/\/onload.reinhausen.com\/de\/?p=13035"},"modified":"2024-12-16T09:42:27","modified_gmt":"2024-12-16T08:42:27","slug":"chokes-particle-accelerator-cern","status":"publish","type":"post","link":"https:\/\/onload.reinhausen.com\/en\/12-2024\/chokes-particle-accelerator-cern\/","title":{"rendered":"Facelift for particle Accelerator"},"content":{"rendered":"\n
\n\n\n\n

The chokes from MANGOLDT, a mem\u00adber of the Rein\u00adhausen Group, ensure max\u00adi\u00admum safe\u00adty and effi\u00adcien\u00adcy in elec\u00adtri\u00adcal grids all over the world. But the job for (Lab\u00ado\u00adra\u00adtoire europ\u00e9en pour la physique des par\u00adtic\u00adules) near Gene\u00adva was some\u00adthing very spe\u00adcial for the Aachen-based com\u00adpa\u00adny. Found\u00aded in 1954, the Euro\u00adpean lab\u00ado\u00adra\u00adto\u00adry enables par\u00adti\u00adcle physi\u00adcists to car\u00adry out cut\u00adting-edge inter\u00adna\u00adtion\u00adal research using the most pow\u00ader\u00adful par\u00adti\u00adcle accel\u00ader\u00ada\u00adtors in the world.<\/p>\n\n\n\n

The research site, which cov\u00aders around 600 hectares, is home to a gigan\u00adtic com\u00adplex of par\u00adti\u00adcle accel\u00ader\u00ada\u00adtors that are con\u00adnect\u00aded to each oth\u00ader via a tun\u00adnel sys\u00adtem sev\u00ader\u00adal kilo\u00adme\u00adters long. There are also var\u00adi\u00adous exper\u00adi\u00admen\u00adtal areas, such as the North Area which has been used for physics exper\u00adi\u00adments since the 1970s as part of the Super Pro\u00adton Syn\u00adchro\u00adtron (SPS). As the facil\u00adi\u00adty is get\u00adting on in years, it has been under\u00adgo\u00ading ren\u00ado\u00adva\u00adtion since 2021. Ivan Josi\u00adfovic is lead\u00ading the devel\u00adop\u00adment of the main pow\u00ader\u00ading solu\u00adtion at CERN: \u201cThe pow\u00ader con\u00advert\u00aders in the North Area will be replaced in the next few years so that it will once again be able to answer the open ques\u00adtions in par\u00adti\u00adcle physics.\u201d<\/p>\n\n\n\n

\n
<\/div>\n\n\n\n
\n
<\/figure>\n<\/div>\n\n\n

\u201cWe are very sat\u00adis\u00adfied with the pro\u00adfes\u00adsion\u00adal coop\u00ader\u00ada\u00adtion with Man\u00adgoldt. We always received a quick response to our ques\u00adtions.\u201d<\/p>\nIvan Josi\u00adfovic, Project Man\u00adag\u00ader CERN<\/cite><\/blockquote>\n\n\n\n

<\/div>\n<\/div><\/div>\n\n\n\n

Perfectly transformed<\/h2>\n\n\n\n

The POLARIS pow\u00ader con\u00advert\u00aders devel\u00adoped by CERN are a key com\u00adpo\u00adnent. Their func\u00adtion is to pre\u00adcise\u00adly con\u00adtrol the mag\u00adnet\u00adic field of the par\u00adti\u00adcle accel\u00ader\u00ada\u00adtors in order to accel\u00ader\u00adate elec\u00adtrons and pro\u00adtons to almost the speed of light. To do this, they con\u00advert the alter\u00adnat\u00ading cur\u00adrent from the pow\u00ader grid into direct cur\u00adrent and pass it on to the par\u00adti\u00adcle accelerator\u2019s elec\u00adtro\u00admag\u00adnets. How\u00adev\u00ader, the cur\u00adrent is dis\u00adtort\u00aded dur\u00ading the con\u00adver\u00adsion.<\/p>\n\n\n\n

Ivan Josi\u00adfovic explains it like this: \u201cIf you were to rep\u00adre\u00adsent direct cur\u00adrent graph\u00adi\u00adcal\u00adly, it would be a straight line. The con\u00adver\u00adsion caus\u00ades it to line, so min\u00adi\u00admiz\u00ading cur\u00adrent devi\u00ada\u00adtions is crit\u00adi\u00adcal across the accel\u00ader\u00ada\u00adtor.\u201d To pre\u00advent out\u00adliers, CERN there\u00adfore relies on fil\u00adter chokes from MANGOLDT in the North Area project. There are three chokes in each pow\u00ader con\u00advert\u00ader. The first is a so-called DC-link fil\u00adter choke, which draws the cur\u00adrent from the pow\u00ader grid and pass\u00ades it on to two high-fre\u00adquen\u00adcy chokes for con\u00adtrol of pow\u00ader exchange with the elec\u00adtro\u00admag\u00adnets. Ivan Josi\u00adfovic from CERN says: \u201cThe high-fre\u00adquen\u00adcy chokes have to work very pre\u00adcise\u00adly in order to smooth out the out\u00adliers.\u201d<\/p>\n\n\n\n

