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reseda:se [2020/07/17 08:22] – created Johanna Jochumreseda:se [2020/07/17 08:45] (current) Johanna Jochum
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 ====== Sample Environment ====== ====== Sample Environment ======
  
-RESEDA offers a variety of sample environments, such as cryostats, ovens and magnets. \\ +RESEDA offers a variety of sample environments, such as cryostats, furnaces and magnets.  
-You can find a selection of the available options below. It is however always recommended \\ +You can find an overview of the available options in the figure and a short description below.  
-to discuss your specific needs with RESEDA's instrument scientists, who are always happy to \\ +It is always recommended to discuss your specific needs with RESEDA's instrument scientists,  
-figure out the optimum setup.+who are always happy to figure out the perfect setup for your experiment. 
 + 
 +{{ :reseda:se_reseda.png?nolink&1200 |}}
  
 ===== Cryostats ===== ===== Cryostats =====
  
-One of the standard sample environments at RESEDA is a top loading CCR cryostat with an 80mm diameter.\\ +One of the standard sample environments at RESEDA is a top loading CCR cryostat with an inner diameter of 80mm (CCR12-80mm).\\ 
-The temperature range that can be accessed with this cryostat is between 3.5K and 310K. \\+The temperature range that can be accessed with this cryostat is between 3.5K and 320K. \\
 Due to it's large diameter, sample size is usually not an issue with this set-up. \\ Due to it's large diameter, sample size is usually not an issue with this set-up. \\
 When considering sample size it is however a good idea to consult our [[https://webapps.frm2.tum.de/reseda_redfac/|reduction factor calculator]]. \\ When considering sample size it is however a good idea to consult our [[https://webapps.frm2.tum.de/reseda_redfac/|reduction factor calculator]]. \\
- 
- 
  
 ==== Cryostat Inserts ====  ==== Cryostat Inserts ==== 
-  * <sup>3</sup>He insert:+  * <sup>3</sup>He insert:  
 +to extend the temperature range to 500mK a <sup>3</sup>He is needed. Such inserts fit into most 50mm cryostats (e.g. CCR-4 or CCR-5).\\ 
 +The cooling time to base temperature is approximately 4h.
   * Dilution fridge insert:   * Dilution fridge insert:
- +for even lower temperatures a dilution insert is needed, which gives access to temperatures between 50mK and 3KWhen temperature above \\  
- +this temperature range are needed as well, it should be taken into account that it will take quite some time to move the temperature across \\ 
-=== He3 Insert (for CCR) === +the <sup>3</sup>He condensation edge!\\ 
- +Cooling time to base temperature strongly depends on the sampleFor a sample in good thermal contact with the sample holder approximately \\ 
-He3 insert can reach temperatures from 300K down to 0.35K. Cooling time to base temperature is 3-4hours. Currently running He3 insert is very automatized and is used on PANDA very often+6h are needed\\ 
- +Measurements in this temperature range take a lot of preparation time and it is therefore paramount to discuss them with your instrument scientist\\ 
-  * {{:panda:se:frm2-inserts-drawing_febr_2015.pdf|[drawing] dimensions of available He3 and dilution inserts}} - On PANDA is normally used **3He-2 Ex-Halle** insert +as soon as possible to allow a smooth beamtime.
- +
-=== Dilution Insert (for CCR) === +
- +
-He3 insert can reach temperatures from 1K down to 80mK. Without running the dilution, it is possible to reach temperatures above 3K. But reaching stable temperatures between 1-3K is not possible. Cooling time to base temperature is roughly 6 hoursRunning dilution insert requires serious effort of the sample environment team+
- +
-  * {{:panda:se:frm2-inserts-drawing_febr_2015.pdf|[drawing] dimensions of available He3 and dilution inserts}} - On PANDA is normally used **Mischer 2** insert+
  
  
 ===== Magnets ===== ===== Magnets =====
  
 +==== Horizontal Field ====
  
-==== 5.5T SANS Magnet ==== +==== Vertical Field ====
- +
-==== 2.2T Magnet ====+
  
-==== 12T Magnet ==== 
  
-==== 3T Magnet ==== 
  
  
-===== Ovens =====+===== Furnaces =====
  
  
reseda/se.1594974150.txt.gz · Last modified: 2020/07/17 08:22 by Johanna Jochum