= PEM injection in bKAGRA phase1 =
(Description will be translated to English at some point)

== Aims ==
In bKAGRA phase1,

 * Investigate the projection of the environmental noise effect to the sensitivity of KAGRA interferometer
 * Characterize the effect of the scattering light
 * Morphologically study the environmental noise waveform

(bKAGRA phase1 における、

 * 干渉計感度への環境雑音の影響のプロジェクション
 * 散乱光のキャラクタリゼーション
 * 雑音の形態学的スタディ)

== Injection types ==
 * Acoustic injection (AcI)
 * Magnetic injection (MaI)
 * Shaking injection (ShI)

== What we want to do ==
=== Necessary ===
 * Measuring coupling functions between environmental noise and interferometer signal
 * Measuring environmental noise using several sensors
 * Spectrogram of the interferometer signal during injection

=== If possible ===
 * Narrow down coupling locations
 * Narrow down environmental noise source locations
 * Switch off test
 * Identify line noise sources
 * RF noise measurement around RF modulation sideband frequencies.
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/MIFIOOInterfaces|RF modulation sideband frequency list]]

=== Candidates of measurement points ===
 * PSL
 * IMC (mirrors, refl table)
 * IFI
 * PRM
 * BS
 * ETMX/Y (1F,2F)
 * TMS (both end)
 * WAB
 * Arms

(including racks of each points for control and DAQ.)

== Schedule ==
(VERY ROUGH)

 * 2017/12/06 Project started
 * 2017/12/26 Rehearsal of rehearsal
 * Before bKAGRA phase1 run (Detailed date has not been fixed): Preparation
 * 2018/01/11-12: Preparation of reharsal
 * 2018/02/13-15 (option 2/16): Rehearsal of PEM injection (end-to-end test, maybe without actual injection)
 * 2018/04/09-13: Second rehearsal
 * After bKAGRA phase1 run (Detailed date has not been fixed): Injection test in tunnel (2 days)
 * After injection test: Analysis, make report, (if possible) write paper

== Sensors and instruments information ==
=== Common ===
||Items ||Numbers ||Part Number ||Need to order ||Ordered ||We have ||JGW S-number ||Comment ||
||Amplifier ||1 ||QSC RMX5050a ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7540|S1707540]] || ||
||Head set ||6 ||[[https://www.monotaro.com/g/02888875/?t.q=SHSBE23|BSHSBE23]] ||No ||Yes ||Yes ||N/A || ||
||Small accelerometer ||several ||KISTLER Accelerometer Type 8640A5 ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7227|List]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7218|S1707218]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7219|7219]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7221|7221]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7222|7222]] (Pre-amp)  [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8143|8143]] || /!\ Only 4 white BNC cable for these 9 sensor! We need more! [[attachment:acc_amp180208.pdf|How to use pre-amps.]] ||
||Laser accelerometer ||1 ||Not known ||No ||No ||Yes? ||N/A ||RION ||
||Clay(?) to fix accelerometer ||a few ||Not known ||No ||No ||Yes? ||N/A || ||
||Cables and connectors ||many ||Not known ||Partially need? ||No ||Partially no? ||N/A || ||
||Low noise filter ||1 ||Not known ||Need ||No ||No ||N/A ||Like SR560. Hand made? ||
||Function generator ||1 ||AFG3022C ||No ||No ||Yes ||N/A || ||


=== Acoustic injection ===
||Items ||Numbers ||Part Number ||Need to order ||Ordered ||We have ||JGW S-number ||Comment ||
||Large speaker ||2 ||JBL JRX212 ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7645|S1807645]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7646|7646]] ||[[http://asia.jblpro.com/www/products/portable-market/jrx200-series#.WhbMP0pl93h|URL]] ||
||Small speaker (PZT) ||1 ||Not known ||Need ||No ||No ||N/A ||(If possible) ||
||Microphone ||1 ||B&K 4188 + 2671 (case) + 1704 (pre-amp) ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8142|S1808142]] || ||
||Microphone2 ||2 ||AT-VD6 + AT-MA2 (amp) ||No ||No ||Yes ||(VD6)[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7647|S1807647]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7648|7648]]  (MA2)[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7649|S1807649]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7650|7650]] || ||
||Seismometer ||1 ||Trillium compact 120-SV1 ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7526|S1707526]] || ||
||Earplug ||6 ||[[https://www.monotaro.com/p/3709/4854/|イヤーマフ H7B]] ||No ||Yes ||Yes ||N/A || ||
||Rubber stack ||8 ||[[https://jp.misumi-ec.com/vona2/detail/221000018475/|KE-25 (Misumi)]] ||No ||Yes ||Yes ||N/A ||(If possible.) ||
||Horn ||1 ||Not known ||Need ||No ||No ||N/A || ||


