Title                  :EMMFF V. 1.0
Keywords               :XEDS,EELS,AES,WDS,CLS,GAM,XRF,PES
Computer               :IBM, MAC, DEC
Operating System       :ALL
Programming Language   :Fortran 77
Hardware Requirements  :None
Author(s)              :EMSA/MAS TASK FORCE
                        Ray Egerton ,Charles E. Fiori ,John A. Hunt,
			Mike S. Isaacson,Earl J. Kirkland ,Nestor J. Zaluzec 
Correspondence Address :R.F. EGERTON-CHAIRMAN
			University of Alberta
			Dept. of Physics
			Edmonton, Alberta, Canada, T6G2J1 
Documentation:

-----------------------------------------------------------------------------------

EMSA/MAS STANDARD FILE FORMAT FOR SPECTRAL DATA EXCHANGE 
 
EMSA/MAS Task Force: 
 
Ray Egerton - Chairman
University of Alberta
Department of Physics
Alberta, Canada, 
  
Charles E. Fiori
Department of Chemistry
National Institute for Science and Technology
Gaithersburg, MD 20899 
 
John A. Hunt
Department of Materials Science
Lehigh University
Bethlehem, PA  18015-3195 
 
Mike S. Isaacson, Earl J. Kirkland
Department of Applied Physics
212 Clark Hall
Cornell University
Ithaca, NY  14853 
 
Nestor J. Zaluzec
Materials Science Division -212
Electron Microscopy Center for Materials Research
Argonne National Laboratory
Argonne, IL  60439 
 
Implementation Date October 1, 1991

 
                           Abstract 
 
 
A simple format for the exchange of digital spectral data is presented, 
and has been designated as an EMSA/MAS standard.  This format is 
readable by both humans and computers and is suitable for transmission 
through various electronic networks (BITNET, ARPANET), the phone system 
(with modems) or on physical computer storage devices (such as floppy 
disks).  The format is not tied to any one computer, programming 
language or computer operating system.  The adoption of a standard 
format would enable different laboratories to freely exchange spectral 
data, and would help to standarize data analysis software. If equipment 
manufacturers were to support a common format, the microscopy and 
microanalysis community would avoid duplicated effort in writing data-
analysis software. 
 
1.INTRODUCTION 
 
The virtues of a single standard data format have been admirably related 
by various authors [1], [2], [3], [4].  It would often be convenient, 
after visiting another laboratory to use a different type of 
microanalytical spectrometer, to be able to return to one's own 
laboratory to analyze the data, or for a laboratory to be able to send a 
spectrum to another group at another location for analysis on their 
computer.  A common format would also enable test spectra to be 
transported between data acquisition systems, in order to compare 
different data-analysis routines, and would give users greater choice of 
analysis procedure, based on commercial or public-domain software. 

Obviously, an ideal solution would be for the manufacturers to represent 
data in a standard format, but they are unlikely to agree on this 
without some direction from their customers (the microanalysis 
community).  Therefore it is highly desirable for EMSA and MAS to 
proceed with adoption of a standard format.  Such a format does not 
preclude any research group or manufacturer from having their own, 
possibly proprietary, format.  Spectral data can be stored internally in 
any format, as long as there is an option to convert it to the external 
standard (and vice versa) for the purposes of exchange.  We believe that 
a standard format should poses the following attributes. 
 
1.It should be capable of representing the data exactly (without 
altering the scientific content). 
 
2.The format should be simple and easy to use. 
 
3.It must NOT be tied to any particular computer, programming language 
or operating system.  It should work on a large number of computers of 
all sizes, although we cannot guarantee that it will work on all 
possible computers.  

4.The format should be both human and machine (computer) readable. 
 
5.It should be compatible with existing electronic communication 
networks such as (but not necessarily limited to) BITNET, ARPANET, and 
with the phone system (using modems).  Future networks will likely 
retain compatibility with these. 
 
6.The format should support spectra of interest to the  EMSA/MAS 
community (such as XEDS, EELS, AES, etc.) and should be flexible enough 
to accommodate future data sets, not yet specified. 
 
7.Each file should contain enough information to uniquely identify the 
type and origin of the spectral data and to reconstruct its 
significance. 
 
8.Where possible, the format should be compatible with various 
commercial data plotting or analysis programs (i.e. spreadsheets, or 
graphical analysis packages). 
 
