government of india department of atomic energy directorate of
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1. a field of 8 Tesla Should be equipped with IEEE 488 interface and USB port support for setting and controlling parameters of power supply through computer Alpha numeric display to indicate current and magnetic field V Should have a current supply with appropriate rating to heat the persistent current switch as desired by the user VI Automatic detection of quench and protection of superconducting magnet assembly with energy absorber located outside VII Should have auto run down facility It should be possible to ramp the current at user defined rate Maximum allowed ramp rate to be specified in the quote VIII A pair of current leads of suitable current rating and lengths should be supplied G Low loss liquid helium transfer tube ONE System should be supplied with a flexible liquid helium transfer tube with 3 8 or 2 diameter and 1 meter long leg on the system side Il The flexible liquid helium transfer tube should necessarily be 3 8 or 1 2 in diameter and 1 5 meter long leg on the storage Dewar side Ill Flexible horizontal section should be about 1 5 meters long IV Transfer tube should be fitted with an evacuation port for pumping the inter space H Pumping system for variable temperature insert ONE Oil filled rotary vane pump with pumping capacity of minimum 40 m h ll 3 5 meters long flexible metallic bellow with suitable end fitting should be supplied Ill All required valves and fitting2. appropriate Part Number of their offers in bold letters and the covers have to be kept in a single cover which is also to be super scribed with TENDER REF No amp DUE DATE and submitted accordingly Link for downloading Standard Tender Annexure http www igcar gov in tenders For all indigenous contracts FORM DPS P 11 and for all Imported contracts FORM DPS P 12 may be downloaded as the case may be from http www dpsdae gov in StdTenderForms asp The tenderer shall submit along with the tender Earnest Money Deposit EMD as mentioned above in the form of Demand Draft or Banker s Cheque from any Nationalized Scheduled Banks drawn in favor of Deputy Controller of Accounts Madras Regional Accounts Unit Chennai Any offer not accompanied with the EMD shall be rejected summarily as non responsive The EMD of the unsuccessful bidders shall be returned within 30 days of the end of the bid validity period The same shall be forfeited if the tenderers withdraw their offer after the tender opening during the bid validity period The Government shall not be liable for payment of any interest on EMD or any depreciation thereof However those who have valid registration with DGS amp D NSIC or DPS as on the date of submission of bids are exempted from payment of EMD Brief information about our public tender is also available at http www igcar gov in tenders and http tenders gov in department asp id 256 For terms and conditions instr
3. of a written request in the firm s letter head along with an account payee DEMAND DRAFT or Banker s cheque drawn in favour of Deputy Controller of Accounts Madras Regional Accounts Unit no MO cash or postal order acceptable payable at Chennai Wherever the tender documents are required to be sent by Post at Vendor s risk a written request for the same along with an Account Payee Demand Draft towards the tender fee shall be sent to the Deputy Controller of Accounts Madras Regional Accounts Unit at the above address indicating the details of the tender No Name and address of the firm on whose favor the tender documents are to be issued It must be ensured that such request should be sent in advance to reach this Directorate at least 10 days prior to the last date for sale of tender The envelope should be super scribed with the wordings Request for issue of tender document against Tender No es Alternatively prospective bidders can download the set of Technical Specifications along with the instructions terms and conditions from the web link mentioned below and submit the completed format along with applicable tender fee EMD and all applicable documents much before the due date of tender opening However in the case of two part tenders bidders can submit their Part I and Part II offers in separate covers size s 8 in different colors in sealed envelopes wrappers by clearly and legibly super scribing the