By pre\u00adcise work, Josi\u00adfovic means the low\u00adest pos\u00adsi\u00adble devi\u00ada\u00adtion of the chokes. Michael E\u00dfer, Head of Engi\u00adneer\u00ading at MANGOLDT, explains: \u201cInduc\u00adtiv\u00adi\u00adty could also be described as a kind of cur\u00adrent brake.\u201d This means that a low\u00ader induc\u00adtance is used at high\u00ader fre\u00adquen\u00adcies in order to damp\u00aden the inter\u00adfer\u00adence which enables the chokes to deliv\u00ader the elec\u00adtri\u00adcal volt\u00adage pre\u00adcise\u00adly to the mag\u00adnets.<\/p>\n\n\n\n

\n
<\/div>\n\n\n
\n
<\/figure>\n<\/div>\n\n\n

With the help of the chokes from MANGOLDT the mag\u00adnet\u00adic field remains sta\u00adble.<\/p>\n<\/div><\/div>\n\n\n\n

The experts at MANGOLDT achieve the low devi\u00ada\u00adtion through a spe\u00adcial design. A choke has two main com\u00adpo\u00adnents: a core made of sheet iron and a wind\u00ading con\u00adsist\u00ading of coiled insu\u00adla\u00adtion mate\u00adr\u00adi\u00adal and alu\u00adminum or cop\u00adper strip. The iron core is divid\u00aded into sev\u00ader\u00adal seg\u00adments by spe\u00adcial air gaps. Michael E\u00dfer explains: \u201cWith the size and num\u00adber of air gaps, we can adjust the induc\u00adtance and meet CERN\u2019s require\u00adments.\u201d In addi\u00adtion to induc\u00adtiv\u00adi\u00adty, Josi\u00adfovic believes anoth\u00ader prop\u00ader\u00adty is cru\u00adcial: \u201cThe high-fre\u00adquen\u00adcy chokes must not get hot\u00adter than 70 degrees Cel\u00adsius dur\u00ading use. Oth\u00ader\u00adwise this short\u00adens their ser\u00advice life.\u201d<\/p>\n\n\n\n

To com\u00adply with this lim\u00adit, MANGOLDT uses par\u00adtic\u00adu\u00adlar\u00adly thin sheet iron, as this gen\u00ader\u00adates very lit\u00adtle waste heat. \u201cWe are very sat\u00adis\u00adfied with the pro\u00adfes\u00adsion\u00adal coop\u00ader\u00ada\u00adtion with MANGOLDT. We always received a quick response to our ques\u00adtions,\u201d sum\u00adma\u00adrizes Josi\u00adfovic. There is still a lot for MANGOLDT to do. A total of 3,750 chokes are need\u00aded in the POLARIS Pow\u00ader Con\u00advert\u00aders to sup\u00adply the mag\u00adnets with elec\u00adtric\u00adi\u00adty. The ren\u00ado\u00adva\u00adtion work in the North Area will be com\u00adplet\u00aded in 2029.<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n
\n\n\n
\n
<\/figure>\n<\/div>\n\n\n

YOUR CONTACT<\/h2>\n\n\n\n

If you have any ques\u00adtions about the chokes, Michael E\u00dfer will be hap\u00adpy to help you:
<\/i><\/a> \u2009<\/a>m.esser@reinhausen.com<\/a><\/p>\n<\/div><\/div>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

The Euro\u00adpean lab\u00ado\u00adra\u00adto\u00adry for par\u00adti\u00adcle physics, CERN, is one of the largest research facil\u00adi\u00adties in the world. In a cur\u00adrent project, the North Area exper\u00adi\u00admen\u00adtal facil\u00adi\u00adty is being brought up to the state of the art. MANGOLDT fil\u00adter chokes play a deci\u00adsive role in this.<\/p>\n","protected":false},"author":4,"featured_media":13040,"comment_status":"closed","ping_status":"open","sticky":false,"template":"template-cover.php","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-13035","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-12-2024"],"acf":[],"_links":{"self":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13035","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/comments?post=13035"}],"version-history":[{"count":3,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13035\/revisions"}],"predecessor-version":[{"id":13508,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13035\/revisions\/13508"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media\/13040"}],"wp:attachment":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media?parent=13035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/categories?post=13035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/tags?post=13035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}