The following table provides links to analyses of the Alcator C-Mod Motional Stark Effect Diagnostic

 

If you have problems accessing any of these memos, please contact Steve Scott at sscott@pppl.gov

 

No

Topic

Date

Comment

 

Paul Geelen report

August 2012

 

 

Description of variables in PERF code

March 2011

 

 

 

 

 

 

 

 

 

125

Check on Jinseok’s analysis of MSE geometry

Nov 2012

 

124

Effect of imperfect estimation of MSE background signal

July 2012

 

123

Official 2012 ISC calibration numbers

Jan 2012

 

122

Inferring lens position from invessel measurements

Dec 2011

 

121

Variation in intensity transmitted thru two perfect linear polarizers

July 2011

 

120

Combining near-perpendicular Stokes vectors

June 2011

 

119

Power dissipation in a multi-loop system

May 2011

 

118

Analysis of IR images of target heated by the DNB

March 2011

 

117

To include, or not include, the linear-polarizer transmission factor

March 2011

 

116

 

 

 

115

Circular polarization fraction

Oct 2010

 

114

Inferring polarization fraction from MSE data (revised from 84)

Sept 2010

 

113

Effect of background on MSE measured pitch angles

August 2010

 

112

New approach to computing A40 and A44

August 2010

 

111

Thermal isolation degradation

July 2010

mumgaard

110

Inferring PEM retardance (update of memo 70)

June 2010

 

109

Disruption torques on a thin disk

Feb 2010

 

108

Optimum orientation angle for polarimeters

Sept, 2009

 

107

Effect of image size at PEMs

July, 2009

 

106

PEM offsets and phase shift for FY09 campaign

June, 2009

 

105

Yet more on MSE thermal shields

March 2009

 

104

More on MSE thermal shields

Jan 2009

 

103

Reducing azimuthal temperature variation in the MSE canister

Dec 2008

 

102

Thermal isolation of lens mount assembly

Nov 2008

 

101

Allowable thickness of Viton sheet

Nov 2008

 

100

Simple estimate of canister temperature

Oct 2008

 

99

Loss of light intensity with a multi-lens solution

Oct 2008

 

98

Implications of dual-waveplate model for MSE

Oct 2008

 

97

Thermal resistance analysis for MSE lenses supported by …

Oct 2008

 

96

Evaluation of SF57 lenses

Oct 2008

 

95

A simple estimate of requirements for temperature control …

October 2008

 

94

Proposed solution to MSE stress-induced birefringence

Sept 2008

 

93

Thermal contact resistance for Viton O-rings

Sept 2008

 

92

Quantitative estimate of birefringence

October 2008

 

91

Effect of thermal conductivity of lens ring on temperature …

Sept 2008

 

90

(superceded by 91)

Sept 2008

 

89

Time response of a radiative heat shield

August 2008

 

88

Some considerations in MSE thermal heating

August 2008

 

87

Optimum angles for measuring birefringence

August 2008

 

86

Inferring photon count rate from fluctuations in MSE signal

June 2008

 

85

A simple estimate of the effects of background signal on pitch angles measured by MSE  (some errors.  See 113b)

June 2008

 

84

Inferring polarization fraction from MSE data

June 2008

 

83

Effect of mirror reflections on polarization direction

May 2008

 

82

Polarization changes by flat, ideal mirrors

May 2008

 

81

Dual waveplates

April 2008

 

80

Coordinates for optical calculations

March 2008

 

79

Magnification with two lenses

March 2008

 

78

Equivalent elliptical mirrors

Mar 2008

 

77

Point-to-point imaging for spherical mirrors

Feb 2008

 

76

Some calculations on spherical mirrors

Feb 2008

 

75

A closer look at MSE harmonics

Jan 2008

 

74

Effect of waveplate on linearly polarized light

Dec 2007

 

73

Effect of small errors in reference sine wave

Oct 2007

 

72

withdrawn

 

 

71

Design considerations for in-situ reference polarizer

Sept 2007

 

70

Inferring retardance from multiple frequencies

August 2007

 

69

Computing q from measured pitch angles

July 2007

 

68

Intensity of Ha emission from secondary beam neutrals

July 2007

 

67

<obsolete>

 

 

66

Angle transformation from MSE to tokamak coordinates

May 2007

 

65

Yuh conjecture with rotated neutral beam

April, 2007

 

64

Considerations for MSE plasma-sweep calibrations

March, 2007

 

63

PEM offsets for MSE 2007 calibration

Feb 2007

 

62

<obsolete>

Feb 2007

 

