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== 冷凍機 ==
 . リーダー： 春山富義 (KEK)
 . サブリーダー：内山隆 (ICRR)		 = Members and Responsibility =
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=== Document ===
 . ・[[attachment:LCGT/subgroup/vis/ICD_cryocooler.doc|ICD]]		 Chief: Takayuki Tomaru (NAOJ/KEK)
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== 低温装置 ==
 . リーダー： 鈴木敏一 (KEK)
 . サブリーダー：内山隆 (ICRR)
 . サブリーダー：木村誠宏 (KEK)
 . サブリーダー(Cryo-Payload)：山元一広 (ICRR)		 Subchief: Nobuhiro Kimura (KEK/ICRR), Cryostat & Cryocoolers
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=== Document ===
 . ・[[attachment:KAGRA/Subgroups/VAC/RandD_cryo.pdf|研究開発項目]]
 . ・[[attachment:KAGRA/Subgroups/VAC/e_measure20100406v2.pdf|300K放射率 2010.04.07]]
 . ・[[attachment:KAGRA/Subgroups/VAC/e_measure110309_SI他.pdf|300K放射率 MLI 2011.03.09]]		 Subchief: Kazuhiro Yamamoto (Toyama Univ.), Thermal Noise & Sapphire

Subchief: Takafumi Ushiba (ICRR), Cryogenic Payload

= Design & Drawings =
 
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 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1405|KAGRA cryostatの設置向きについて(K. Yamamoto)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=568|Parameters of cryogenic payload(K. Yamamoto)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2106|Preliminary design of Type-A suspension system (cryogenic seismic attenuation system) for KAGRA sapphire mirrors(T. Sekiguchi, E. Hirose)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2005|Cryostat, cryoduct, and vacuum chamber for Type A in CAD(S. Koike)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2076|Components in KAGRA radiation shield(S. Koike)]]
 . ・ [[https://www.icrr.u-tokyo.ac.jp/~miyoki/KAGRA-CleanBooth.zip|CAD drawing for clean booth(Shinji Miyoki)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2188|Wide-angle baffle(prototype)(T. Akutsu)]]

= Document =
 . ・[[attachment:LCGT/subgroup/vis/ICD_cryocooler.doc|ICD]]
 . ・[[attachment:KAGRA/Subgroups/VAC/RandD_cryo.pdf|研究開発項目]]
 . ・[[attachment:KAGRA/Subgroups/VAC/e_measure20100406v2.pdf|300K放射率 2010.04.07]]
 . ・[[attachment:KAGRA/Subgroups/VAC/e_measure110309_SI他.pdf|300K放射率 MLI 2011.03.09]]
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 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3190|RF and AF Cabling Policy for KAGRA ISC(Y. Michimura)]]
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=== Schedule about cryogenic payload === === How to use Phytron motor (cryo-payload stepping motor) ===

  * [[KAGRA/Subgroups/CRY/software|Software]]
  * [[KAGRA/Subgroups/CRY/HowToUsePhyLogic|How to use phylogic]]

