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GAMMADATAP.O. Box 15120S-750 15 UPPSALASWEDEN

Phone +46 18 56 58 00Fax +46 18 55 58 88E-mail info@gammadata.seHome Page http://www.gammadata.se

GAMMADATA Finland OyP.O. Box 28FIN-00301 HELSINKIFINLAND

Phone +358 9 2709 1760Fax +358 9 4774 4235E-mail esa.heikkinen@gammadata.inet.fiHome Page http://www.gammadata.se/finland.html

Service and SupportFor service and support in United States, pleasecontact Pasco Corporation. For service andsupport in Finland, please contact GAMMADATAFinland Oy. Outside these areas, please contactGAMMADATA.

Manual CreditsWinDAS User’s Guide by Magnus Lövefors.Editors: Karl Göran Görsten, Dag Sedin andMagnus Lövefors.

WinDAS™ User’s GuideVersion 1.1 / Microsoft® Windows™

First EditionDecember 1997

Copyright© 1997 Nordic Realtime Systems AB (NRTS AB).All rights reserved. No part of this publicationmay be reproduced, transmitted, transcribed,stored in a retrieval system, or translated notany language in any form by any means withoutthe written permission of NRTS AB. WinDASis distributed by GAMMADATA.

Software License NoticeYour license agreement with GAMMADATA,which is included with the product, specifiesthe permitted and prohibited uses of theproduct. Any unauthorized duplication oruse of WinDAS in whole or in part, in print,or in any other storage and retrieval system,is prohibited.

Licenses and TrademarksGAMMADATA, the GAMMADATA logo, andGDM (GammaData Measurement systems)are trademarks of GAMMADATA. WinDAS(Windows Data Acquisition System) is a trade-mark of NRTS AB. Microsoft and MS-DOS areregistered trademarks and Windows is a trade-mark of Microsoft Corporation.

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WarrantyGammadata warrants its Products, Software, and Services according to thesewarranty provisions, as applicable to specific Products.

LIMITATION ON DAMAGE AND LIABILITY GAMMADATA’STOTAL LIABILITY IN DAMAGES OR OTHERWISE SHALL NOTEXCEED THE PAYMENT, IF ANY, RECEIVED BY GAMMADATAFOR THE UNIT OF PRODUCT, SERVICE, OR SOFTWAREFURNISHED, OR TO BE FURNISHED, RESULTING IN THELOSS OR DAMAGE CLAIMED. IN NO EVENT SHALL GAMMA-DATA BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL,INDIRECT, PUNITIVE, OR SPECIAL LOSS OR DAMAGES OFANY KIND, SUCH AS, BUT NOT LIMITED TO, LOST BUSINESSREVENUE, LOST PROFITS OR COSTS OF DOWNTIMERESULTING FROM GAMMADATA’S PRODUCTS, SERVICESOR SOFTWARE, HOWEVER CAUSED, WHETHER BASED ONCONTRACT, TORT (INCLUDING NEG-LIGENCE), OR ANYOTHER LEGAL THEORY.

Liability to third parties for bodily injure, including death, resultingfrom Gammadata’s performance or Product shall be determinedaccording to applicable law. No claims, regardless of form, arisingout of or in any way connected with Products, Software, orServices furnished by Gammadata, may be brought by Buyermore than 1 year after the cause of action has accrued orGammadata’s performance has been completed or terminated,whichever is earlier.

Warranty Conditions1. Only Gammadata authorized personnel may make repairs or

modification to the Products. Unauthorized repairs andmodifications will void this warranty.

2. The Product must have been used under normal operatingconditions and the service procedures described in the manualmust have been followed. Gammadata shall make the solefinal determination as to whether failure occurred in normaloperation (under warranty) or whether the Product wassubjected to other than normal operation (excluded fromwarranty).

3. The Customer must give Gammadata notice of Product failurebefore the end of the Product warranty period.

4. The Warranty Period remaining on the date Gammadatareceived notice of failure shall apply to the repaired or replacedProduct from the data of reshipment to customer. OnlyProducts shipped as paid replacements shall have a newWarranty.

5. The Customer shall be responsible for and shall immediatelyfile claims against carrier of loss or damage to Products duringeither the initial shipment to Customer or the Customer’s returnto Gammadata for repair or replacement.