9.The proposed format need not be the most efficient storage mechanism.  
Its primary goals, stated above, will generally prevent storage 
efficiency.  If anything, this format will err on the side of simplicity 
and ease of use. 
 
The format originally employed by the Electron Microscopy and 
Microanalysis Public Domain Library (EMMPDL) at Argonne [1] has the 
virtue of simplicity, but is too rigid for general use.  A recent 
revision [5] corrected some inadequacies, but a more serious 
reexamination is in order.  The format proposed by a previous EMSA Task 
Force [3,4] addresses many of the problems but is thought by some 
microscopists to be too complicated for everyday use.  The VMAS format, 
whose description [6] runs to 60 pages, is also too complex for our 
perceived purpose.  A format, named JCAMP-DX, used by the infrared 
spectroscopy community [2] is specific and detailed but is somewhat off-
target for the spectroscopies of interest to our community. 

The format proposed here follows JCAMP-DX in many ways, but is less 
complicated and has features tailored to x-ray, energy-loss and Auger 
spectroscopies. We circulated a preliminary version of this proposal to 
several manufacturers of XEDS systems and have received back comments 
and suggestions, many of which have been incorporated into this 
document.  

The companion problem of a standard format for digital image storage is 
similar to that of spectral data, but is sufficiently different to 
warrant its own standard.  Whereas most spectra are sufficiently compact 
that they can be stored in a human-readable form, image data are usually 
so extensive as to require storage of 'raw' binary numbers. There exist 
formats for image storage that are in widespread use.  One of these 
(probably TIFF) should be endorsed by EMSA and MAS, allowing the 
microanalysis community to take advantage of the large amount of 
commercial and public-domain software already available.  
 
 
2.FORMAT DESCRIPTION 
 
The general structure of the data file format  can be summarized as a 
simple sequential ASCII (text) file. It begins with a series of header 
lines which serve to define the characteristics of the spectrum. These 
header lines are identified by unique keyword fields which occupy the 
first 15 positions of each line, followed by a data field. These are 
described in detail below. After the header lines, a keyword indicates 
the start of data, the data then follows on successive lines in a manner 
which is defined explicitly within the header. Finally after all the 
data is presented, an end of data keyword indicates the data set is 
complete. This is diagramatically illustrated below.

Header Lines
*
*
Successive lines begining with EMSA/MAS defined keywords
Some of which are required and some are optional 
*
*
Start of Data Keyword
*
*
Experimental Data
*
*
End of Data Keyword



In general, each line of the file either contains a keyword and its 
associated value or spectral data. All header lines are readily 
identified as they each begin with '#'in the first character field or 
column. This symbol demarks the start of a 13 character keyword field, 
providing descriptive information about the data followed by an 
associated value.  EMSA/MAS defined keywords (whose definition may be 
changed only by EMSA/MAS ) begin with a single # and occupy the first 13 
columns (characters) of each header line.   The keyword itself consists 
of at most twelve characters which directly follow the #, shorter 
keywords may be employed and any remaining spaces following the defined 
keyword  may be filled with descriptive text such as unit designation 
for ease of legibility when the file is printed (see examples in Tables 
1 and 2). If a position in the keyword field is not used it must be 
filled with a space character. The keywords are not case-sensitive, so 
that #Xunits is interpreted the same  as #XUNITS.  
 
The 14th and 15th character positions (columns) in each header line are 
occupied by keyword/value field separators, which consist of a colon 
followed by a space. The value associated with each keyword starts in 
column 16 and maybe either textual or numeric as defined by the keyword. 
Each line of the file may contain no more than 79 characters (for 
compatibility with the largest number of computers and computer 
networks, and for general legibility on standard width CRT screens).  
Since the keyword and its seperator occupies the first 15 positions, 
this means that all remaining information following the keyword is 
limited to a maximum of 64 (=79-15) character positions.  The end of 
line indicator is a carriage return, linefeed combination (<CR><LF>).  
 
The only characters allowed in the file are the space (ASCII character 
32), carriage return (ASCII character 13) and linefeed (ASCII character 
10) characters, plus the printable ASCII character set given below: 
 
!"#$%&'()*+,-./0123456789:;<=>? @   (ASCII characters 33 -  64)
ABCDEFGHIJKLMNOPQRSTUVWXYZ          (ASCII characters 65 -  90)
abcdefghijklmnopqrstuvwxyz          (ASCII characters 97 - 122)
[\] `{|}~                 (ASCII characters 91 - 96,ASCII 123-126)
 

Horizontal TAB characters are NOT permitted in this file format as a 
substitute for spaces or commas. Examples of keywords, seperators and 
data can be found in Tables 1 and 2, and are further detailed below.