= クライオスタット姿勢変動　不同沈下 =


= Schedule =
 * [[KAGRA/Subgroups/CRY/CRYSchedule|CRY Schedule]]
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=== KAGRA cryogenic payload kickoff meeting (2013 Nov. 15th ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1992|(E. Hirose)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1990|Strategies for suspension: HC bonding and indium welds - Status and required R&D)(A. Khalaidovski)]]
 . [[attachment:kickoffchen.pdf|OSEM and stepping motor]] (D. Chen)		 == Meeting ==
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=== 20th cryogenic payload meeting (2013 Feb. 6 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1501|Current status (1/4 cryostat, Toshiba, Sapphire fibers)(K. Yamamoto)]]		   * [[KAGRA/Subgroups/CRY/CSIM|Cryogenic System Integration Meeting]] : 13:30 of every Tuesday (ICRR)
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=== 19th cryogenic payload meeting (2013 Jan. 9 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1470|Cryogenic accelerometer(D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1469|Mechanical loss measurement of sapphire fibers and cryoduct with baffle(Y. Sakakibara)]]		   * [[KAGRA/Subgroups/CRY/CRYpmeeting|Cryogenic payload meetings]] are held on 15:00 of every Tuesday (ICRR)
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=== 18th cryogenic payload meeting (2012 Dec. 12 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1424|Thermal Boundary Resistance(W. Johnson)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1423|Cryogenic accelerometer and sphere without DLC in Toshiba(D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1422|Current status (Toshiba, 1/4 cryostat, sapphire fibers, ET meeting, Jena)(K. Yamamoto)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1420|Mechanical loss measurement of sapphire fibers and disks(Y. Sakakibara)]]		   * [[KAGRA/Subgroups/CRY/CRYpmeeting/MirrorQ|Mirror Q ]]
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=== 17th cryogenic payload meeting (2012 Nov. 4 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1381|Reprot from Glasgow (Y. Sakakibara)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=1383|Measurement of vibration of radiation shield(D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1382|Current status (ELiTES meeting, Guests, Toshiba, Sapphire fibers)(K. Yamamoto)]]		 == Action Items list ==
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=== 16th cryogenic payload meeting (2012 Sep. 26 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1293|Current status (Experiments in Toshiba, Suspension model, Sapphire fibers. Misc. )(K. Yamamoto)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1292|Radiation effect in initial cooling (Y. Sakakibara)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1294|Measurement of vibration of radiation shield(D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1271|Separated Functions proposed for KAGRA suspensions(W. Johnson)]]		   * [[KAGRA/Subgroups/CRY/ryopayload_AIs|Action Item List]]
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=== 15th cryogenic payload meeting (2012 Aug. 29 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1257|Report of ELiTES thermal noise workshop I (Optical experiment in Jena)(D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1256|Report of ELiTES thermal noise workshop II (Parametric instability of ET) (K. Shibata)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1254|Current status (Toshiba, ELiTES, Baffle, Brittleness of Maraging, Cryogenic duct)(K. Yamamoto)]]		 == Digital system of cryo ==
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=== 14th cryogenic payload meeting (2012 Aug. 8 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1229|Cryogenic accelerometer (D. Chen)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1221|Initial cooling via radiation (Y. Sakakibara)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1225|Thermal conductivity of sapphire fibers (T. Ushiba)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1220|Current status (University of Toyama, ELiTES, Baffle, Mirror)(K. Yamamoto)]]

=== 13th cryogenic payload meeting (2012 July. 4 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1127|Other idea for suspension (W. Johnson)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1126|Silicon flexures suspension (R. DeSalvo)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1125|Current status(Measurement of Q values of sapphire fibers)(K. Shibata)]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1124|Current status(ELiTES and Toyama workshop)(K. Yamamoto)]]

=== 12th cryogenic payload meeting (2012 June. 6 ICRR) ===
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1101|Silicon flexures suspension (R. DeSalvo)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1102|Current status(Measurement of thermal conductivity of sapphire fiber)(T. Ushiba)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1100|Current status(ELiTES and IMPEX sapphire fiber)(K. Yamamoto)]]

=== 11th cryogenic payload meeting (2012 April. 25 ICRR) ===
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1019|Current status(ELiTES and Geometry of payload)(K. Yamamoto)]]

=== 10th cryogenic payload meeting (2012 April. 4 ICRR) ===
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=934|Current status (Research strategies and Geometry of payload)(K. Yamamoto)]]

=== 9th cryogenic payload meeting (2012 Mar. 7 ICRR) ===
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=896|Measurement of RRR of candidate materials (Shibata)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=897|Material Selection for the Masses (5) and Lab Preparation(Tokoku)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=895|Current status (Yamamoto)]]

=== 8th cryogenic payload meeting (2012 Feb. 8 ICRR) ===
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=863|Reduction of thermal radiation through a shield pipe for KAGRA (Sakakibara)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=865|Material Selection for the Masses (4) and Lab Preparation(Tokoku)]]
 . ・[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=864|Current status (Yamamoto)]]

=== 第七回　低温懸架打ち合わせ(2012.1.10 ICRR) ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=771|現状報告（マスとワイヤの材質選択と実験室準備）（東谷）]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=769|現状報告（熱雑音とサファイアファイバ）（山元）]]

=== 第六回　低温懸架打ち合わせ（2011.11.30 ICRR） ===
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=716|Sapphire fiberの熱雑音（関口）]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/20111130_material_tokoku.pdf|4分の1実証機の準備の進捗およびマスの材質-（東谷）]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=721|サファイアファイバ関連とparameterについて（山元）]]
 .

