TLD PERSONNEL MONITORING SERVICE USERS
Contents
1. CELL 9345981511 9444400385 Email tldlab avanttec net T L D PERSONNEL MONITORING SERIVCE INSTRUCTIONS FOR USERS OF T L D BADGES DO NOT S 1 Don t share your TLD badge with someone else your badge is your own 2 Once loaded don t open the badge till the end of the service period 3 Don t pierce or open the sealed polythene pouch of the TLD card 4 Don t use a damaged or broken cassette of which filters have come out Ask for replacement 5 Don t leave the badge in a radiation area in washing machines or in the vicinity of hot plates ovens or furnaces 6 Don t wait till the end of the service period if you suspect a high radiation exposure report it immediately to your supervisor who will arrange to send the TLD card for urgent processing DO S 1 Load the card properly in the TLD cassette Name and personnel no should be in the front visible from outside 2 Use TLD card of the valid service period 3 Handle the TLD badge with care 4 Store the badge in a radiation free place when not in use by you 5 Report any unusual radiation incident to your supervisor r s o head of the institution 6 In the event of any doubt kindly contact personnel monitoring service T L D a Phosphor Teflon discs Front Cover Metallic filter Card with wrapper Transparent Plastic Anodised aluminium Card Bare Card to be loaded in cassette and to be returned to DR P after use Metallic fitter meh down 100 m2. data TLD 4 form is attached along with this manual c Intimation regarding changes in the requirements or suspension of service if any should reach AVANTTEC LABORATORIES PVT LTD one month in advance of the intended period of use This intimation should be sent by a separate letter duly signed by authorized person and not in the TLD 5 form d All cassettes and TLD cards once dispatched by us irrespective of whether used or unused will be charged 9 UNITS OF EQUIVALENT DOSE Sievert is the unit of Radiation Equivalent Dose 1 Sievert Sv 1 joule Kg 100 Rem milliSievert mSv 1 1000 Sv 100 mRem 10 EQUIVALENT DOSE EFFECTIVE DOSE a The cumulative effective dose whole body dose constraint for five years block from Jan 1999 to Dec 2003 shall be 100 mSv i e average 20 mSv per year in this five year block In one calendar year in this period the individual effective dose whole body dose shall not exceed 30 mSv b Annual equivalent dose limit for the skin the hands and feet is 500 mSv and for the lens of the eye is 150 mSv c However it is strongly recommended to control and minimize the individual doses to as low as possible by following good work practice In this connection it is suggested that all individual whole body doses exceeding 1mSv 100 mRem in a service period may be investigated and justified at your end d Women radiation workers of reproductive age shall normally be employed in areas where radiati
3. from the date of receipt of bill then service is liable to be suspended terminated and Head Radiological Physics amp Advisory Division BARC Mumbai amp Atomic Ener g y Regulatory Board will be informed accordingly C OTHER TERMS amp CONDITIONS 1 This contract is subject to the jurisdiction of the courts of Bombay only 14 IMPORTANT INSTRUCTIONS a Please quote the institution number in all correspondence regarding TLD personnel monitoring service Actions are liable to be delayed if correct TLD institution number is not quoted b Address for all the correspondence regarding TLD personnel monitoring service SENIOR SCIENTIFIC OFFICER AVANTTEC LABORATORIES PVT LTD NO 76 GROUND FLOOR 7TH STREET PORUR GARDEN PHASE I CHENNAI 600 095 c The service is liable to be suspended for any of the following reasons and Head Radiological Physics and Advisory Division BARC amp Atomic Energy Regulatory Board will be informed accordingly i Irregularities in returning the TLD cards for processing ii Non payment of bills within 30 days iii The investigation reports for overexposure not sent promptly iv Misuses of TLD badges like tampering of TLD card deliberate exposure to the TLD badge etc FOR ANY FURTHER INFORMATION CLARIFICATION Please write call to SENIOR SCIENTIFIC OFFICER AVANTTEC LABORATORIES PVT LTD NO 76 GROUND FLOOR 7TH STREET PORUR GARDENS PHASE I CHENNAI 600 095 PH 044 2930095 2386 2025
4. the whole body dose equivalent c In special cases depending upon the nature of radiation work if the doses to the hands and forearms are expected to be significantly higher than at the chest level additional wrist badges may be procured and used Examples of such categories are persons handling radioisotopes from close distances and radiologists doctors doing the special investigations such as cardiac catheterization angiography s etc d Persons who working with industrial radiography cameras should compulsorily use wrist badges in addition to chest badge 5 HOW TO USE a The TLD cards shall not be used without being loaded in the holders Once the card is loaded in the cassette it should not be removed till the end of the service period It is not possible to determine the nature and energy of the incident radiation from a TL card used without a cassette and hence dose estimation will not be possible b Whenever working in the radiation field TLD badge should be always worn by the person c A TLD badge allotted to one user should not be shared by any other person d Each institution should keep apart one TLD card loaded in a chest TLD holder as CONTROL which is required for correct dose evaluation The control badge should be stored in a radiation free area where there is no likelihood of any radiation exposure Places such as X ray rooms rooms in which radioactive materials are stored handled or used and areas in the immediat
