11 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (Experiments in Toshiba, Susupension model, Sapphire fibers,

Slides:

Advertisements

Similar presentations

ET-meeting, 22 th Oct N. KIMURA/KEK The Latest Status of the KAGRA Cryogenics N. KIMURA A, D. CHEN B, T. KUME A, S. KOIKE A, Y. SAKAKIBARA B, T.

Advertisements

9 th /July/2013 Amaldi 10 C3 15:24~15:42 N.KIMURA/KEK Progress on the Cryogenic System for the Interferometric Cryogenic Gravitational Wave Telescope,

ET-meeting, 22 th Oct N. KIMURA/KEK The Latest Status of the KAGRA Cryogenics N. KIMURA A, D. CHEN B, T. KUME A, S. KOIKE A, Y. SAKAKIBARA B, T.

1 Kazuhiro Yamamoto, Dan Chen, Hiroki Tanaka, Takahiro Miyamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo KAGRA face to face meeting.

Rahul Kumar1, T. Takayuki1, K. Yamamoto2, H. Tanaka2,T. Miyamoto2, T

11 K. Yamamoto, R. Takahashi, T. Sekiguchi, Y. Sakakibara, C. Tokoku, M. Kamiizumi, U. Iwasaki, T. Uchiyama, S. Miyoki, M. Ohashi, T. Akutsu A, H. Ishizaki.

Cryo-payload Kazuhiro Yamamoto Institute for Cosmic Ray Research

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (ELiTES and IMPEX sapphire fiber) KAGRA(LCGT) cryogenic payload.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo KAGRA face to face meeting University of Toyama, Toyama, Japan 1 August.

Australia-Italy Australia 6, October 2005 LCGT project Kazuaki Kuroda LCGT Collaboration Cryogenics for LCGT.

Status of KAGRA LSC meeting 26 Sept., 2013 Nobuhiro KIMURA (KEK) On behalf of KAGRA Collaboration located at Kamioka, Gifu prefecture 200km west of Tokyo.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (ELiTES and Geometry of payload) KAGRA(LCGT) cryogenic payload.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo ELiTES: 2 nd general meeting Delegation of the European Union to Japan,

11111 K. Yamamoto A, T. Miyamoto A, H. Tanaka A, T. Uchiyama A, S. Zeidler B, A. Hagiwara C, N. Kimura C, R. Kumar C, T. Kume C, I. Murakami C, T. Suzuki.

111 K. Yamamoto, R. Takahashi, T. Sekiguchi, Y. Sakakibara, C. Tokoku, M. Kamiizumi, U. Iwasaki, E. Hirose, T. Uchiyama, S. Miyoki, M. Ohashi, T. Akutsu.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo ELiTES first collaboration meeting Sanjo conference hall, the University.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo Einstein Telescope Meeting 2013 Albert Einstein Institut Hannover,

11111 K. Yamamoto, R. Takahashi A, H. Tanaka, T. Miyamoto, K. Ono, T. Sekiguchi, Y. Sakakibara, M. Kamiizumi, E. Hirose, A. Khalaidovski, R. Kumar, T.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo KAGRA face to face meeting Institute for Cosmic Ray Research, Kashiwa,

Simulation for KAGRA cryogenic payload: vibration via heat links and thermal noise Univ. Tokyo, D1 Takanori Sekiguchi.

1 K. Yamamoto, R. Takahashi, T. Sekiguchi, T. Uchiyama, H. Ishizaki A, A. Takamori B, R. DeSalvo C, E. Majorana D, LCGT collaboration ICRR, NAO A,ERI B,

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo KAGRA face to face meeting University of Toyama, Toyama, Japan 1 August.

External forces from heat links in cryogenic suspensions D1, ICRR, Univ. Tokyo Takanori Sekiguchi GWADW in Hawaii.

111 Kazuhiro Yamamoto Institute for Cosmic Ray Research, the University of Tokyo Design and expected thermal noise of the KAGRA sapphire suspensions 23.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status KAGRA(LCGT) cryogenic payload meeting 8 February 2012.

