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Cryostat for AMoRE-10 (Contracted & manufacturing) Cryogen-free Dilution Refrigerator for AMoRE 10 -Pulse Tube based CFDR Leiden Cryogenics -Model : CF-1200-Maglev.

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Presentation on theme: "Cryostat for AMoRE-10 (Contracted & manufacturing) Cryogen-free Dilution Refrigerator for AMoRE 10 -Pulse Tube based CFDR Leiden Cryogenics -Model : CF-1200-Maglev."— Presentation transcript:

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2 Cryostat for AMoRE-10 (Contracted & manufacturing) Cryogen-free Dilution Refrigerator for AMoRE 10 -Pulse Tube based CFDR Leiden Cryogenics -Model : CF-1200-Maglev -Minimum Temperature : <10 mK -Cooling-power : 1.4 mW at 120 mK -Cool-down time : ~ 20 hours with LN 2 precooling without any extra load Contract informations -December, 23, Price : 420,000 euro -Delivery : shipped within September, 26, Delay penalty : 630 euro/day, Max. 10%

3 Experimental space of AMoRE 10 cryostat 5 layers, 7 columns Single LTD cell 35 CMO crystal (10 kg) AMoRE mm 60 mm Outer-most dimension Including Cu holder 550 mm M. C. bottom to 50 mK shield top 408 mm -Cu shield, lead blocks, and S/C shield inside the M. C. Installation : possible, but tight CMO crystal, 2 MMC, 2 SQUID, and copper holder.

4 Arrangement of cells  35 single cells are installed on the mounting unit Arrangement of single cells  Mounting unit is surrounded with the superconducting shield  Under developing of prototype string -Shape of single cell present will be tested SC shield  Superconducting shield including mounting unit will be supported by string  String type loading : vibration and thermal connection of M.C. plate Mounting unit

5 Lead shield in the MXC -700 Kg Lead shield in M. C.  Cool-down time to base temperature Expectation : 1 week with LN 2 pre-cooling Customization  100 kg lead shield in M. C.  Lead bricks will be installed at the bottom of the M.C. plate -Materials (IVC can, OVC can, thermal shield, etc)  IVC can & thermal shields : high purity copper internal radiation  IVC can : fabricating (welding) so difficult Dr. Li-Jin is searching proper company Lead bricks  Additional Lead bricks for surrounding detectors : under discussion  Each temperature plate : OFE grade copper under discussion Lead shield inside the refrigerator

6 Activation by the air transport (for reducing delivery time) Activation during the air transport  Copper of Aurubis company  The copper components in the AMoRe10 refrigerator are made with this  test block 1 : delivered by airplane (10 × 10 × 3 cm, 2.44 kg) will arrive Y2L by tomorrow - Using a Ge detector of Y2L, Dr. J. H. So will measure and compare the activation degree of two test blocks delivered by airplane and ship - Based on the result, the transportation way of AMoRE 10 refrigerator will be decided.  test block 2 : shipped (03/ 03/ 2014) (10 × 10 × 3 cm, 2.44 kg) coming soon

7 Loading a cryostat Base frame for CFDR loading Lead shield CFDR Solid enough to load our system  safety evaluation Thickness of lead shield 100 mm  150 mm

8 Loading a cryostat All lead shields are designed that it can be move for the experimental space  1.5 m experimental space  Person have to do a work on the base- frame : two persons possible move

9 A5 Lab in the Y2L The maximum height of LTD Lab : 3.7 m  270 mm space between ceiling and the top of the lead shield  Muon veto or other stuffs have to be set between the 270 mm space. Very tight

10 Additional refrigerator : under contacting will be ordered early or middle June Arrangement in A5 Lab office LTD AMoRE-10 Fridge Additional Fridge AMoRE-10 refrigerator : will arrive at middle or late October mm 65 mm 193 mm 90 mm E-rack Pump station Refrigerator Detector

11 Refrigerator, E-rack, pumping station, and compressor : 2 set Electrical power, coolant flux : determined Exhaust, air conditioning, and arrangement : more discussion All of construction : depends on “”””“ Dr. K. S. Park ””””” Arrangement in A5 Lab

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