5. 5 b After receiving the investigation reports from the institution the overexposure cases are reviewed by BARC and advise on necessary follow up will be intimated to the concerned institution 13 TERMS amp CONDITIONS OF PERSONNEL MONITORING SERVICE A CHARGES The charges for TLD cards amp Cassettes are as follows 1 Processing charge per TLD Card Rs 125 2 Lost Tampered Overexposed contaminated card which needs to be replaced Rs 143 3 Chest TLD cassettes Rs 86 4 Registration chares for new radiation worker Rs 150 B BILLS 1 Based on the normal requirement of TLD cards of institution an estimated annual bill will be sent as advance Bill at the beginning of the year Final bill will be sent at the end of the year taking into account the actual material supplied amp the amount received against advance bill 2 The bill will contain only details of material supplied and no details of the purchase or dispatch voucher postal receipt references will be quoted Such records if necessary should be maintained by the institution to ensure prompt payments of the bills 3 TLD personnel monitoring services bills should be paid immediately within 30 days on receipt of estimated bills by demand draft in favor of M s AVANTTEC LABORATORIES PVT LTD payable at Chennai Bank commission for demand draft will be borne by institution concerned 4 If the institution fails to send the payment towards the estimated bill within 30 days
6. 5 form within 5 days after the end of the service period provided the cards to be used for next cycle are received Unused TLD cards should not be retained at the users end for use during subsequent period Please note all the TLD cards sent should be accounted for by the user institution In exceptional cases when fresh cards are not received in time the old TLD cards may be continued to be used until the new cards arrive but the extended period of use should be clearly indicated on the TLD cards by sticking a label on the polythene pouch and in the accompanying TLD 5 forms Late return non return of TLD cards do not serve the purpose of personnel monitoring b The institutions should always send back the TLD cards to be read by registered post Sending of TLD by air courier should be avoided as it is possible that airport authorities will screen the package under X Ray machine at the airport c If a TLD card is not used the remark not used should be written on the TLD card as well as in the TLD 5 form against the name the card was assigned for d While returning arrange the TLD cards in same order as listed in TLD 5 forms Write the nature of radiation sources handled against the respective names in the TLD 5 form e Use plastic boxes for returning the cards to avoid loss during transit The boxes in which we are sending the TLD cards may be reused for returning the TLD cards f If you envisage that some workers who are already avail
7. boratory at the end of monitoring period Signature of RSO Signature of Head of institution Date Date The duly filled form shall be sent to Avanttec Laboratories P Ltd 76 ga Street Ground Floor Porur Garden Phase 1 Chennai 600 095 Tel 044 2386 2025 Mobile 9345981511 9444400385 Fax 044 2386 2024 Email tldlab avanttec net Personnel data updated in NODRS Signature Date Instructions for filling Please fill the form with correct data giving all the required information after carefully reading it In case of absence of ADHAR number indicate the type of identity card such as PAN card Ration card Driving license voter card etc and its number in the first row of Sr no of 14 Sr No 16 A amp B is related to previous radiation work record Hence information of previous work shall be given in these boxes If the worker has not worked outside India do not fill 16 A a amp b If you are getting involved in the radiation work for the 1 time leave fields in Sr No 16 blank The form must be signed by the worker and approved by the Head of the institution RSO Please note that the correct filling of data is in your interest