1111 K. Yamamoto, R. Takahashi, K. Ono, T. Sekiguchi, Y. Sakakibara, C. Tokoku, M. Kamiizumi, U. Iwasaki, E. Hirose, A. Khalaidovski, T. Uchiyama, S. Miyoki,

11 K. Yamamoto and KAGRA collaboration Institute for Cosmic Ray Research the University of Tokyo Current status of KAGRA Cryogenic 16 May 2012 Gravitational-Wave.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Bulk materials, coating materials for KAGRA ELiTES WP2 meeting 15 June 2012.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Report from sub-groups Cryogenic Cryogenic payload 4 August 2011.

Cryogenic Payload Issues

Development of cryogenic payload for KAGRA VI

1 Cryogenic payload 1111 (1)ELiTES WP1 (Cryogenic payload) meeting : 13th of April, 25th of May WP2 meting (Cryogenic mirror): 2nd of May, 15th of June.

LCGT f2f meeting/ICRR, 04/Aug./2011 N. KIMURA Status of the Cryogenics Design N. KIMURA A, S. KOIKE B, T. KUME B, T. OHMORI D, Y. SAITO C, Y. SAKAKIBARA.

External forces from heat links in cryogenic suspensions D1, ICRR, Univ. Tokyo Takanori Sekiguchi.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status KAGRA(LCGT) cryogenic payload meeting 7 March2012.

111 Kazuhiro Yamamoto Institute for Cosmic Ray Research, the University of Tokyo Cryogenic interferometer technologies 19 May 2014 Gravitational Wave Advanced.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The University of Tokyo KAGRA external review (Cryogenic payload) 18 April 2012.

GWADW2011 Elba/Italy, 23/May/2011 N. KIMURA and Y. SAKAKIBARA Present Design of LCGT Cryogenic Payload - Status of Cryogenic Design - N. KIMURA*, Y. SAKAKIBARA**,

11 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (Toshiba, 1/4 cryostat, Sapphire fibers, ELiTES meeting,

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo LCGT internal review (Cryogenic payload) 30 January 2012.

11 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (Toshiba, ELiTES, Baffle, Brittleness of Maraging, Cryogenic.

11 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (ELiTES meeting, Guests, Toshiba, Sapphire fibers) KAGRA.

1 Cryogenic payload is not a simple system. We need cryostat to test cryogenic payload performance. 1/4 cryostat will be prepared in Kashiwa campus. 1/4.

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo LCGT internal review (Cryogenic payload) 30 January 2012.

E. Majorana (INFN – Rome) ELiTES 3 rd General Meeting Hongo Campus – Tokyo – 9-10 Feb., 2015 Cryogenic platform with vertical suspension: a practical approach.

Lessons from CLIO Masatake Ohashi (ICRR, The University of TOKYO) and CLIO collaborators GWADW2012 Hawaii 2012/5/16.

Status of the cryogenic payload system for baseline KAGRA Rahul Kumar 1, K. Craig 2, K. Yamamoto 2, H. Tanaka 2, T. Miyamoto 2,T. Kajita 2, T. Suzuki 1,

1 Kazuhiro Yamamoto Institute for Cosmic Ray Research (ICRR) the University of Tokyo KAGRA face to face meeting Institute for Cosmic Ray Research, The.

Recent progress of KAGRA cryogenic system

Vibration measurements at KAGRA site

Performance test of KAGRA cryostat at site

Overview of the 20K configuration

Pros and cons of cryogenics for Einstein Telescope and Cosmic Explorer

Performance test of KAGRA cryostat at site

Radiation shield vibration measurement at KAGRA site

Status of KAGRA Cryogenics II

Vibration measurements at KAGRA site

External forces from heat links in cryogenic suspensions

Cryogenic Payload Modeling: Vibration via Heat Links

Institute for Cosmic Ray Research The university of Tokyo

Cryogenic sub group Kazuhiro Yamamoto

Cryo-payload Suspension structure

Institute for Cosmic Ray Research The University of Tokyo

(Toshiba, 1/4 cryostat, Sapphire fibers, ET meeting, Jena)