=== Magnetic injection ===
||Items ||Numbers ||Part Number ||Need to order ||Ordered ||We have ||JGW S-number ||Comment ||
||Large Coil ||1 ||Not known ||No ||Yes ||No ||N/A ||a few Ohms, ~1 m dia. ||
||Small Coil ||1 ||Not known ||Need ||No ||No ||N/A ||(If possible) ||
||Magnetometer ||2 ||Mag-13MCL100 +amplifier ||No ||No ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7535|S1707535]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7536|7536]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7537|7537]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7538|7538]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7539|7539]] ||[[http://www.bartington.com/Literaturepdf/Datasheets/Mag-13%20DS3143.pdf|URL (pdf)]] ||
||Small magnetometer ||1 ||Mag649 ||No ||No ||Yes ||N/A ||[[https://granite.phys.s.u-tokyo.ac.jp/wiki/Lab/index.php?AndoLabInstrumentsMag649|Ando lab's instrument]], 3 axes can be measured ||


=== Shaker injection ===
||Items ||Numbers ||Part Number ||Need to order ||Ordered ||We have ||JGW S-number ||Comment ||
||Large Magnet coil shaker ||1 ||Not known ||No ||No ||Yes ||N/A ||NAOJ ||
||Small shaker ||1 ||LW142.FS-2 ||No ||Yes ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7917|7917]] || ||
||Mallet ||1 ||Not known ||No ||Yes ||Yes ||N/A || ||
||Impulse hammer ||1 ||GK-4110G20 ||No ||Yes ||Yes ||[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8120|S1808120]] || ||


=== Others ===
||Items ||Numbers ||Part Number ||Need to order ||Ordered ||We have ||JGW S-number ||Comment ||
||RF antenna ||2 ||Not known ||Need ||No ||No ||N/A ||Could be made ourselves? ||
||RF signal amplifier ||2 ||Not known ||Need ||No ||No ||N/A ||Could be made ourselves? [[http://www.rk-microwave.com/jp/products/PA.php|R&K]]とかは? ||
||RF generator ||1 ||Not known ||Need ||No ||No ||N/A ||(If possible. Can Moku:Lab be used?) ||
||RF spectrum analyzer ||1 ||Not known ||No ||No ||Yes ||N/A ||Moku:Lab ||


== To be prepared ==
 * CDS (Real time model, DAC, ADC, DQ)
 * Calibration (Sensors, DAC, ADC)
  * ADCの入力インピーダンスは10 kΩ (ref. [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=779|JGW-T1200779]] or Shoda-san's PhD thesis.)
 * Analysis code to calculate coupling function (peaks, comb, broad)
 * Spectrogram tools
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=1816
 * MEDM

== Calibration ==
 * ADC: (for single-ended sensors) 20/2^15^ V/count (0.0006103515625), (for differential sensors) 10/2^15^ V/count (0.0003051757812)
  * input impedance 10 kΩ
 * Small magnetometer (Mag649, Range +/-100 uT): 30 mV/uT (from manual)
 * Microphone (BRÜEL & KJÆR 4188): 31.6 mV/Pa (from manual)
 * Microphone2 (AUDIO-TECHNICA AT-VD6): ~320 mV/Pa (with Max gain, from measurement)
  * 以下のようなフィルターで補正:
   . rpoly([1;851.0859999999958;464981.9999999983],[1;0;0],0.9999999999999996)zpk([0;0],[1;1],1,"n") butter("HighPass",3,3)gain(3.125)
   . (res freq: 108.5 Hz, Q: 0.8012, gain:3.125, 3-order Butterworth high-pass, 2-order high-pass: 1 Hz)
 * photosensor for toy pendulum (リハーサルのインジェクション対象): 1.12 V/mm (@4.2mm(micrometer), [[http://granite.phys.s.u-tokyo.ac.jp/shimoda/KAGRA/PEM/reharsal/PSresponse.png|from measurement]])
 * Impulse hummer (GK-4110G20): 0.23 mV/N (from web page, 4379 N/V)
 * Accelerometer (8640A5):1000 mV/g (9.8 m/s^2/V), Amplifier [[attachment:acc_amp180208.pdf|Araya-san's instruction.]]

== Number of usable channel for each rack ==
★ 最低限なにかしらのDAQがほしい場所

 1. MC、PRエリア（IMC0ラックに寄生？）
 1. BS、SRエリア（PR2ラックに寄生？＋追加のADCはここ）
 1. IXCエリア（WABラックに寄生？）
 1. IYCエリア（WABラックに寄生？）
 1. EXCエリア（？？？誰）
 1. EYCエリア（？？？誰）
 1. IXVエリア（TypeAラック、CryoP？）
 1. IYVエリア（TypeAラック、CryoP？）
 1. EXVエリア（TypeAラック、CryoP？）
 1. EYVエリア（TypeAラック、CryoP？）
 1. Xアーム (PX1ラックに寄生?)
  * BNCの配線を考えると、コレぐらいのエリアが最低限で現実的。
  * 最初はざっくり10枚ADCがほしいとリクエストしてみましたが、無理でした。