8. data form PDF FORM and User s Manual The application form and personal data forms for all persons to be monitored should be duly filled in and returned to Sr Scientific Officer Avanttec Laboratories Pvt Ltd 76 Ground Floor 7 Street Porur Gardens Phase I Chennai 600 095 b Depending on the radiation work and the sources being handled the institution will be informed about the total number of TLD badges for use on chest wrist c The first consignment of TLD badges containing TL cards along with TLD 5 form will be sent by Registered Post Courier This will be for a specified period of use 3 SERVICE PERIOD a Depending upon the type of installation TLD service to an institution may be on monthly or quarterly basis The institution will be intimated about the same b After one service period the used cards have to be replaced by the fresh cards sent by Avanttec Laboratories Pvt Ltd for the next service period NOTE 1 For all purposes only one address will be kept in our records Hence address of the branches temporary sites cannot be entertained 2 Since the materials are sent by Registered Post Courier instead of individual s name designation e g Officer In Charge Doctor In Charge Director etc should be given in the address 3 The address should be completed with pin code Phone no Fax no Telex no email address Each institution and all radiation workers to be monitored will be allotted an Institution n
9. e AVANTTEC Finding Solutions Saving Lives TLD PERSONNEL MONITORING SERVICE USERS INSTRUCTION MANUAL KINDLY PRESERVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE AVANTTEC LABORATORIES PVT LTD No 76 7 STREET PORUR GARDENS PHASE I CHENNAI 600 095 INDIA E Mail tldlab avanttec net Tel 91 44 2386 2025 TLD PERSONNEL MONITORING SERVICE USER INSTRUCTION MANUAL Personnel doses received by Radiation Workers are determined from measurements made Thermo luminescent Dosimeters carried on the person This type of dose estimation is called Personnel Radiation Monitoring Aim of personnel monitoring programme as outlined in Radiation Protection Rules 1971 promulgated by Government of India under Atomic Energy Act 1962 33 of 1962 is to 1 Monitor and control individual doses regularly in order to ensure compliance with the stipulated dose limits 2 Report amp investigate overexposures amp recommend necessary remedial measures urgently 3 Maintain lifetime cumulative dose records of the users of the service As a rule no person is permitted to work in the radiation X rays gamma rays betas and or neutron field without the use of a proper personnel monitoring badge device unless exempted and authorized by Radiological Physics amp Advisory Division Bhabha Atomic Research Centre Mumbai In case of any employer manager or some other person compels a worker to perform certain radiation work without providi
10. e vicinity of such rooms are NOT RADIATION FREE AREAS and should be avoided for storing the TLD cards Kindly note that the TLD card and cassette for control TLD badge will also be charged e While leaving the premises of the institution workers should submit their badges in the place where the control badge is kept Also when no radiation work is being carried out badge should be kept along with the control TLD badge f A TLD cassette holder showing any of its filters metallic pieces loose or falling off or otherwise damaged should not be used Ask for replacement of such holders The cassette for replacement will also be charged g ENSURE THAT YOUR BADGE IS NOT LEFT IN THE RADIATION FIELD OR NEAR HOT PLATES OVENS FURNACES and BURNERS etc h Institutions using open unsealed radioactive sources should periodically check the TLD cassette for radioactive contamination by using suitable instruments The cassettes which are found to be contaminated should be disposed of at your end as radioactive waste The contaminated badges should not be returned to us 1 Personal numbers are allotted to the radiation workers by Calibration amp Dose Record Section Radiological Physics amp Advisory Div BARC Mumbai They are permanent and should not be changed at your end 7 HOW TO RETURN THE USED TLD CARDS a Return all the cards not the cassette used and or unused immediately after every service period in one lot along with the TLD
11. g cm cover tii for loading TLD card Plastic transparent 180 mg am Open window Paper 12 mg cm Fig 1 Assembly of TLD badge Front view of TLD badge AVANTTEC LABORATORIES P Ltd CHENNAI Affix 3 5cm 76 7 street Porur Garden Phase 1 Chennai 600 095 x2 5cm BARC Accredited TLD Personnel Monitoring Laboratory recent photo PERSONAL DATA OF RADIATION WORKER of radiation worker Instructions Use block letters amp leave one blank square between each word For office use only 1 Institution Number r i tt 2 Personal No J 3 Name amp Address of Present institution 4 Name in Full Sumame Name Middle Name ieee eee DLILILLLLLLLLLLLLLLLIJ 6 Name of Surname Name Middle Name Father Put X in applicable box 7 DateofBirth TTT amp Se M F D D M M Y Y Y Y 9 Place of birth Village Town State 10 Qualification Mark X in applicable box If not available specify in box for Others Graduate EN Post Graduate Doctorate Engineer Med Doctor Engg Diploma BN HSC SSC 1 Others ll Designation Mark X in applicable box If none is applicable specify details in box for Others C R S O Site in charge C Scientist C Med Physicist C Radiologist C Rad Therapist Radiographer C Technician C Supervisor C Service Engineer Scientific Assistant C Nurse Helper C Ward boy Ayah Trainee O O