Informal meeting of cryogenic payload

Development of vibration isolation systems for LCGT VII

Report from sub-groups Cryogenic Cryogenic payload

Development of vibration isolation systems for LCGT VI

Development of vibration isolation systems for LCGT VI

(Toshiba, 1/4 cryostat, Sapphire fibers, ET meeting, Jena)

Presentation transcript:

11 Kazuhiro Yamamoto Institute for Cosmic Ray Research The university of Tokyo Current status (Experiments in Toshiba, Susupension model, Sapphire fibers, Misc.) KAGRA cryogenic payload meeting 26 September 2012

Experiments in Toshiba 2 Experimental plans in Toshiba In this autumn, there will be cooling test of shileds in Toshiba Keihin Product Operations. At the same time, we have experimental plans in Toshiba. (1) Heat load test (2) Measurement of vibration of shield (3) Measurment of initial cooling time

3 Vibration of shield could be problems. Vibration via heat links, Scattered light This measurement is at cryogenic temperature and in vacuum. Luca Naticchioni (Rome) and Dan Chen will measure vertical and horizontal vibration of radiation shield of KAGRA in cooling test, respectively. D. Chen’s talk Experimental plans in Toshiba (2) Measurement of vibration of shield Experiments in Toshiba

4 Luca Naticchioni’s accelerometer Experimental plans in Toshiba (2) Measurement of vibration of shield Experiments in Toshiba

5 At beginning of initial cooling, heat transfer is dominated by radiation. Initial cooling time for cryogenic payload is about 2 months (if no tricks). Diamond Like Carbon (DLC) coating (High emissivity, Large radiation) on shields and payload (except for mirror) Y. Sakakibara’s talk Experimental plans in Toshiba (3) Measurment of initial cooling time Experiments in Toshiba

6 Initial cooling time with DLC (shield and mass) Y. Sakakibara’s talk Almost half ! Experimental plans in Toshiba (3) Measurment of initial cooling time Experiments in Toshiba

7 We must check the effect of radiation (and DLC coating) on the initial cooling time experimentally. We suspend something without heat link inside shield and monitor the temperature of something in shiled during cooling test. What is something ? Sample 1 : Sapphire and metal hollow sphere Sample 2 : Dummy payload (hollow masses) Experimental plans in Toshiba (3) Measurment of initial cooling time Experiments in Toshiba

8 Sample 1 : Sapphire and metal hollow sphere Experimental plans in Toshiba (3) Measurment of initial cooling time Evaluation of emissivity Scaling law (Y. Sakakibara’s small experiment: 30 mm in diameter) His talk (100 mm in diameter) Experiments in Toshiba

9 Sample 2 : Dummy payload (hollow masses) Experimental plans in Toshiba (3) Measurment of initial cooling time Half size Hollow masses (~5 kg) DLC coating Sapphire bulk as dummy mirror Preparation is in progress. S. Koike : Drawing Experiments in Toshiba

10 Schedule of cooling test and other experiments Schedule could be changed ! October : 1st cryostat Sapphire and metal hollow sphere without DLC coating Novemeber : 2nd cryostat Measurement of vibration of shield (Luca) December : 3rd cryostat : Sapphire and metal hollow sphere with DLC coating January : 4th cryostat Dummy payload Measurement of vibration of shield (Dan Chen) Experiments in Toshiba

11 Small meeting on 28th of Aug. Attendees : Y. Aso, T. Sekiguchi, M. Nakano, and K. Yamamoto T. Sekiguchi has already constructed the code to evaluate external vibraion and thermal noise. M. Nakano proceeds with the improvement to consider control scheme. Suspension model

12 IMPEX HighTech GmbH (German company) They can make similar fibers (nail heads on the both ends). Delivery of shot fibers (about 100 mm in length) with nail heads delayed. A head was attached. The other one will be attached. E. Mojorana visited IMPEX on the last week and summarized report. R. DeSalvo and A. Bertolini visit IMPEX on this week. (They also discuss sapphire ribbon) Sapphire fibers

13 Misc. 1.ELiTES meeting : 3 rd and 4 th of Oct. Program We have other meeting on 5 th of Oct. 2. Y. Sakakibara paper (cryogenic duct) is finally published ! Classical and Quantum Gravity 29 (2012)