2.1 REQUIRED KEYWORDS 
 
The following keywords are required and must appear at the beginning of 
the file, in the order specified below.  Although some of these may 
appear arbitrary, it is our judgment that they fulfil a long-term need.  
After several years of students and outside users passing through a 
laboratory, the result can be a vast number of data files of unknown 
origin.  Unless some adequate form of labelling is imposed from the 
start, many worthwhile data files are lost and useless data sits on a 
disk taking up valuable space. With the following minimum subset of 
keywords, it should be possible to reconstruct the significance of most 
spectra. 
 
 
Note that there must be exactly one of each required keyword, except for 
the keyword #TITLE which must appear at least once but may at the users 
decision appear more than once to provide an extended length title. 

Required Keywords 
----------------------


#FORMAT		= Character string identifies this format  as
				"EMSA/MAS Spectral Data File"
#VERSION  	= File Format Version Number (1.0 for this 		
				implementation)
#TITLE		= Gives a short description of the spectra 
				 One or more per file. Max = 64 Characters  
#DATE		= The calendar day-month-year in which the spectra         
		       was recorded, in the form: DD-MMM-YYYY.  
#TIME		= The time of day at which the spectrum was 		
			  recorded,in 24-hour format: HH:MM.  
#OWNER		= The name of the person who recorded the spectrum.  
#NPOINTS  	= Total Number of Data Points in X&Y Data Arrays
	         	 	1. <  NPOINTS <  4096. 
#NCOLUMNS 	= Number of columns of data 
	         		1. <  NCOLUMNS <  5. when DATATYPE = Y
	         		1. <  NCOLUMNS <  3. when DATATYPE = XY
#XUNITS		= Units for x-axis data, for example: eV.  
#YUNITS		= Units for y-axis data, for example: counts.  
#DATATYPE	     = Method in which the data values are  stored as 	
			  Y Axis only values  or X,Y data pairs. The 		
		       current options are the characters Y and XY.   
#XPERCHAN	     = The number of x-axis units  per channel.  
#OFFSET		= A real (but possibly negative) number    		
			representing  value of channel one in xunits
#SPECTRUM	     = Indicates the next line starts the spectral data
#ENDOFDATA	= Indicates the end of the data file

2.2 SPECTRAL DATA 
 
The spectral data must be enclosed between the following keywords: 
 
#SPECTRUM    : Signifies the beginning of spectral data (on the 	
		      next line). 
 
#ENDOFDATA   : Signifies the end of spectral data. 
 
Between these keywords, the spectrum is listed in one of two ways, as 
specified by the #DATATYPE value. 
 
In the case of spectra with equally-spaced x-values (equal increments 
per channel), up to #NCOLUMNS y-values may be given per line. For Y-axis 
datatype 1 <  #NCOLUMNS <  5. Each y-value is either a real number 
(containing a decimal point, even if there is no fractional component) 
or is expressed in exponential form (e.g. 3.142E+3), and is followed 
immediately by a comma. The corresponding x-values can be obtained from 
the specified values of #XPERCHAN and #OFFSET or #CHOFFSET. 
 
If the user prefers, data may be stored as (x,y) pairs of data points, 
at #NCOLUMNS per line. For XY-axis datatype 1 <  #NCOLUMNS <  3. The x- 
and y-values are expressed as real numbers or in exponential format, and 
are separated with a comma. The (x,y) pairs themselves are separated by 
a comma followed by at least one blank space. 
 
The reason for avoiding the use of integer numbers is that in some 
instances decimal values are generated, for example if energy- loss 
spectra have been scaled for normalization or to remove a gain change.  
If necessary the decimal point and the comma can be removed with a text 
editor (using a global replace) to give integer values, whereas the 
reverse process may not be straightforward. 
 