12. ing the service are not going to work in radiation field in the immediate future the information about that should be sent at least one month before the start of the next cycle The no of cards to be sent will be reduced accordingly g If high exposures to persons are suspected their TLD cards can be returned immediately to us along with details of the incidence for urgent processing and necessary action h If a TLD card is lost at your end a declaration stating the circumstances under which the card was lost duly signed by the user and the officer in charge R S O Physicist should be sent to us The details of the radiation work done and the dose expected during the monitoring period should also be intimated to us Note that an amount of Rs 125 will be charge for replacement 8 CHANGES IN REQUIREMENT ADDITION DELETION OF NAMES a Specify the changes in the requirements if any clearly in the following format 1 Names to be added 2 Names to be deleted 3 Total monthly requirement of TLD cards 4 Additional requirement of chest wrist TLD cassettes if any kindly do not state your requirements vaguely e g some TLD cards use above format for clarity b A personal data form should be filled in for each radiation worker and the same should be sent to us This will help us to maintain correct life time dose records of the radiation workers All new names should be accompanied by the completed personal data forms A copy of personal
13. ng personnel monitoring badge the matter must be immediately brought to the notice of Head Radiological Physics amp Advisory Division Bhabha Atomic Research Centre Mumbai 400 085 and Atomic Energy Regulatory Board AERB Niyamak Bhavan Anushaktinagar Mumbai 400 085 1 GENERAL FEATURES OF TLD BADGES a It is used to measure external individual doses from X beta and gamma radiations It consists of a TLD card loaded in a cassette having suitable metallic filters It is based on the phenomenon of thermo luminescence the emission of light when certain materials are heated after exposure to radiation It gives very reliable results since no fading is observed under extreme climatic conditions ambient temperature and humidity b TLD card A TLD card essentially consists of three CaSO Dy Teflon TLD discs 13 3mm dia x 0 8 mm thick mechanically clipped over three symmetrical circular holes each of diameter 12 mm on a nickel plated aluminium plate 52 5mmx29 9mmx mm An asymmetric V cut provided at one end of the card ensures a fixed orientation of card in the TLD cassette A thin paper wrapper 12mg cm provides personal data amp the period of use To protect the TLD discs from dust and mishandling the card along with its wrapper is sealed in a thin plastic polythene pouch Pouch also protects the card from radioactive contamination while working with open sources c TLD Cassette TLD cassette card holder is made of high im
14. on shall be at uniform rate not more than 20 mSv per year When pregnancy has been diagnosed arrangements should be made to ensure that she will work only in the areas where exposures are most unlikely to exceed 2 mSv 200mRem during the remaining period of pregnancy 11 DOSE REPORTS a The dose reports are sent after processing the respective personal TL cards and contain current period doses and the up to date cumulative doses of the current year Doses are reported in units of mSv millisievert b Annual dose reports are sent after the end of the year and contain annual doses and cumulative life time doses of all radiation workers Any discrepancy in the annual dose report should be intimated to us promptly and positively within three months from the date of dispatch of the report Complaints received subsequent to this period will not be entertained 12 OVER EXPOSURES Dose equivalent recorded by the chest badge exceeding 10 mSv 1000 mRem is treated as overexposure and the same is reported promptly to the institution and the individual concerned The institution should arrange to investigate the causes of overexposure and report the findings to Avanttec that will be communicated to the appropriate authorities for overexposure at BARC a The persons receiving more than 100 mSv will be subjected to hematological examination including differential blood counts and chromosome aberration test at Bhabha Atomic Research Centre Mumbai 400 08