6. All obligations of Gammadata under this warranty shall cease,and no adjustment, credit, or refund shall be made with respectto any Product which is used by the Customer without a finalinstallation by Gammadata authorized personnel, if such aninstallation is specified on Gammadata’s quotation.

7. Gammadata has no warranty obligation other than as specifiedby this warranty.

General Limited WarrantyGammadata warrants products, parts, and accessories manu-factured and sold by Gammadata (”Products”) and firmware andsoftware media furnished by Gammadata in or for use withProducts (”Software”) to be free from defects in material andworkmanship and to be in substantial compliance with operationalfeatures of Gammadata’s published specifications at the time ofsale. Gammadata makes no warranty that the operation of anySoftware will be uninterrupted or error free. Gammadata’s warrantyfor services provided by Gammadata in connection with Products(”Services”) shall be as stated in Gammadata terms and conditionsof service for specific Product.

Warranty PeriodsThe warranty period for WinDAS™ Software is limited to12 months from the date of shipment from Gammadata.

Warranty RemediesBuyer’s sole and exclusive remedy under warranty shall be repairor, at Gammadata’s option, replacement of defective Products,parts, accessories, or Software. If, in Gammadata’s opinion, suchrepair or replacement is not feasible, or if such remedy fails of itsessential purpose, Gammadata may refund or credit a portion ofany sum paid by the Buyer for the Product, Software, or Service.Inwarranty repair or replacement parts are warranted only for theunexpired portion of the original warranty period.

General Exclusion From CoverageGammadata’s warranties shall not apply to the extent thatmalfunction is caused, in Gammadata’s reasonable opinion, by (1)accident, abuse, alteration, misuse, or neglect; (2) failure to useProducts under normal operating conditions or environment, orwithin Gammadata-specified ratings, or according to any operatingconditions provided by Gammadata; (3) lack of routine care ormaintenance as indicated in any Gammadata operating ormaintenance instructions; (4) failure to use or take any properprecautions under the circumstances; (5) user modification ofany Product or Software; or (6) latent defects discovered afterexpiration of the applicable warranty period. Additional exclusionsfrom coverage may apply to specific Gammadata Products.

Other Suppler WarrantiesWarranties given by other suppliers of equipment, accessories,components, or computer software not owned by Gammadata butincorporated by Gammadata on or into Products are passed on toBuyer and shall apply only to the equipment, accessories,components, or computer software of which they are a part.Gammadata shall have no liability under warranties provided byother suppliers, nor shall Gammadata have any liability for failureof other suppliers to perform under their warranty. Gammadata’sliability under warranty shall be determined solely by Gammadata’swarranty, including all exclusions and limitations.

Exclusion of Implied WarrantiesThis limited warranty is expressly in lieu of and excluding all otherexpress or implied warranties, including, but not limited to,warranties of merchantability and of fitness for a particularpurpose, use or application.

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Contents

Page1 Introduction 1

2 Installation 2

3 Starting the program 3

4 Menu Commands 44.1 The meny File 44.2 The meny Acquire 54.3 The meny Calculate 54.4 The meny CaLibrate 54.5 The meny Settings 64.6 The meny View 74.7 The meny Window 74.8 The meny Help 8

5 Gain Adjustment 9

6 Collecting and Storing a Gamma-Ray Spectrum 106.1 Summary: Collecting and Storing a Gamma-Ray Spectrum 116.1 Acuisition Modes 12

6.2.1 Commands for automatic analysis 126.2.2 Determination of cesium content 136.2.3 Determination of radon content, Rn Mode 156.2.4 The Settings for Cs, Rn and RnH2O Mode 176.2.5 Acquiring data in pulse-height analysis mode: Single spectrum 206.2.6 Acquiring data in pulse-height analysis mode: Spectrum series 206.2.7 Acquiring data in multi-channel scaling mode, MCS mode 22

7 Energy Calibration 237.1 Summary: Energy Calibration 26

8 Efficiency Calibration 27

9 Small Vocabulary of Nuclear Physics 29

10 Collection of Some Typical Spectrawith Associated Decay Schemes 33