Numbers less than unity can be represented either with or without a zero 
preceding the decimal point (e.g. 0.1 or .1). In the case of negative 
numbers, there should be no spaces between the minus sign and the 
numerical value. We recommend that there should be no trailing spaces 
after a number (preceding the comma).  The (x,y) option has been 
included to accommodate segmented spectra, containing gaps where y-data 
are not specified, and to allow for the possibility that the x-axis 
scale is nonlinear. In addition, it makes the data compatible with most 
general-purpose graph-plotting software packages. In some future version 
of the format, this option could be extended by the addition of x and y 
spatial coordinates, to allow for x-ray maps or energy-selected images, 
but more a compact representation based on a TIFF standard might be more 
attractive. 

 
2.3  OPTIONAL KEYWORDS 
 
All optional keywords except #CHECKSUM must appear before the keyword 
#SPECTRUM and after #CHOFFSET.  If used, the check-sum value should be 
the last line in the file and is the integer summation of all characters 
in the file, excluding the last line containing the checksum itself, and 
excluding any trailing spaces after the line terminator.  This option is 
provided to test the integrity of data transmission and/or storage. 
 
With one exception, the keywords listed below require the user to 
specify an associated value as a real number (with a decimal point and 
not more than 20 characters in length, including the decimal point) or 
as an ASCII character string < 64 characters long. The exception is 
#CHECKSUM, which requires a signed integer value.  For ease of 
classification we have grouped the optional keywords in order of their 
function, thus keywords dealing with the spectrum, type of spectroscopy, 
specimen are presented together in the following listing. This grouping 
is not required within the file format, however, it is strongly 
recommended. In the keyword list below the abbreviation [RN] means the 
keyword is a real number while [nCS] indicates a character string of n 
characters.

Keywords relating mainly to Spectrum Characteristics 
-----------------------------------------------------------------

#SIGNALTYPE 	= Type of Spectroscopy, allowed values are [3CS]:
				EDS = Energy Dispersive Spectroscopy
				WDS = Wavelength Dispersive Spectroscopy
				ELS = Energy Loss Spectroscopy
				AES = Auger Electron Spectroscopy
				PES = Photo Electron Spectroscopy
				XRF = X-ray Fluorescence Spectroscopy
				CLS = Cathodoluminescence Spectroscopy
				GAM = Gamma Ray Spectroscopy
#XUNITS 		= X-Axis Data units [64CS]
#YUNITS 		= Y-Axis Data units [64CS]
#XLABEL 		= X-Axis Data label [64CS]
#YLABEL 		= Y-Axis Data label [64CS]
#CHOFFSET	     = A real (but possibly negative) number 			
			  representing the channel number whose value 	
			  corresonds to zero units on the x-axis scale.
#COMMENT       = Comment line [64CS]
                 The comment keyword may be repeated as often as desired 
				within header lines of the file. 

Keywords relating mainly to Microscope/Instrument 
---------------------------------------------------

#BEAMKV    	= Accelerating Voltage of Instrument in kilovolts [RN]
#EMISSION   	= Gun Emission current in microAmps [RN]
#PROBECUR   	= Probe current in nanoAmps [RN]
#BEAMDIAM   	= Diameter of incident probe in nanometers [RN]
#MAGCAM   	= Magnification or Camera Length [RN]
                 Mag in x or times, Cl in mm
#CONVANGLE      = Convergence semi-angle of incident beam in 		
				milliRadians [RN]
#OPERMODE   	= Operating Mode, allowed values are [5CS]:
				IMAGE = Imaging Mode
				DIFFR = Diffraction Mode
				SCIMG = Scanning Imaging Mode
				SCDIF = Scanning Diffraction Mode

Keywords  relating mainly to Specimen 
-----------------------------------------
	
#THICKNESS 	= Specimen thickness in nanometers [RN]
#XTILTSTGE 	= Specimen stage tilt X-axis in degrees [RN]
#YTILTSTGE 	= Specimen stage tilt Y-axis in degrees [RN]
#XPOSITION     = Specimen/Beam position along the X axis [RN]
#YPOSITION     = Specimen/Beam position along the Y axis [RN]
#ZPOSITION     = Specimen/Beam position along the Z axis [RN]

Keywords  relating mainly to ELS 
-----------------------------------
	
#DWELLTIME  	= Dwell time/channel for serial data 
                 collection in msec [RN]
#INTEGTIME  	= Integration time per spectrum for parallel data 	
				collection  in milliseconds  [RN]
#COLLANGLE  	= Collection semi-angle of scattered beam in mR  [RN]
#ELSDET   	= Type of ELS Detector, allowed values are [6CS]:
				SERIAL = Serial ELS Detector
				PARALL = Parallel ELS Detector