4. GOVERNMENT OF INDIA DEPARTMENT OF ATOMIC ENERGY DIRECTORATE OF PURCHASE amp STORES Separate item wis sealed tenders are invited from the reputed manufacturers dealers also from firms registered with DPS DGS amp D NSIC or any other Central Government Department BY THE REGIONAL DIRECTOR MADRAS REGIONAL PURCHASE UNIT DIRECTORATE OF PURCHASE AND STORES DEPARTMENT OF ATOMIC ENERGY VI FLOOR SHASTRI BHAVAN 4 HADDOWS ROAD CHENNAI 600 006 for the supply at Central Stores HWP Tuticorin Indira Gandhi Centre for Atomic Research Kalpakkam 603102 as detailed below TENDER COST LAST LAST DATE EMD SPECIFICATION AND NO OF DATE DATE OF INR QUANTITY TEN FOR FOR OPENI DER SALE RECEI NG OF INC OF PT OF TEN LUSI TENDER TENDER DER VE SET 1300 1100 OF HRS HRS TAX DPS 525 09 07 23 07 24 07 193000 Liquid helium based MRPU 15 15 15 cryostat IGCAR Detailed specification CAP and quantity are given 8290 in the tender document PT 1695 which can be purchased from Deputy Controller of ACCOUNTS Madras Regional Accounts Unit Department of Atomic Energy VE Floor Shastri Bhavan 4 Haddows Road Chennai 600 006 by paying the cost of the tender The Documents priced as above can be obtained in person from the above address between 10 00 a m And 1 00 p m on all working days on submission
5. n 300 cc hr External diameter Less than 800 mm Top plate should be fitted with necessary and suitable electrical terminals for electrical connections for thermometers heaters etc pressure relief valves evacuation ports etc Liquid nitrogen and helium level probes are to be integrated with cryostat A dimensioned schematic drawing of the cryostat including top plate and superconducting magnet should necessarily be supplied as annexure I along with OFFER for evaluation B Variable temperature sample insert ONE l Il III IV V VI Temperature range 1 6 to 300 K Temperature stability should be at least 0 1 K Mode of cooling Flow of helium gas controlled by auto needle valve mechanism Sample space diameter 30mm Ramp rate 10 C min A dimensioned schematic drawing of the variable temperature insert should necessarily be supplied as annexure II along with OFFER for evaluation C Sample insert along with sample cell for dielectric studies ONE Sample insert should terminate with a copper block with suitable tapping to mount the dielectric sample holder Dielectric sample cell for capacitance dielectric measurements on solid samples in parallel plate mode from 5 to 300 K and over a frequency range 10 Hz to 10 MHz Dielectric sample cell should be fabricated out of OFHC Top of the sample cell should have a threaded termination so that thread that the sample cell snuggly mounts at the bottom the sample insert AND in g
6. ood thermal contact with copper block mounted at the bottom of the sample holder Vi VII VIII XI Sample cell should be able to accommodate samples with a maximum diameter of 10 mm and a thickness of 4 mm Suitable spring loading arrangements should be provided to establish good electrical contacts between the sample surfaces and the electrodes over the entire temperature range Sample cell should be fully wired with two pairs of ultra miniature multicore stainless steel coaxial cables for capacitance dielectric measurements The wires are to be thermally anchored to minimize the heat leak These electrical connections should terminate with individual BNC or SMB connectors 4 numbers at the top of sample holder One unwired 10 pin terminal should be provided above the sample cell All the wiring to the sample cell should be through this terminal for ease of sample cell switch over A dimensioned schematic drawing of the sample holder indicating the details should necessarily be attached as annexure Ill for evaluation A dimensioned schematic drawing of sample cell indicating the details should necessarily be attached as annexure IV for evaluation D Temperature controller ONE II II IV V Vi VII VIII Programmable digital temperature controller to achieve desired temperature ramp value and or soaking temperature schedule using CERNOX sensor Inputs Minimum of 2 sensors CERNOX and 2 heaters with con
7. pecification of the quote V Illustrated technical catalogues of all the item should be attached with the quote VI Overall dimensions foot print and weight of the systems should be indicated in the quote VII Supplier should supply two copies of user s manual in English along with the instrument K Acceptance criteria i Temperature range of measurement 1 6 to 300 K vi vii viii Thermal stability 0 1 K Seamless variation of magnetic field from 8 T to 8T through OT Variable temperature sample insert cell for capacitance dielectric measurements in parallel plate mode on solid samples over a frequency range 10 Hz to 10 MHz Dielectric measurements on solid samples over a frequency range 10 Hz to 10 MHz and in the presence of variable magnetic field with maximum of 8 T Liquid helium consumption Less than 300 CC hr Liquid nitrogen consumption less than 300 CC hr LabView based executable and source project files codes program for automation Complete automation of the cryostat variable temperature sample insert and superconducting magnet with its power supply for fixed or continuously variable temperature and or magnetic field operation and data logging
