CHAPTER Ⅰ．ALTERNATING CURRENTS

1．ELECTROMAGNETISM

2．ELECTROMAGNETIC INDUCTION

3．ALTERNATING CURRENTS (A．C．)

4．STRENGTH OF A．C

5．MEANING OF R．M．S

6．INDUCTIVE AND NON-INDUCTIVE CIRCUITS

7．IMPEDANCE AND INDUCTIVE REACTANCE

8．CAPACITATIVE REACTANCE

9．COMBINATION OF RESISTANCE AND CAPACITY

10．RESISTANCE，CAPACITY AND INDUCTANCE

11．PHASE DIFFERENCE

12．POWER FACTOR

13．CAPACITY AND PHASE DIFFERENCE

CHAPTER Ⅱ．PRODUCTION OF HIGH VOLTAGE．Part I

14．THE INDUCTION COIL

15．THE TRANSFORMER

16．INSULATION

17．EFFICIENCY AND POWER RATING OF TRANSFORMERS

18．TRANSFORMER RATING

19．RECTIFICATION

20．OPERATION OF TRANSFORMER WITH MECHANICAL RECTIFIER

21．NATURE OF TUBE CURRENT

22．POLARITY INDICATOR

CHAPTER Ⅲ．MEASUREMENT AND CONTROL OF HIGH TENSION VOLTAGE

23．SPARK-GAP METER

24．CORONA

25．PRIMARY VOLTMETER

26．ELECTROSTATIC VOLTMETER

27．CURRENT THROUGH A HIGH RESISTANCE

28．THE SEEMAN SPECTORGRAPH

29．CONTROL OF TUBE VOLTAGE BY RHEOSTAT

30．VOLTAGE CONTROL BY AUTO-TRANSFORMER

CHAPTER Ⅳ．CATHODE RAYS

31．CONDUCTIVITY OF AIR

32．CONDUCTIVITY OF AIR AT REDUCED PRESSURE

33．APPEARANCE OF VACUUM TUBE

34．PROPERTIES OF CATHODE RAYS

35．NATURE OF CATHODE RAYS

36．STRUCTURE OF THE ATOM

37．MEANING OF IONIZATION

38．IONIZATION BY COLLISION

39．ELECTRON BOMBARDMENT

40．ORIGIN OF ROENTGEN RAYS

CHAPTER Ⅴ．POSITIVE RAYS AND ISOTOPES

41．NATURE OF CONDUCTIVITY AT ATMOSPHERIC PRESSURE

42．CONDUCTIVITY AT REDUCED PRESSURE

43．POSITIVE RAYS

44．CHEMICAL ANALYSIS BY POSITIVE RAYS

45．ISOTOPES

46．DETERMINATION OF ATOMIC WEIGHTS BY PHYSICAL METHOD

47．DISCOVERY OF DEUTERIUM

48．THE PROTON

CHAPTER Ⅵ．ROENTGEN TUBES

49．TWO TYPES OF TUBES

50．THE GAS TUBE

51．REGULATION OF CURRENT IN GAS TUBE

52．BLACKENING OF TUBES

53．METHODS OF COOLING A TARGET

54．THERMIONIC EMISSION

55．HOT FILAMENT RECTIFIERS

56．HOT FILAMENT X-RAY TUBE

57．PREPARATION OF HOT FILAMENT TUBES

58．FOCUSING

59．THE ANODE AND TARGET

60．CONTROL OF TUBE CURRENT

61．VOLTAGE STABILIZER

62．X-RAY PROTECTION AND METALIX TUBE

63．LINE FOCUS

64．ROTATING ANODE

65．RATING

66．SHOCKPROOF TUBES

67．OIL IMMERSION

68．LOW VOLTAGE TUBES

CHAPTER Ⅶ．VALVE RECTIFICATION

69．SELF-RECTIFYING TUBES

70．VALVE RECTIFIERS

71．TYPES OF VALVES

72．HALF-WAVE RECTIFICATION

73．FULL-WAVE RECTIFICATION

74．TUBE RATING AND TYPE OF RECTIFICATION

75．THE USE OF CONDENSERS WITH VALVES

76．THE GREINACHER CIRCUIT

77．THE VILLARD CIRCUIT

CHAPTER VIII．GENERAL PROPERTIES OF X-RAYS

78．PHOTOGRAPHIC EFFECT

79．FLUORESCENT EFFECT

80．CHEMICAL AND DEHYDRATING EFFECTS

81．BIOLOGICAL EFFECTS

82．IONIZATION EFFECT

83．PENETRATING EFFECT

84．QUALITY AND TUBE VOLTAGE

85．QUALITY AND HALF VALUE LAYER (H．V．L．)