Keywords  relating mainly to EDS 
----------------------------------

#ELEVANGLE 	= Elevation angle of EDS,WDS detector in degrees [RN]
#AZIMANGLE 	= Azimuthal angle of EDS,WDS detector in degrees [RN]
#SOLIDANGLE 	= Collection solid angle of detector in sR [RN]
#LIVETIME  	= Signal Processor Active (Live) time in seconds [RN]
#REALTIME  	= Total clock time used to record the spectrum in 	
				seconds [RN]
#TBEWIND  	= Thickness of Be Window on detector in cm [RN]
#TAUWIND  	= Thickness of Au Window/Electrical Contact in cm [RN]
#TDEADLYR  	= Thickness of Dead Layer in cm [RN]
#TACTLYR  	= Thickness of Active Layer in cm [RN]
#TALWIND  	= Thickness of Aluminium Window in cm [RN]
#TPYWIND  	= Thickness of Pyrolene Window in cm [RN]
#TBNWIND  	= Thickness of Boron-Nitride Window in cm [RN]
#TDIWIND  	= Thickness of Diamond Window in cm [RN]
#THCWIND  	= Thickness of HydroCarbon Window in cm [RN]
#EDSDET  	     = Type of X-ray Detector, Allowed values are [5CS]:
				SIBEW = Si(Li) with Be Window
				SIUTW = Si(Li) with Ultra Thin Window
				SIWLS = Si(Li) Windowless
				GEBEW = Ge with Be Window
				GEUTW = Ge with Ultra Thin Window
				GEWLS = Ge Windowless

 
#CHECKSUM    = 32 BIT INTEGER NUMBER 

The #CHECKSUM optional keyword and values is used to test for data 
transmission errors in the file. The check sum is calculated by adding 
the ASCII values of all characters in the file, including spaces and 
line terminators. Trailing blanks (on each line) and the last line 
containing the checksum itself are excluded from this sum. If the 
calculated checksum agrees with that stored in the data file, the user 
can be reasonably sure that data set has been faithfully transmitted.
 
Optional user-defined keywords may be also included within the header of 
the data file. These keywords must begin with the double ## sign and 
follow all EMSA/MAS defined keywords, except for the start of data 
#SPECTRUM keyword.All field restrictions as outlined above apply to 
user-defined keywords and their values.  These user defined allow for 
expansion of this file structure to cover items that have not yet been 
explicitly defined by the EMSA/MAS Task Force. 
 
2.4  ENDING A FILE 
 
The last line of every file should be either an #ENDOFDATA or a 
#CHECKSUM line. The #ENDOFDATA keyword must immediately follow the 
spectral data, if present the #CHECKSUM keyword must follow the 
#ENDOFDATA keyword.
 
 
3.EXAMPLE OF A DATA FILE IN THE EMSA SPECTRAL FORMAT 
 
The following examples show spectral files the minimum-required keyword 
information.  Table 1 shows  an ELS data set using the x,y pair data 
format, while Table 2 shows and EDS data set using y axis data only.
 