8. s should be supplied for the operation of the pump and vacuum meters and gauges to monitor the vacuum NOTE A dimensioned schematic drawing of the cryostat including top plate superconducting magnet and variable temperature insert should be supplied along with OFFER for evaluation l Software All the software modules required for PC based control of the instruments data acquisition and display of the data should be supplied Il The scope of supply should include all the drivers required for the operation of the system Ill Data acquisition and display should be based on a LabView platform and the LabView base package for windows should be supplied IV Both executable and source code project files for LabView also should be supplied J General All accessories such as cables connectors required for the assembly testing and operation of the system should be included in the scope of supply ll Set of dimensioned drawing of cryostat including top plate superconducting magnet and variable temperature insert are to be supplied Ill Input power supply a single phase 240 V 10 ac 50 Hz if the instrument module draws less than 12 amps b three phase 415 10 ac 50 Hz mains power if the instrument module draws more than 12 amps IV All utilities such as space electrical power compressed air cooling water etc required for the installation and operation of the system should be clearly indicated in the technical s
9. trol loops Auto self tuning of the PID values Built in calibration curve for the CERNOX sensor in use Display Auto ranging 4 2 digits display Software for data logging and handling data acquisition software and LabView driver for the temperature controller should be supplied Instrument control USB and or GPIB Suitable cables to connect the sensor outputs and heater inputs to the sample holder E Superconducting magnet ONE VL Suitable superconducting magnet complete with HTSC current leads The magnet should be integrated with the cryostat and designed to minimize the liquid helium boil off Should produce a maximum of 8 Tesla field at the centre of the magnet at an operating current of less than 130A Magnetic field should have homogeneity of 0 1 within sample region of 10 mm DSV Magnetic field values at selected points along and off the axis should be provided The magnet should be fitted with a superconducting switch across all the sections to operate the magnet in the persistent current mode if required Magnetic field stability in persistent mode lt 1 0 relative h measured at 8 T The magnet should be fully protected against damage from accidental quench due to exhaustion of cryogens and or exceeding the critical current of the assembly F Superconducting magnet power supply ONE IV It should have bi polar operation Maximum output current should be 130A and should be adequate to generate
10. uctions please visit http www dpsdae gov in REGIONAL DIRECTOR MADRAS REGIONAL PURCHASE UNIT HAS THE RIGHT TO REJECT ANY OFFER IN PART OR IN FULL WITHOUT ASSIGNING ANY REASON REGIONAL DIRECTOR ANNEXURE TO TENDER NO DPS MRPU IGCAR CAP 8290 PT 1695 1 Description of the ITEM Liquid helium based cryostat for measuring dielectric properties capacitance measurements of solid sample in the temperature interval 5 to 300 K and in the presence of magnetic field up to 8 Tesla complete with variable temperature sample insert along with sample holder suitable for operation in the frequency range 10Hz to 10 MHz superconducting magnet with power supply digital programmable PID temperature controller liquid helium transfer tube and liquid helium and nitrogen level probes with digital readout systems along with associated electronics 1 SET 2 Detailed SPECIFICATIONS and Quantity A Cryostat ONE IV V VI VII VIII IX X xI Type Liquid helium bath type Primary radiation shield cooled by liquid nitrogen Aluminium based outer vacuum vessel fitted with bellows sealed evacuation valve and over pressure relief valve Liquid helium reservoir capacity minimum of 70 litres Liquid nitrogen reservoir capacity minimum of 40 litres Liquid helium consumption Less than 300 cc hr Liquid nitrogen consumption Less tha
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