86．HOMOGENEOUS BEAM AND EXPONENTIAL LAW

87．PROTECTION

CHAPTER Ⅸ．ELECTROMAGNETIC WAVES

88．THE SPECTROGRAPH

89．MEASUREMENT OF WAVE LENGTH

90．THE ANGSTROM AND MILLIMICRON

91．THE INFRARED

92．INFRARED RADIATION IN MEDICINE

93．ELECTRIC WAVES

94．THE ULTRAVIOLET

95．SOURCES OF ULTRAVIOLET

96．THE USE OF ULTRAVIOLET IN MEDICINE

97．BACTERICIDAL EFFECT OF ULTRAVIOLET

98．PRODUCTION OF VITAMIN D

99．X-RAYS AND GAMMA RAYS

CHAPTER Ⅹ．MEASUREMENT OF WAVE LENGTH OF X-RAYS

100．REFLECTION OF X-RAYS

101．X-RAY SPECTROMETER

102．X-RAY SPECTROGRAPH

103．SHORTEST WAVE LENGTHS

104．GENERAL AND CHARACTERISTIC RADIATIONS

105．WHITE RADIATION

106．CHARACTERISTIC RAYS

107．WAVE LENGTH AND PENETRATION

108．K，L，AND M RAYS

109．INTERPRETATION OF K，L，AND M WAVE LENGTHS

110．MEANING OF CORRESPONDING WAVE LENGTHS

111．EFFECTIVE WAVE LENGTH

112．RELATION OF FOCAL SPOT TO WAVE LENGTH

CHAPTER Ⅺ．SECONDARY X-RAYS AND ABSORPTION

113．SECONDARY X-RAYS

114．SCATTERED RADIATION

115．CHARACTERISTIC RADIATION

116．PHOTO-ELECTRONS

117．SEEING IONS

118．RECOIL ELECTRONS AND SCATTERING

119．nATURE OF ABSORPTION

120．FILTRATION AND CRITICAL ABSORPTION WAVE LENGTH

121．THE MEANING OF CRITICAL ABSORPTION WAVE LENGTH

122．ABSORPTION COEFFICIENTS

123．MASS ABSORPTION COEFFICIENT

124．A NUMERICAL EXAMPLE

125．THE COEFFICIENTS μ AND τ

126．SCATTERED RAYS AND RADIOGRAPHY

127．DIAPHRAGMS AND SECONDARY RAYS

128．THE POTTER-BUCKY DIAPHRAGM

129．CAUSES OF GRID SHADOWS

130．LYSHOLM GRID

CHAPTER Ⅻ．ROENTGEN RAY DOSAGE

131．QUALITY AND INTENSITY

132．ABSOLUTE INTENSITY AND LAW OF INVERSE SQUARE

133．MEANING OF INTENSITY IN X-RAY DOSAGE

134．MEANS OF MEASURING ABSORBED X-RAY ENERGY

135．DOSAGE BY IONIZATION

136．SATURATION IONIZATION CURRENT

137．IONIZATION CHAMBERS

138．THE ROENTGEN

139．DETERMINATION OF EFFECTIVE VOLUME

140．NULL METHOD OF MEASURING IONIZATION CURRENT

141．CORRECTION FOR TEMPERATURE AND PRESSURE

142．1937 DEFINITION OF THE ROENTGEN

143．THIMBLE CHAMBERS

144．VICTOREEN CONDENSER-METER

145．AIR DOSE，TISSUE DOSE，AND BACK SCATTER