 						     TABLE 1.
			   Example of a single column X,Y Data Set
====================================================================
#FORMAT      : EMSA/MAS Spectral Data File
#VERSION     : 1.0
#TITLE       : NIO EELS OK SHELL 
#DATE        : 01-OCT-1991 
#TIME        : 12:00
#OWNER       : EMSA/MAS TASK FORCE
#NPOINTS     : 20.
#NCOLUMNS    : 1.
#XUNITS      : Energy Loss (eV)
#YUNITS      : Intensity
#DATATYPE    : XY
#XPERCHAN    : 3.1
#OFFSET      : 520.13
#CHOFFSET    : -168
#SIGNALTYPE  : ELS
#XLABEL      :  Energy
#YLABEL      :  Counts
#BEAMKV   -kV: 120.0
#EMISSION -uA: 5.5
#PROBECUR -nA: 12.345
#BEAMDIAM -nm: 100.0
#MAGCAM      : 100.
#CONVANGLE-mR: 1.5
#COLLANGLE-mR: 3.4 
#OPERMODE    : IMAG
#THICKNESS-nm: 50.    
#DWELLTIME-ms: 100.
#ELSDET      : SERIAL
#SPECTRUM    : Spectral Data Starts Here                                  
520.13,	4066.0
523.22,	3996.0
526.32,	3932.0
529.42,	3923.0
532.51,	5602.0
535.61,	5288.0
538.70,	7234.0
541.80,	7809.0
544.90,	4710.0
547.99,	5015.0
551.09,	4366.0
554.18,	4524.0
557.28,	4832.0
560.38,	5474.0
563.47,	5718.0
565.79,	5034.0
568.89,	4651.0
571.99,	4613.0
574.31,	4637.0
577.40,	4429.0
580.50,	4217.0
#ENDOFDATA   :
=====================================================================
 						TABLE 2.
			Example of a 5 Column Y-Axis only Data Set
====================================================================
#FORMAT      : EMSA/MAS SPECTRAL DATA STANDARD
#VERSION     : 1.0
#TITLE       : NIO Windowless Spectra OK NiL
#DATE        : 01-OCT-1991 
#TIME        : 12:00
#OWNER       : EMSA/MAS TASK FORCE
#NPOINTS     : 80.
#NCOLUMNS    : 5.
#XUNITS      : Energy (eV)
#YUNITS      : Intensity
#DATATYPE    : Y
#XPERCHAN    : 10.
#OFFSET      : 200.
#CHOFFSET    : -20.
#SIGNALTYPE  : EDS
#XLABEL      : X-RAY ENERGY
#YLABEL      : X-RAY INTENSITY
#BEAMKV   -kV: 120.0
#EMISSION -uA: 5.5
#PROBECUR -nA: 12.345
#BEAMDIAM -nm: 100.0
#MAGCAM      : 100
#OPERMODE    : IMAG
#THICKNESS-nm: 50    
#XTILTSTGE-dg: 45.
#YTILTSTGE-dg: 20.
#XPOSITION   : 123.
#YPOSITION   : 456.
#ZPOSITION   : 000
#ELEVANGLE-dg: 20.
#AZIMANGLE-dg: 90.
#SOLIDANGL-sR: 0.13
#LIVETIME  -s: 100.
#REALTIME  -s: 150.
#TBEWIND  -cm: 0.00
#TAUWIND  -cm: 2.0 E-06
#TDEADLYR -cm: 1.0 E-06
#TACTLYR  -cm: 0.3
#EDSDET      : SIWLS
#COMMENT     : The next two lines are User Defined Keywords and values
##ALPHA-1    : 3.1415926535
##RESTMASS   : 511.030
#SPECTRUM    : DATA BEGINS HERE                                  
65.820,      67.872,      65.626,      68.762,      71.395,     
74.996,      78.132,      78.055,      77.861,      84.598,     
83.088,      85.372,      89.786,      93.464,      93.387,     
97.452,     109.96,     111.08,     119.64,     128.77,     
138.38,     152.35,     176.01,     192.12,     222.12,     
254.22,     281.55,     328.33,     348.92,     375.33,     
385.51,     389.54,     378.77,     353.80,     328.91,     
290.07,     246.09,     202.73,     176.47,     137.64,     
119.56,     106.40,     92.496,     96.213,     94.664,     
101.13,     114.57,     118.82,     131.68,     145.04,     
165.44,     187.51,     207.49,     238.04,     269.71,     
301.46,     348.65,     409.36,     475.30,     554.51,     
631.64,     715.19,     793.44,     847.99,     872.97,     
862.59,     834.87,     778.49,     688.63,     599.39,     
495.39,     403.48,     312.88,     237.34,     184.14,     
129.86,     101.59,     80.107,     58.657,     49.442,     
#ENDOFDATA   :


====================================================================
 
4. EXAMPLES OF READ AND WRITE ROUTINES 
 
Examples of a program (EMSAMASFF) and subroutines (RDEMSAMAS, WREMSAMAS) 
which utilize this format are available to all interested parties. They 
may be downloaded from either the EMMPDL or the EMSA/MAS BBS, 
information on accessing these is given in Tables 3 and 4 as well as 
articles in this issue of the EMSA Bulletin (In the Computer Corner, and 
EMSA/MAS BBS Instruction Manual) . Alternatively, they may also be 
obtained from the EMSA/MAS Task Force Chairman, R.F. Egerton.