15. pact plastic TLD card when inserted in the proper position in the cassette will have the first disc D1 sandwiched between a pair of filter combination of 1 mm Al amp 0 9 mm Cu 1000 mg cm total thickness Copper filter is nearer to the TLD disc The second disc D2 is sandwiched between a pair of 1 5 mm thick plastic filters 180 mg cm The third disc D3 is positioned under a circular open window A clip or strap attachment affixes the badge to the user s clothing or to the wrist d Types of TL badges 1 Chest badge used for estimation of the whole body dose worn at the chest level 2 Wrist badge has a strap to be worn around wrist It is used to estimate the dose to hands and to the forearms when they are likely to be selectively exposed e Unloading and loading of TL card into cassette Clip is fixed on the back cover of the cassette sliding the back cover of the cassette in the direction of the arrow Fig 1 removes the back cover The card along with the sealed polythene cover can be pushed out of the cassette Fresh card with its polythene cover can be positioned in the cassette taking care of the V notch positioning Back cover can be slider back to close the cassette 2 SERVICE PROCEDURE a On receipt of a request from an institution desirous of availing of the TLD personnel monitoring services Avanttec Laboratories Pvt Ltd will send copies of the application form for Personnel Monitoring PMS form the personal
16. rsonal No LI LLLI iii Duration of work From MM YY ILL reoamvv LT tt iv Name and address of previous institution DECLARATION I name of radiation worker certify that the information given above are true to the best of my knowledge I further undertake that 1 I will always wear Personal Monitoring PM badges while working in radiation field I will not share the PM badge with any other person I will keep the badges at the designated location while not in use and will not leave them in the radiation area 2 I will not tamper with the PM badge In case of damage contamination fall in radiation area or any accidental exposure to the badge I will inform the RSO Head of the institution 3 I will inform the RSO management in the event of any incident causing damage to the source device while handling or any other alarming situation involving the radiation source 4 J will submit the Dose certificate to the service provider for the dose received on foreign abroad assignments Signature of Radiation Worker Date name of RSO certify that Mr name of radiation worker has undergone the required training in Radiation protection and use of personal monitoring devices I undertake to ensure proper use of personal monitoring device and to return the used badge promptly to the processing la
17. ther 12 Nature of Work Mark X in applicable box es If none is applicable specify details in box for Others C Diagnost Radiography C Intervent Radiology C Fluoroscopy CT Scan G Dental Radiography Nuclear Medicine Radiotherapy CO Brachy Therapy E Med Accelerator Ind Radiograph Ind Accelerator C Irradiator Mining Milling C Nucl Gauge C Luminous Painting C Well Logging C Research Agriculture C Quality Audit C X Ray Diffraction Surveillance Safety Sterilization Veterinary 1 Others 13 Type of Employment work Mark X in applicable box E Regular Temporary Casual EN Consultancy 14 Type of ID TTL TTT we COCO ADHAR Card No FEEELEILIIIIIIT 15 Badge requirement Chest TLD badge Chest Wrist TLD badge C Neutron badge 16 Radiation work history A a Have you worked with radiation in foreign institution prior to joining YES NOT the present institution b If the answer is YES then total effective dose received mSv Please attach copy of dose certificate B a Have you worked with radiation in any institution in India prior to YES NO Joining the present institution b Have you availed personal monitoring in previous institution bial E c If the answer is YES please give the following details In case of more than one institution please furnish the information on a separate sheet i Institution Number TTL ii Pe
18. umber and personal number by Calibration amp Dose Records Section Radiological Physics amp Advisory Division Bhabha Atomic Research Centre Mumbai 400 085 which will be intimated to the user institution by BARC Avanttec Laboratories and the same should be referred to in all correspondence with us Normally the TLD cards for use during a particular period will be sent in advance so as to reach the user institution during the last week of preceding month In case the TLD cards cassettes are not received in time as stated above or there is any discrepancy in the receipt of the materials the same should be intimated to us immediately 4 WHO SHOULD USE a The TLD badges to be used only by persons as approved by AERB directly working with radiation sources such as X ray units radioisotopes etc The dark room technicians sweepers helpers etc need not normally be provided with TLD badges In case of doubt kindly write to AVANTTEC LABORATORIES PVT LTD b It may please be noted that TLD badge is used to measure the radiation dose to which the user is exposed It does not protect the user from the radiation 5 WHERE TO WEAR a One TLD badge should be worn compulsorily at the chest level If a lead rubber apron is used e g in diagnostic X ray departments TLD badge should be worn under the lead apron at the chest level and same should be mentioned in the TLD 5 form b The dose recorded by the TLD badge worn at the chest level represents
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