=== 第五回　低温懸架打ち合わせ（2011.10.26 ICRR） ===
 . ・ [[attachment:KAGRA/Subgroups/VAC/vertical-spring.pdf|低温用縦ばねの開発-（高橋）]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/20111026_material_tokoku.pdf|マスの材質-（東谷）]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=640|高放射率材料の反射率測定（榊原）]]
 . ・ [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=639|並木精密宝石、今後のcryogenic payloadの方針（山元）]]

=== 第四回　低温懸架打ち合わせ（2011.09.28 ICRR） ===
 . ・ [[attachment:KAGRA/Subgroups/VAC/meeting110928.ppt|低温懸架打ち合わせ-（山元） 110928]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/tapered sapphire fiber 110928.pdf|テーパー付サファイアファイバー-（内山） 110928]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/榊bafdoublecone2.pdf|ダクトシールドからの入熱-（榊原） 110928]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/報告110928_TS.pdf|接合の進展 -常温接合打ち合わせ報告-（鈴木） 110928]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/minute (2011 Sep. 28).pdf|議事録-（山元） 110928]]

=== 第三回　低温懸架打ち合わせ（2011.08.31 ICRR） ===
 . ・ 低温懸架装置ミーティング（山元）110831
 . ・ [[attachment:KAGRA/Subgroups/VAC/110831coolingtime_sakakibara.pdf|初期冷却時間（榊原） 110831]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/110831highem_sakakibara.pdf|黒化処理材料の反射率測定（榊原） 110831]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/SapphireBond_CryoPayload3rd_TS_v1.pdf|接合の現状（鈴木） 110831]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/minutes110831_susp.pdf|議事録（山元） 110831]]

=== 第一回　低温懸架打ち合わせ（2011.07.01 KEK） ===
 . ・ [[attachment:KAGRA/Subgroups/VAC/kickoff110701.ppt|打ち合わせ資料（山元） 110701]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/PAB110621CryogenicsE2.ppt|参考資料（鈴木） 110701]]

=== 低温装置打ち合わせ ===
 . Vib. Isolator for 1W PTC 2011.06.27 at J. Torisha
 . ・ [[attachment:KAGRA/Subgroups/VAC/torisha110627.pdf|立ち会い報告 110627]]

.Report of annealing for thin Al bundles 2011.06.24 .・ [[attachment:Anneal_thin_Al_bundle110624v2.pdf|Heat Linkサンプルの焼鈍結果 110627]]

.Cryostat Shield (4th) 2011.2.24 and Cryostat Shield (4th) 2011.2.25, KEK Cryogenics Centre R110

 . ・ [[attachment:KAGRA/Subgroups/VAC/CryoShield110224_25Memo.rtf|打ち合わせメモ 11024および110225]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/LCGT_Shieldmode-110225.pdf|Cryostat Shields図 110225]]

.Cryostat Shield (4th) 2011.2.14 KEK Cryogenics Centre R110

 . ・ [[attachment:KAGRA/Subgroups/VAC/shield110217Memo.rtf|打ち合わせメモ 110217]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/LCGT_Cryo_110217.pdf|Cryostat Shields図 110217]]

.Cryostat Shield (3rd) 2011.2.10 KEK Cryogenics Centre R110 Polycom+EVO

 . ・ [[attachment:KAGRA/Subgroups/VAC/議事録110210.rtf|打ち合わせメモ110210]]
 . ・ [[attachment:KAGRA/Subgroups/VAC/LCGT_Cryo_110210.pdf|Cryostat Shield図 110210]]

.Cryostat 2010.11.18 EVO

 . ・ [[attachment:KAGRA/Subgroups/VAC/cryo20101119_2.pdf|打ち合わせ資料v2]]
 . ・[[attachment:KAGRA/Subgroups/VAC/SI_outgas20101104s.pdf|SI脱ガス中間報告]]
 . ・[[attachment:KAGRA/Subgroups/VAC/graphitesheets.pdf|グラファイトシート]]		   * [[KAGRA/Subgroups/CRY/DigitalSystemCryo|How to]]
  * [[KAGRA/Subgroups/CRY/command|Command]]
  * [[KAGRA/Subgroups/CRY/directory|Directory Structure]]

Contents

  1. Members and Responsibility
  2. Design & Drawings
  3. Document
      1. How to use Phytron motor (cryo-payload stepping motor)
  4. クライオスタット姿勢変動　不同沈下
  5. Schedule
    1. Meeting
    2. Action Items list
    3. Digital system of cryo

Members and Responsibility

Chief: Takayuki Tomaru (NAOJ/KEK)

Subchief: Nobuhiro Kimura (KEK/ICRR), Cryostat & Cryocoolers

Subchief: Kazuhiro Yamamoto (Toyama Univ.), Thermal Noise & Sapphire

Subchief: Takafumi Ushiba (ICRR), Cryogenic Payload

Design & Drawings

Document

How to use Phytron motor (cryo-payload stepping motor)

クライオスタット姿勢変動　不同沈下

Schedule

Meeting

Action Items list

Digital system of cryo

KAGRA/Subgroups/CRY (last edited 2023-07-10 12:16:15 by miyoki)