 			           	Table 3
                 EMMPDL Telecommunications Protocol 
                ----------------------------------

Communication Lines: 300,1200-9600 Baud 8 data _& 1 stop bit, no 
parity 
Modem Protocol     : Hayes Smartmodem 1200, Bell 212A orcompatible 
Transfer Protocol  : Downloading using  XON/XOFF ASCII transfer
                     handshaking or by error-checking using KERMIT
                    BITNET Electronic Mail 
Charges            : None, except for your own phone bill.
Lines/Times        : Two Lines/24 Hours Per Day
Phone Number       : 708-972-7919    (300-1200 Baud)
                   : 708-972-7918   (1200-9600 Baud)
Login Sequence     : Username = EMMPDL
                     Password = EMMPDL 
Electronic Mail    : ZALUZEC at ANLEMC.Bitnet 

 			           	Table 4
                 EMSA/MAS BBS Telecommunications Protocol
                 ----------------------------------

Communication Lines: 1200-2400 Baud 8 data _& 1 stop bit, no 
parity 
Modem Protocol     : Hayes Smartmodem 1200, Bell 212A or 
compatible 
Transfer Protocol  : Downloading using  XON/XOFF ASCII transfer
                     handshaking or by error-checking using 
X,Y,Zmodem                  
Charges            : None
Lines/Times        : One Lines/24 Hours Per Day
Phone Number       : 800-627-3672    (1200-2400 Baud)
                   : 800-MAS-EMSA
                   : 708-972-7917 (Commerical Number for EMSA/MAS 
BBS)		 
Login Sequence     : Username = Your Own Name
                     Password = Your Own Password 



REFERENCES   
 
[1]N.J. Zaluzec, `In the Computer Corner', EMSA Bulletin  17::1 (1987) 
p.93-94, and 'RWEMMPDL Abstract', EMSA 
Bulletin 17::2 (Nov 1987) p.92. 
 
[2]R.S. McDonald and P.A. Wilks, `JCAMP-DX:  A Standard 
for Exchange of Infrared Spectra in Computer Readable 
Form', Applied Spectroscopy 42 (1988) p.151-162. 
 
[3]C. Lyman, `Task Force Committee Report', EMSA Bulletin
19 (1989) p.97-100. 
 
[4]J.A. Hunt and C.E. Fiori, `A Proposed EMSA/MAS Data 
Format for the Transfer of Spectra', EMSA Bulletin 19 
(1989) p.100-105. 
 
[5]N.J. Zaluzec, `RWEMMPDL-VERSION 1.1 Abstract', EMSA 
Bulletin 19 (1989) p.114. 
 
[6]  W.A. Dench, L.B. Hazel, M.P Seah, and the VMAS Community,
'VMAS Surface Chemical Analysis Standard Data Transfer
Format with Skeleton Decoding Programs', Surface and 
Interface Analysis, 13 (1988) p.63-122.

=============================================================


COMPILATION, LINKING AND TESTING PROCEDURE


=============================================================


The following procedure can be used to compile EMMFF using
IBM Professional Fortran Compiler by Ryan-McFarland Corp (1984)


C:>PROFORT EMMFF.SRC/L>EMMFF.LST
C:>LINK EMMFF




The following is a partial example of the I/O for EMMFF
at the present time all I/O options of the program
will not be demonstrated below.

Using EMMFF you may:

1.) Read an EMSA/MAS File
2.) Write an EMSA/MAS File
3.) Read and/or Edit (Modify) a System Parameters File
    which contains defaults for your Spectroscopy system
4.) Translate EMMPDL files into EMSA/MAS files

=========================================================

THE FOLLOWING IS A PARTIAL SCREEN CAPTURE OF THE EMMFF
PROGRAM RUNNING ON AN IBM PC AT 

=========================================================
                                                                
C:\>EMMFF                                                
                                                                
                    *************************************       
                    *                                   *       
                    * EMSA / MAS  File  Format  Program *       
                    *      Version Number :   1.00      *       
                    *           October 1991            *       
                    *                                   *       
                    *************************************       
                                                                
                                                                
                                                                
                                                                
Chooze option by typing indicated character then a <RETURN>     
----------------------------------------------------------      
                                                                
         R = Read  an EMSA/MAS Spectral Data File               
         W = Write an EMSA/MAS Spectral Data File               
         M = Modify System or File Parameters                   
         S = Read a System Parameters File                      
         T = Translate a NonEMSA/MAS Spectral Data File         
         Q = Quit this Program                                  
                                                                