61

Ha emission from partially accelerated beam neutrals

Aug 2006

 

60

<obsolete>

 

 

59

<obsolete>

 

 

58

Allowable tilt angle of the DNB

May 2006

 

57

Intensity of Halpha emission from secondary neutrals

May 2006

 

56

<obsolete>

Dec 2005

 

55

The Yuh Conjecture

April 2006

 

54

A method to compute accurate FFT amplitudes

April 2006

 

53

Precision of Measured APD frequency response

Feb 2006

 

52

Considerations for uncooled apertures

Dec 2005

 

51

Polarization changes by MSE mirrors

 

 

50

Effect of spherical aberration on collimating lens in PMT assembly

Dec 2005

 

 

WGP Polarization angle vs Radius

Oct 2005

J. Ko

 

Effect of finite bit resolution of A/D on MSE Analysis

Oct 2005

 

 

MP436

August 2005

 

 

MSE proposal (near-final)

August 2005

 

 

MSE proposal (latest version)

August 2005

 

-

Revised MSE proposal (uses limiter plasma)

August 2005

 

-

Draft MSE Mini-proposal

August 2005

 

-

Considerations on MP to measure Faraday rotation

July 2005

 

49c

Tilted linear polarizers at oblique angles of incidence

July 2005

J. Ko

49

Tilted linear polarizers at oblique angles of incidence

June 2005

J. Ko

48

Linear polarizers at oblique angles of incidence

May 2005

 

47

More mirror calculations

April 2005

 

46

Pressure and magnetic field in long pulse DNB

March 2005

 

45

Considerations on Interlock for the Long Pulse DNB

Feb 2005

 

44

PEM offsets for new MSE optics

Jan 2005

 

43

Quantum calculations of polarized emission from ExB fields

Dec 2004

 

42

Effect of Zeeman splitting on MSE analysis

Nov 2004

 

41

Elliptically polarized emission

Sept 2004

 

40

Computing intensity in e1+e2 direction

Sept 2004

 

39

Polarization angle for combined MSE + Zeeman

(superceded by 43)

October 2004

 

38

Invessel Verdet measurements

August 2004

 

37

Effect of TF ripple on MSE lens L3

August 2004

 

36

Axial magnetic field from two permanent ring magnets

July 2004

 

35

Calculation of PEM offsets

Oct 2012

 

34

Analysis of Breton Angles

July 2004

 

33

Correcting for circularly polarized light in mse_2020

July 2004

 

32

The relation between real and MSE invessel optics pitch angles

July 2004

J. Ko

31

To determine the L1 position in (x,y,z) in the MSE coordinate system

July 2004

J. Ko

30

Initial results from In-Vessel MSE calibration

June 2004

 

29

Effect of torus pressure on MSE calibration

May 2004

 

28

Time Constants and Pressure in DNB Vacuum tank

May 2004

 

27

Polarizer Calibration of April 28-29

May 2004

 

26

Reflections near the Brewster angle

April 2004

 

25

Effect of finite entrance slit on tilted bandpass filters

March 2004

 

24

Analysis of Beam-into-Gas (no TF)

March 2004

 

23

More Geometry

March 2004

 

22

MSE and Zeeman splitting

Feb 2004

 

21

Angle of pi radiation in MSE reference frame

Feb 2004

 

20

Proper treatment of effect of mirrors

Feb 2004

 

19

Preliminary polarizer calibration results

Jan 2004

 

18

Linear polarizers and flat glass plates

Jan 2004

 

17

Angle of pi radiation in MSE frame

Feb 2004

 

16

Measuring polarization orientation with crossed polarizers

Nov 2003

 

15

Effect of mixed sigma/pi radiation on MSE analysis

Sept 2003

 

14

Thermal Dalpha Emission due to CX on beam ions

August 2003

 

13

How to compute polarization fraction with background

August 2003

 

12

Line Contributions to MSE Analysis on C-Mod

Feb 2006

 

11

Effect of mixed sigma/pi radiation

August 2003

 

10

 New phase offset analysis

July 2003

 

9

Corrected background subtraction

July 2003

 

8

 Detailed analysis of MSE spectra

July 2003

 

7

Is the retardance correct?

June 2003

 

6

Effect of imperfect mirrors on MSE analysis

June 2003

 

5

Effect of circularly polarized light on MSE analysis

June 2003

 

4

How to subtract background light

June 2003

 

3

How to compute MSE polarization fraction

June 2003

 

2

Effect of polarizer angle on MSE Analysis

June 2003

 

1

Effect of non-normal PEM incidence

June 2003