== To do list ==
Currently, to do list is managed in github project (github issue): https://github.com/gw-analysis/detector-characterization

Current milestone: (On-site) Install sensors and consider their operation, (Off-site) Analyze rehearsal data and prepare actuators (by 2018/03/30)

 * Obtain S/N on JGWdoc for all PEM related things, e.g. sensors, actuators, amplifiers, non-standard cables.
 * アナログ回路(~10 kHzの早いインジェクション用)を作る。
 * 確保できるチャンネル数の中で、やること/できることを具体化する。
 * センサー・アクチュエータ類のキャリブレーション。
  * 主にコイル(他はマニュアルを信じる) --> 長野
 * 磁束計Mag13のセットアップ --> 田中
 * コイルの作製 --> 長野
 * MEDM画面の作成 --> 誰か+シフト
  * フィルターバンクに各センサーのキャリブレーションファクターを入れておく。
  * イメージはこんな感じ。[[attachment:MEDMdesign_PEMinjectionVer2.png]]
 * エンドでの作業手順(2階へのものの搬入、クリーンブース内の中2階へのアクセス方法等)をTypeAチームに相談する。
  * Xエンド2階へはT3で、Yエンド2階へはキャタピラ付きのキャリー(名称不明)で坂を登って運び入れている(by奥富さん)。

== Results ==
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/result_20171226|Rehearsal of rehearsal on 26th Dec., 2017]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/result_20180216|Rehearsal between 12 and 16 Feb., 2018]]

== Meetings ==
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20171206|2017/12/06 Kick-off meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20171212|2017/12/12 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20171219|2017/12/19 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20171225|2017/12/25 Small meeting for rehearsal of rehearsal]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20171228|2017/12/28 Evaluation meeting of rehearsal of rehearsal]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180116|2018/01/16 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180123|2018/01/23 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180208|2018/02/08 Detchar meeting (only for PEM injection)]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180220|2018/02/20 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180227|2018/02/27 Detchar meeting]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180306|2018/03/06 Detchar meeting (focusing on PEM)]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180312|2018/03/12 Detchar meeting (focusing on PEM)]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180322|2018/03/22 Small meeting with TypeA people]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180404|2018/04/04 PEM meeting with CRY]]
 * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/meeting_20180412|2018/04/12 PEM meeting]]

Next meeting is 2018/04/12 18:00-- Detchar meeting

== What has been done ==
 * Consider how many DAC, ADC, CH are required at each measurement point.
 * 大きい加振機の所在を麻生さんに確認。
 * Differential input/output of CDS.  (CDSの差動入出力への対応。)
 * Consider how many people are required.
 * 解析コードを作る人手を確保。
 * 磁束計の検討 --> 長野
 * ホワイトニングフィルターの確保 --> 端山
 * 山本さんにCALで似たようなコードを作ってないか確認する。
 * Calibrate sensors and actuators.
  * Consider how to calibrate them.
 * Consider how to connect all instruments.
  * Ground problem. (各実験エリア(特にエンド)でのグラウンドの確認。)
 * Make analysis codes --> Hayama, Pil-jong
 * Gather all required instruments listed in above tables.
 * 持っている機器、買う必要がある機器の確認し、見積りを取る。-->長野
 * 小さい加振機の検討。
  * 例えば、https://www.monotaro.com/g/02599650/ とか、https://www.toyo.co.jp/mecha/products/detail/themodalshop-2002e.html#link3 とか、http://www.arbrown.com/em/products/labworks/FG-142.pdf とか。
  * 必要ならRobertに聞いてみる。
 * 各エリアで確保できるデジタルのチャンネル数の確認。--> EXC: 端山、EXV: 端山、IMC0: 三代、BS: OK
 * 予行演習・本番測定の人手の確保。
 * ラックの状況をまとめる --> 三代
 * 加振機の確保 --> 三代・端山
 * 既存のセンサー・アクチュエータのリスト化 --> 端山(シフトコール)
 * Detcharの計算機にPython(vertualenv環境)をインストールする。-->端山・Pil-jong
 * アンプ(QSC RMX5050a)の入出力コネクターを作る。（2セットずつ）
  * 入力：BNC-U字端子（止めネジ径:M3?）＋ U字端子-U字端子（GNDと-の接続用）[[https://jp.rs-online.com/web/p/crimp-ring-terminals/6048086/|これとか]]
  * 出力：BNC-バナナプラグ（約φ4）[[https://jp.rs-online.com/web/p/bnc-test-leads/1759315/|これとか]]

== Paper plan ==
 . [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/PEMinjection/bKAGRA-phase1/paper_plan|Only for collaboraters]]

 * 腕方向の地面振動のキャビティ的蓄積