Select Option: [R,W,M,S,T,Q] ?=> R                              

                                                                                
Enter name of file [DEV:NAME.EXT]=> NIO.TXT                                     
                                                                                
FORMAT      : EMSA/MAS SPECTRAL DATA STANDARD                                   
VERSION     :  1.00000                                                          
TITLE       : NIO EELS OK SHELL AND NI L SHELL                                  
DATE        : 01-OCT-1991                                                       
TIME        : 12:00                                                             
OWNER       : EMSA/MAS TASK FORCE                                               
NPOINTS     :  10.0000                                                          
NCOLUMNS    :  1.00000                                                          
XUNITS      : Energy Loss (eV)                                                  
YUNITS      : Intensity                                                         
DATATYPE    : Y                                                                 
XPERCHAN    :  2.50000                                                          
OFFSET      :  40.5780                                                          
CHOFFSET    :  100.000                                                          
SIGNALTYPE  : ELS                                                               
XLABEL      : xlabel                                                            
YLABEL      : ylabel                                                            
BEAMKV   -kV:  120.000                                                          
EMISSION -uA:  5.50000                                                          
PROBECUR -nA:  12.3450                                                          
BEAMDIAM -nm:  100.000                                                          
MAGCAM      :  100.000                                                          
CONVANGLE-mR:  15.0000                                                          
COLLANGLE-mR:  3.40000                                                          
OPERMODE    : IMAG                                                              
THICKNESS-nm:  50.0000                                                          
XTILTSTAGE  :  45.0000                                                          
YTILTSTAGE  :  20.0000                                                          
XPOSITION   :  123.000                                                          
YPOSITION   :  456.000                                                          
ZPOSITION   : 0.000000E+00                                                      
DWELLTIME-ms:  100.000                                                          
INTEGTIME-ms:  100.000                                                          
ELSDET      : Serial                                                            
ELEVANGLE   :  20.0000                                                          
AZIMANGLE   :  90.0000                                                          
SOLIDANGL-sR: 0.130000                                                          
LIVETIME  -s:  100.000                                                          
REALTIME  -s:  150.000                                                          
TBEWIND  -cm: 0.800000E-03                                                      
TAUWIND  -cm: 0.200000E-05                                                      
TDEADLYR -cm: 0.100000E-05                                                      
TACTLYR  -cm: 0.300000                                       
TALWIND  -cm: 0.100000E-05                                   
TPYWIND  -cm: 0.100000E-05                                   
TBNWIND  -cm: 0.000000E-00                                   
TDIWIND  -cm: 0.000000E+00                                   
THCWIND  -cm: 0.000000E+00                                   
EDSDET      : SIBEW                                          
SPECTRUM    : Spectral Data Starts Here                      
==============Reading Spectral Data==============            
ENDOFDATA   :                                                
==============Data  Input  Complete==============            
Do you want to print the data on your screen [Y,N]?=>Y


                                                                
  43.078         1.10000                                        
  45.578         22.2000                                        
  48.078         333.300                                        
  50.578         4444.40                                        
  53.078         55555.5                                        
  55.578         666667.                                        
  58.078        0.777778E+07                                    
  60.578        0.888889E+08                                    
  63.078        0.100000E+10                                    
  65.578        0.100000E+10                                    
                                                                
                                                                
Chooze option by typing indicated character then a <RETURN>     
----------------------------------------------------------      
                                                                
         R = Read  an EMSA/MAS Spectral Data File               
         W = Write an EMSA/MAS Spectral Data File               
         M = Modify System or File Parameters                   
         S = Read a System Parameters File                      
         T = Translate a NonEMSA/MAS Spectral Data File         
         Q = Quit this Program                                  
                                                                
                                                                           
Select Option: [R,W,M,S,T,Q] ?=> Q                                         
                                                                           
                               Quiting Program:                            
                                                                           
                         EMSA/MAS File Format Committee                    
                         ==============================                    
          Ray F. Egerton------University of Alberta -Chairman              
          Charles E. Fiori----Nat. Inst. for Science & Technology          
          John A. Hunt--------Lehigh University                            
          Michael S. Isaacson-Cornell University                           
          Earl J. Kirkland----Cornell University                           
          Nestor J. Zaluzec---Argonne National Laboratory                  
                                                                           
                                                                           
Execution terminated :  0                                                  
                                                                           
                                                                           
C:\>                                                                
============================================================
END OF DOCUMENTATION FILE