146．DEPTH DOSAGE

147．THRESHOLD ERYTHEMA DOSE

148．SPECIFICATION OF TREATMENT CONDITIONS

CHAPTER ⅩⅢ．RADIOACTIVITY

149．THE DISCOVERY OF RADIOACTIVITY

150．THE NATURE OF THE RADIATIONS

151．ALPHA RAYS

152．BETA RAYS

153．GAMMA RAYS

154．RADIUM IN TREATMENT

155．STRENGTH OF A RADIUM SOURCE

156．DOSE IN ROENTGENS

157．RADON

158．GROWTH OF RADON

159．THE CURIE AND MILLICURIE

160．DISINTEGRATION AND NATURE＇S TRANSMUTATION

161．ARTIFICIAL TRANSMUTATION

162．PROTECTION

163．OTHER RADIOACTIVE FAMILIES

CHAPTER ⅩⅣ．PRODUCTION OF HIGH VOLTAGE．Part II SUPERVOLTAGE TUBES AND HIGH SPEED PARTICLES

164．IMPORTANCE OF SUPERVOLTAGE

165．THE INDUCTION COIL

166．THE CASCADE GENERATOR

167．VAN DE GRAAFF ELECTROSTATIC GENERATOR

168．MEASUREMENT OF SUPERVOLTAGE

169．SUPERVOLTAGE TUBES

170．HIGH SPEED PARTICLES．THE CYCLOTRON

CHAPTER ⅩⅤ．ARTIFICIAL RADIOACTIVITY

171．NUCLEAR BOMBARDMENT

172．PROTON BOMBARDMENT

173．DEUTERON BOMBARDMENT

174．ARTIFICIAL ALPHA PARTICLES

175．DISCOVERY OF THE NEUTRON

176．OTHER METHODS OF PRODUCING NEUTRONS

177．IMPORTANCE OF THE NEUTRON

178．PROTECTION AGAINST NEUTRONS

179．NEUTRON BOMBARDMENT

180．THE POSITRON，THE MESOTRON，AND COSMIC RAYS

181．ARTIFICIAL OR INDUCED RADIOACTIVITY

182．RADIOACTIVE INDICATORS

183．GAMMA RAY BOMBARDMENT

184．MASS AND ENERGY

185．ENERGY FROM DESTRUCTION OF MATTER

186．EMISSION OF GAMMA RAYS IN NUCLEAR REACTIONS

187．STRUCTURE OF THE NUCLEUS

CHAPTER ⅩⅥ．HIGH FREQUENCY CURRENTS

188．CLASSIFICATION OF CURRENTS

189．THE GENERATION OF DAMPED HIGH FREQUENCY CURRENTS

190．EXPERIMENTAL DEMONSTRATION OF HIGH FREQUENCY

191．PRIMARY TESLA CIRCUIT

192．DIATHERMY WITH DAMPED OSCILLATIONS

193．SECONDARY TESLA CIRCUIT

194．THE TRIODE VALVE

195．GENERATION OF UNDAMPED OSCILLATIONS

196．DIATHERMY WITH UNDAMPED OSCILLATIONS

197．THE GENERATION OF ELECTRIC WAVES

APPENDIX

Ⅰ．SOME USEFUL CONSTANTS AND CONVERSION FACTORS

Ⅱ．TABLE OF ATOMIC NUMBERS，ATOMIC WEIGHTS AND STABLE ISOTOPES

Ⅲ．PROBLEMS AND EXAMINATION QUESTIONS

Ⅳ．INTERNATIONAL RECOMMENDATIONS FOR X-RAY AND RADIUM PROTECTION

INDEX